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OpenSearchCon Europe 2026 has ended
16-17 April 2026 | Prague, Czechia 
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IMPORTANT NOTE: Timing of sessions and room locations are subject to change.

The Sched app allows you to build your schedule but is not a substitute for your event registration. In order to attend OpenSearchCon Europe 2026, please visit our website to register.

This schedule is automatically displayed in Central European Summer Time (UTC+02:00). To see the schedule in your preferred timezone, please select from the drop-down located at the bottom of the menu to the right.
Thursday, April 16
 

08:00 CEST

Meet the Ambassadors + Attendee Breakfast
Thursday April 16, 2026 08:00 - 09:00 CEST
Main Foyer
Join us for a Meet the Ambassador's Breakfast on Day 1 of OpenSearchCon Europe. Learn about our current Ambassadors. 

Light breakfast will be provided. 
Thursday April 16, 2026 08:00 - 09:00 CEST
Main Foyer
  Breaks + Networking + Special Events

08:00 CEST

Registration + Badge Pick-up
Thursday April 16, 2026 08:00 - 19:00 CEST
Main Foyer
Thursday April 16, 2026 08:00 - 19:00 CEST
Main Foyer
  Registration + Badge Pick-up

08:00 CEST

Coat + Bag Check
Thursday April 16, 2026 08:00 - 19:30 CEST
Studio A

Thursday April 16, 2026 08:00 - 19:30 CEST
Studio A
  Registration + Badge Pick-up

09:00 CEST

Keynote: Opening Remarks - Bianca Lewis, Executive Director, OpenSearch Software Foundation, The Linux Foundation
Thursday April 16, 2026 09:00 - 09:05 CEST
Bohemia 2

Speakers
avatar for Bianca Lewis

Bianca Lewis

Executive Director, OpenSearch Software Foundation

Thursday April 16, 2026 09:00 - 09:05 CEST
Bohemia 2
  Keynote Sessions

09:05 CEST

Keynote: OpenSearch in the Agentic Era - Carl Meadows, Director of Product for Amazon OpenSearch Services and the OpenSearch Project, Amazon Web Services
Thursday April 16, 2026 09:05 - 09:30 CEST
Bohemia 2
Join Carl Meadows, Chair of the OpenSearch Software Foundation Governing Board and OpenSearch Product Lead for Amazon Web Services, as he explores how OpenSearch is leading the transformation to agentic AI. Discover how OpenSearch's vector database foundation and open-source community uniquely position the project for the agentic era. Carl will reveal how AI agents are democratizing search...
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Speakers
avatar for Carl Meadows

Carl Meadows

Director of Product, Amazon Web Services
Carl Meadows is Director of Product at AWS for Amazon OpenSearch Service and is the board chair for the OpenSearch Software Foundation at the Linux Foundation.

Carl has over twenty-five years in product management developing enterprise software and cloud services. Prior to joining AWS, Carl held product management leadership roles at Engine Yard, SunGard Availability Services, SoftLayer/IBM and Symantec. He holds a BA from Berklee Colleg... Read More →
Thursday April 16, 2026 09:05 - 09:30 CEST
Bohemia 2
  Keynote Sessions

09:30 CEST

Keynote: The Next Generation of Enterprise Search: Intent‑Aware, Hybrid, and Open - Dom Couldwell, Product Manager for OpenSearch, IBM
Thursday April 16, 2026 09:30 - 10:00 CEST
Bohemia 2
Enterprise search is undergoing a fundamental shift. As user expectations rise and AI agents increasingly become primary consumers of search, the challenge is no longer simply finding information—but delivering the right context to drive better decisions, actions, and business outcomes. This keynote explores how enterprise search is evolving from keyword retrieval toward intent‑aware, adaptive...
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Speakers
avatar for Dom Couldwell

Dom Couldwell

Product Manager for OpenSearch, IBM
Thursday April 16, 2026 09:30 - 10:00 CEST
Bohemia 2
  Keynote Sessions

10:00 CEST

All-Attendee Photo 📸
Thursday April 16, 2026 10:00 - 10:05 CEST
Bohemia 2
Smile for the camera! 📸
Join our all-attendee photo immediately following Keynotes on Day 1, 16 April. 
Thursday April 16, 2026 10:00 - 10:05 CEST
Bohemia 2
  Breaks + Networking + Special Events

10:00 CEST

Break
Thursday April 16, 2026 10:00 - 10:20 CEST
Main Foyer
Thursday April 16, 2026 10:00 - 10:20 CEST
Main Foyer
  Breaks + Networking + Special Events

10:00 CEST

Solutions Showcase
Thursday April 16, 2026 10:00 - 19:20 CEST
Main Foyer

Thursday April 16, 2026 10:00 - 19:20 CEST
Main Foyer
  Solutions Showcase

10:20 CEST

Beyond Hot Spots: Revolutionising OpenSearch Performance Through Heat-Aware Operations - Gaurav Bafna & Arpit Bandejiya, Amazon
Thursday April 16, 2026 10:20 - 11:00 CEST
Bohemia 1
In large-scale OpenSearch clusters, uneven workload distribution creates performance bottlenecks that traditional shard allocation strategies can't address. We present a groundbreaking approach to cluster optimisation through heat-aware operations, transforming how OpenSearch handles resource utilisation and workload distribution. Our solution introduces a smart heat detection system that...
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Speakers
avatar for Arpit Bandejiya

Arpit Bandejiya

SDE II, AWS
Arpit Bandejiya is a Software Development Engineer ll at AWS, working in Opensearch. Over the past three years, he has focused on Shard management, scalability and performance optimization. His interests lie in distributed systems and building high performance scalable infrastruc... Read More →
avatar for Gaurav Bafna

Gaurav Bafna

Senior Software Engineer, Amazon
Gaurav Bafna is a Senior Engineer with Amazon OpenSearch Service. He is excited about scaling challenges with distributed systems. He has been with OpenSearch team for 8 years and has a good operating experience with OpenSearch clusters. He is an active contributor and a maintainer... Read More →
heat aware shard allocation osc eu26 pptx
Thursday April 16, 2026 10:20 - 11:00 CEST
Bohemia 1
  Analytics + Security + Observability
  • Presentation Slides Attached Yes

10:20 CEST

Building RAG With OpenSearch ML Plugins: From PDFs To Voice-Enabled Search - Kushagra Sharma, Genesys
Thursday April 16, 2026 10:20 - 11:00 CEST
Bohemia 3
OpenSearch's ML Commons plugin enables deploying embedding models directly on your cluster—yet many developers still rely on external services. This session demonstrates building a complete RAG system using OpenSearch as both vector store and ML inference engine. We'll cover deploying sentence-transformer models via ML Commons, processing PDFs, generating embeddings within OpenSearch,...
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Speakers
avatar for Kushagra Sharma

Kushagra Sharma

Staff Software Engineer, Genesys
I'm a Staff/Lead Software Engineer at Genesys, working on the Conversational AI team. I build intelligent search and knowledge systems using OpenSearch, focusing on vector search and RAG pipelines. I'm passionate about exploring OpenSearch's AI/ML capabilities—particularly ML Commons... Read More →
OS CON 2026 PDF pdf
Thursday April 16, 2026 10:20 - 11:00 CEST
Bohemia 3
  Operating OpenSearch
  • Presentation Slides Attached Yes

10:20 CEST

Beyond Benchmarks: Real-World AI Search Performance in OpenSearch (Lucene Vs Faiss Vs JVector) - Fernando Rejon Barrera, Zeta Alpha
Thursday April 16, 2026 10:20 - 11:00 CEST
Bohemia 2
Benchmarks produce clean numbers - but do they reflect what actually happens when users apply filters, facets, and hybrid queries in realistic document collections in production? In this session, we evaluate the real-world performance of three vector search options available to OpenSearch users: Lucene’s built-in HNSW, the Faiss engine integration, and jVector, an open-source vector search...
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Speakers
avatar for Fernando Rejon Barrera

Fernando Rejon Barrera

CTO, Zeta Alpha
Fernando is the CTO of Zeta Alpha, an Amsterdam-based startup helping High-Tech and R&D Enterprises take their Generative AI projects to production. With a PhD in theoretical physics and a hacker (builder) past, Fernando brings a unique blend of theoretical knowledge and hands-on... Read More →
Thursday April 16, 2026 10:20 - 11:00 CEST
Bohemia 2
  Search & Apache Lucene

11:10 CEST

Running OpenSearch in the Real World: Migration, Mistakes and Maturity - Tom Snuverink & Marco Arts, Schuberg Philis
Thursday April 16, 2026 11:10 - 11:30 CEST
Bohemia 1
This talk shares a hands-on journey of building and operating a large-scale OpenSearch platform in a strictly on-premises, VM-based environment. What started as an urgent Splunk replacement evolved into a Managed Detection and Response (MDR) logging platform for high ingestion rates (~40GB to 1.2TB/day per customer). The session focuses on real operational challenges and experiences:...
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Speakers
avatar for Tom Snuverink

Tom Snuverink

Mission Critical Engineer, Schuberg Philis
avatar for Marco Arts

Marco Arts

Mission Critical Engineer, Schuberg Philis
In tech for 17 years, working as a DevOps engineer.
Focused on HA-solutions and automation as a a core concept, with lots of on-prem experience.
OSC2026 Marco & Tom pptx
Thursday April 16, 2026 11:10 - 11:30 CEST
Bohemia 1
  Operating OpenSearch
  • Presentation Slides Attached Yes

11:10 CEST

Ingesting Observability Data: OpenTelemetry Collector or Data Prepper? - Karsten Schnitter, SAP SE
Thursday April 16, 2026 11:10 - 11:50 CEST
Bohemia 3
Choosing the right ingestion tool for OpenSearch is a critical architectural decision. Should you use the OpenTelemetry Collector or Data Prepper? This session provides a definitive guide to answering that question, helping you design a pipeline that is both powerful and efficient. This talk moves beyond theory into a practical comparison of design philosophies. We'll contrast the Collector's...
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Speakers
avatar for Karsten Schnitter

Karsten Schnitter

Software Architect, SAP SE
Karsten is a Software Architect at SAP. He works in the observabilty area of the SAP Business Technology Platform. Karsten is a member of the OpenSearch technical steering committee and maintainer of the Data Prepper project. He is also a member of the OpenSearch TAG Observabilit... Read More →
otel collector or data prepper KarstenSchnitter SAP pdf
Thursday April 16, 2026 11:10 - 11:50 CEST
Bohemia 3
  Analytics + Security + Observability
  • Presentation Slides Attached Yes

11:10 CEST

From Embeddings To Index: A Practitioner's Guide To Domain-Adapted Neural Search - Samuel Herman, Oracle
Thursday April 16, 2026 11:10 - 11:50 CEST
Bohemia 2
Off-the-shelf embedding models underperform on domain-specific queries, and "just fine-tune it" fails for proprietary terminology. Why? Standard fine-tuning can't teach models vocabulary they've never seen. The embedding gap costs 40-60% of search relevance; while ANN indexing only costs 1-5%. In this talk, we'll walk through end-to-end domain-adapted neural search—from embedding adaptation to...
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Speakers
avatar for Samuel Herman

Samuel Herman

Architect - AI, Vector, Oracle
Samuel is an OpenSearch Commiter, Maintainer, Technical Steering Committee member.
He is currently the architect of DataStax OpenSearch offering and previously Architect Of OCI Search Services and OCI Observability.
Thursday April 16, 2026 11:10 - 11:50 CEST
Bohemia 2
  Search & Apache Lucene

12:00 CEST

A Brief Guide to Secure Agentic Knowledge Retrieval - Christian Gross, RheinInsights GmbH
Thursday April 16, 2026 12:00 - 12:20 CEST
Bohemia 1
Agents and AI systems require answers that are reliable, precise and fast. In enterprise and organizational environments, these answers also must be secure. In fact, vector databases and search engines provide rapid access to knowledge. But a key challenge remains: how to correctly apply the permission models of underlying content sources within hybrid and semantic search workflows?This...
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Speakers
avatar for Christian Gross

Christian Gross

Co-Founder, RheinInsights GmbH
Christian is a veteran in the enterprise search field with more than a decade of hands‑on experience building search solutions for large organizations.

After completing his PhD and postdoctoral research, he joined the vendor‑independent search specialist Raytion in 2011 where

... Read More →
2026 04 17 OpenSearch Con RheinInsights A Brief Guide to Secure Agentic Knowledge Retrieval pdf
Thursday April 16, 2026 12:00 - 12:20 CEST
Bohemia 1
  Search & Apache Lucene
  • Presentation Slides Attached Yes

12:00 CEST

Late Interaction Retrieval in Practice: Implications for OpenSearch-Based Search Systems - Francisco Losada de la Rosa, AWS
Thursday April 16, 2026 12:00 - 12:20 CEST
Bohemia 3
Dense vector retrieval based on single embeddings has become the default approach for semantic search, but it introduces well-known limitations when dealing with long documents, fine-grained relevance signals, or complex queries. Late interaction retrieval models address these issues by allowing queries and documents to interact at a more granular level, typically across token-level or sub-vector...
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Speakers
avatar for Francisco Losada de la Rosa

Francisco Losada de la Rosa

WW OpenSearch Specialist SA, AWS
Francisco Losada is a Search Specialist Solutions Architect based out of Madrid, Spain. He works with customers across EMEA to architect, implement, and evolve analytics solutions at AWS. He advocates for OpenSearch, the open-source search and analytics suite, and supports the community... Read More →
Thursday April 16, 2026 12:00 - 12:20 CEST
Bohemia 3
  Search & Apache Lucene

12:00 CEST

Building an Inclusive, Diverse Community From the Ground Up - Kassian Wren, NetApp Instaclustr
Thursday April 16, 2026 12:00 - 12:20 CEST
Bohemia 2
In this session, I'll cover the basics of building a diverse and inclusive community, either around new projects or creating safe spaces for projects that don't have one. Inclusivity and equity and the keys to diversity, and science has shown time and again that diverse teams create better solutions. It's imperative especially now that we build community both in and out of software. This talk...
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Speakers
avatar for Kassian Wren

Kassian Wren

Open Source Technology Evangelist, NetApp Instaclustr
Kassian (they/them) has been a coder for nearly two decades, and in devrel for over a decade. They bring an educational spin to DevRel and love to see that "ah-ha!" moment. They see every moment as a teaching opportunity, even if it's not very effective on their three cats.
Thursday April 16, 2026 12:00 - 12:20 CEST
Bohemia 2
  Security Education & Community Development

12:20 CEST

Better Together Lunch Group
Thursday April 16, 2026 12:20 - 13:30 CEST
Moravia 1-3
About the Better Together Lunch Group The Better Together Lunch Group offers an opportunity for all event participants from underrepresented or marginalized communities (including race, gender, sexual orientation, and disability), along with their allies, to come together and build meaningful connections that extend beyond the event. We hope that this gathering will help foster greater...
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Thursday April 16, 2026 12:20 - 13:30 CEST
Moravia 1-3
  Breaks + Networking + Special Events

12:20 CEST

Lunch
Thursday April 16, 2026 12:20 - 13:30 CEST
Moravia 1-3
Thursday April 16, 2026 12:20 - 13:30 CEST
Moravia 1-3
  Breaks + Networking + Special Events

12:20 CEST

Search TAG Working Lunch
Thursday April 16, 2026 12:20 - 13:30 CEST
Studio G
Grab your lunch and join our Search TAG. See you there! 
Thursday April 16, 2026 12:20 - 13:30 CEST
Studio G
  Breaks + Networking + Special Events

13:30 CEST

Enabling Secure, Fine-Grained Resource Sharing for Team Collaboration in OpenSearch - Darshit Chanpura & Craig Perkins, Amazon
Thursday April 16, 2026 13:30 - 14:10 CEST
Bohemia 2
Before OpenSearch 3.1, plugins hand-rolled document-level access control, duplicating effort and creating inconsistent security behavior and user experiences. Even basic collaboration required security administrators to act as intermediaries. To address this, OpenSearch introduced the Resource Sharing Framework, enabling secure, fine-grained, owner-driven sharing of plugin resources while...
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Speakers
avatar for Craig Perkins

Craig Perkins

Senior Software Engineer, Amazon
Craig has been engaged with the OpenSearch community since June 2022 and focuses on the Security of the platform. Craig has an extensive software engineering background of 10 years that includes managing the search infrastructure for e-commerce websites and healthcare institutions... Read More →
avatar for Darshit Chanpura

Darshit Chanpura

Software Development Engineer, Amazon
Experienced Software Developer with full-stack experience over 6 years. Currently working as Software Engineer on OpenSearch project as part of security plugin.
Thursday April 16, 2026 13:30 - 14:10 CEST
Bohemia 2
  Analytics + Security + Observability

13:30 CEST

Apache Lucene Vector Search Update - Michael Sokolov, Amazon
Thursday April 16, 2026 13:30 - 14:10 CEST
Bohemia 3
Lucene Vector Search Update There have been a lot of exciting developments in Lucene's vector search implementation recently: so many it's hard to keep track. This talk will survey all the many contributions that have come in over the last year or two, give examples of how to make use the new capabilities, and point the way for future work in this area. Some of the specific topics may include: ...
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Speakers
avatar for Michael Sokolov

Michael Sokolov

Principal Engineer, Amazon
I spent the last 25+ years developing search-based web applications, and more recently focused on the search engine specifically, becoming an Apache Lucene committer in 2019, and contributing Lucene's first approximate vector search (ANN) implementation in 2020.
oscon 2026 sokolov odp
Thursday April 16, 2026 13:30 - 14:10 CEST
Bohemia 3
  Search & Apache Lucene
  • Presentation Slides Attached Yes

13:30 CEST

Unconference - Part 1
Thursday April 16, 2026 13:30 - 15:30 CEST
Bohemia 1
It’s safe to say Unconference is now an OpenSearchCon tradition. Each time the community gets together for this event, we learn from one another in an engaging environment with interesting talks and open discussions.Make plans to join us again and come ready to pitch your favorite speaking topic! This is an opportunity for the community to come together and kick off OpenSearchCon Europe with an...
See More →
Moderators
avatar for Kris Freedain

Kris Freedain

Senior Community Manager, OpenSearch Project
Kris Freedain (he/him) is the Senior Community Manager for the OpenSearch Project, OpenSearch Software Foundation, and technical steering committee. He is also an OpenSearch Ambassador. He has decades of experience in tech, but finds connecting people to be the most fulfilling part... Read More →
Thursday April 16, 2026 13:30 - 15:30 CEST
Bohemia 1
  Unconference

14:20 CEST

Vendor-Agnostic Analytics: Querying Open Columnar Formats With OpenSearch - Bharathwaj G & Arpit Bandejiya, Amazon Web Services
Thursday April 16, 2026 14:20 - 14:40 CEST
Bohemia 2
OpenSearch users increasingly need flexibility in how and where their data is stored - querying data in cloud object storage without re-ingestion, sharing datasets across analytics tools and engines, or migrating between platforms without costly ETL pipelines. This session presents a technical deep dive into how OpenSearch can now support indexing and querying vendor-agnostic open formats...
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Speakers
avatar for Arpit Bandejiya

Arpit Bandejiya

SDE II, AWS
Arpit Bandejiya is a Software Development Engineer ll at AWS, working in Opensearch. Over the past three years, he has focused on Shard management, scalability and performance optimization. His interests lie in distributed systems and building high performance scalable infrastruc... Read More →
avatar for Bharathwaj G

Bharathwaj G

Senior SDE, Amazon
Software engineer in Amazon , OpenSearch maintainer and leads features on improving the performance of indexing and search. Interested in designing high performance distributed systems.
vendor agnostic analytics pptx
Thursday April 16, 2026 14:20 - 14:40 CEST
Bohemia 2
  Analytics + Security + Observability
  • Presentation Slides Attached Yes

14:20 CEST

Distributed OpenSearch Monitoring at Scale With Apache NiFi and MiNiFi Agents - Vincenzo Lombardo, Seacom
Thursday April 16, 2026 14:20 - 14:40 CEST
Bohemia 3
As OpenSearch clusters grow beyond 10–20 nodes, centralized monitoring becomes a bottleneck: single points of failure, API overload, and higher latency. Traditional approaches don’t scale. This session presents a production-ready distributed monitoring architecture using Apache NiFi and MiNiFi. MiNiFi agents on each node collect local metrics via a custom NodeStatsProcessor (CPU, heap, JVM,...
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Speakers
avatar for Vincenzo Lombardo

Vincenzo Lombardo

Team Leader Apache Nifi, Seacom
Segue le tecnologie legate all’area No Code, con un focus principale sull’ecosistema NiFi (NiFi, MiNiFi, NiFi Registry, C2 Server, NiFiKop) e sul suo utilizzo in ambito ETL e nell’integrazione con altri sistemi informativi.

Ha esperienza nel campo della ricerca (Google Search Appliance, Mindbreeze, OpenSearch, oltre a Elasticsearch e allo stack ELK) e nell’indicizzazione dei log in ambito sicurezza (Wazuh e Logstash... Read More →
montioring opensearch at scale pdf
Thursday April 16, 2026 14:20 - 14:40 CEST
Bohemia 3
  Operating OpenSearch
  • Presentation Slides Attached Yes

14:50 CEST

Agentic Relevance Tuning With OpenSearch: Faster, Easier, and Higher Quality Search at Scale - Bobby Mohammed, Amazon Web Services & Daniel Wrigley, OpenSource Connections
Thursday April 16, 2026 14:50 - 15:30 CEST
Bohemia 3
Search relevance tuning is one of the hardest—and most expensive—problems in modern search systems. It demands deep expertise in Lucene scoring, complex query DSLs, and iterative manual testing. While tools like OpenSearch User Behavior Insights (UBI) and the Search Relevance Workbench provide the data and the environment for improvement, the leap from "analyzing data" to "deploying a fix"...
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Speakers
avatar for Bobby Mohammed

Bobby Mohammed

Principal Product Manager, Amazon Web Services
Bobby Mohammed is a Principal Product Manager at AWS, leading product initiatives in Search, GenAI, and Agentic AI. He has previously worked across the full machine-learning lifecycle, including data, analytics, and ML features on the Amazon SageMaker platform, as well as deep-learning... Read More →
avatar for Daniel Wrigley

Daniel Wrigley

Search Consultant, OpenSource Connections
Daniel has worked in search since graduating in computational linguistics studies at Ludwig-Maximilians-University Munich in 2012 where he developed his weakness for search and natural language processing. His experience as a search consultant paved the way for becoming an O’Reilly... Read More →
Thursday April 16, 2026 14:50 - 15:30 CEST
Bohemia 3
  Search & Apache Lucene

14:50 CEST

Integrating Docling With OpenSearch for Advanced RAG and Agentic Applications - Cesar Berrospi Ramis, IBM Research
Thursday April 16, 2026 14:50 - 15:30 CEST
Bohemia 2
This talk introduces Docling, an open-source document processing framework, and its integration with OpenSearch for production-ready AI applications. Docling converts complex documents such as PDFs, DOCX, and PPTX into structured, AI-ready formats while preserving layout, tables, images, and metadata for high-quality Retrieval-Augmented Generation (RAG). Docling is supported by the LF AI & Data...
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Speakers
avatar for Cesar Berrospi Ramis

Cesar Berrospi Ramis

Senior Research Scientist, IBM Research
Cesar Berrospi Ramis is a Senior Research Scientist at IBM Research, Zurich. With a background in mathematics and engineering, he specializes in AI applications in document understanding and is part of Docling's development team.
OpenSearchCon Europe 2026 Docling and OpenSearch pdf
Thursday April 16, 2026 14:50 - 15:30 CEST
Bohemia 2
  Search & Apache Lucene
  • Presentation Slides Attached Yes

15:30 CEST

Break
Thursday April 16, 2026 15:30 - 15:50 CEST
Main Foyer
Thursday April 16, 2026 15:30 - 15:50 CEST
Main Foyer
  Breaks + Networking + Special Events

15:50 CEST

Accelerating Aggregations with Lucene-Aware Execution in OpenSearch - Ankit Jain, Amazon Web Services
Thursday April 16, 2026 15:50 - 16:30 CEST
Bohemia 2
Aggregation performance in OpenSearch is often limited by JVM execution overhead rather than aggregation logic itself. Most queries process documents at a time (DAAT) through Lucene collectors and rely on deep virtual call chains, which restrict JIT optimizations and waste CPU resources at scale. This talk explores how Lucene-aware, bulk-oriented execution can significantly speed up aggregation...
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Speakers
avatar for Ankit Jain

Ankit Jain

Lucene Committer | OpenSearch Maintainer | AWS OpenSearch, Amazon
Ankit Jain is a Software Engineer on the Amazon OpenSearch Service team, leading performance and scalability initiatives for search infrastructure. He is an active maintainer and committer for the Apache Lucene and OpenSearch projects, with hands-on experience operating large-scale... Read More →
BulkCollection Europe pdf
Thursday April 16, 2026 15:50 - 16:30 CEST
Bohemia 2
  Search & Apache Lucene

15:50 CEST

Vectors Vs. Hallucinations: OpenSearch's GenAI Survival Kit - Neel Shah, StackGen & Laysa Uchoa, Independent
Thursday April 16, 2026 15:50 - 16:30 CEST
Bohemia 3
GenAI hallucinations plague production apps, but OpenSearch's vector search and hybrid retrieval turn unreliable LLMs into precision engines. This talk unveils battle-tested RAG pipelines that slash errors by 80%+, drawing from semantic search and real-time analytics use cases. Discover hands-on strategies: - Ingesting embeddings at scale with neural ranking and k-NN plugins for sub-second...
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Speakers
avatar for Neel Shah

Neel Shah

Developer Advocate, StackGen
A DevOps engineer with a great passion for building communities around DevOps. Organiser of Google Cloud Gandhinagar, CNCF Gandhinagar, Hashicorp User Group Gandhinagar and Open Source Weekend. Have mentored 15+ hackathons and open source programs. I have given more than 15 talks... Read More →
avatar for Laysa Uchoa

Laysa Uchoa

Platform Engineer, Independent
I'm a Python developer and Pyladies Munich organizer. Love to learn new things and to share with others. I believe that technology can make the world more democratic and just better - let's contribute to this.
Thursday April 16, 2026 15:50 - 16:30 CEST
Bohemia 3
  Search & Apache Lucene

15:50 CEST

Unconference - Part 2
Thursday April 16, 2026 15:50 - 16:30 CEST
Bohemia 1
It’s safe to say Unconference is now an OpenSearchCon tradition. Each time the community gets together for this event, we learn from one another in an engaging environment with interesting talks and open discussions.Make plans to join us again and come ready to pitch your favorite speaking topic! This is an opportunity for the community to come together and kick off OpenSearchCon Europe with an...
See More →
Moderators
avatar for Kris Freedain

Kris Freedain

Senior Community Manager, OpenSearch Project
Kris Freedain (he/him) is the Senior Community Manager for the OpenSearch Project, OpenSearch Software Foundation, and technical steering committee. He is also an OpenSearch Ambassador. He has decades of experience in tech, but finds connecting people to be the most fulfilling part... Read More →
Thursday April 16, 2026 15:50 - 16:30 CEST
Bohemia 1
  Unconference

16:40 CEST

Alert Fatigue to Action: Observability as the Backbone of Practical AIOps with OpenSearch - Stefano Pampaloni, Seacom srl
Thursday April 16, 2026 16:40 - 17:00 CEST
Bohemia 1
Alert fatigue is rarely caused by missing data. Logs, metrics, traces, and alerts are usually available, but during incidents they remain fragmented. Engineers still correlate signals manually, under pressure, relying on experience rather than shared context.This talk describes an AIOps approach where observability data becomes the basis for operational decisions. OpenSearch is used as the central...
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Speakers
avatar for Stefano Pampaloni

Stefano Pampaloni

CEO, Seacom srl
Stefano is the CEO of two open source companies operating as benefit companies, combining business activity with social and environmental impact. He founded his first Internet Service Provider in 1995, building the entire infrastructure using open source software, and later created... Read More →
opensearchcon EU 26 pampaloni pdf
Thursday April 16, 2026 16:40 - 17:00 CEST
Bohemia 1
  Analytics + Security + Observability
  • Presentation Slides Attached Yes

16:40 CEST

Operating OpenSearch at Scale With Kubernetes Operators: Lessons Learned and Community Insights - Christian Dinse, SAP SE & Prudhvi Godithi, AWS OpenSearch
Thursday April 16, 2026 16:40 - 17:20 CEST
Bohemia 3
Running OpenSearch in Kubernetes sounds simple — until you try to do it at scale, with high availability, zero downtime, and evolving workloads. In this talk, we draw on years of production experience operating OpenSearch clusters for SAP Cloud Logging service. We aim to share the key lessons learned and design patterns from building our Kubernetes operator. We’ll dive into how we approached...
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Speakers
avatar for Christian Dinse

Christian Dinse

Senior Software Developer, SAP SE
Christian Dinse is a Senior Software Developer at SAP, building Kubernetes operators for OpenSearch and related components for SAP’s Cloud Logging service. He is also co-author and maintainer of two open-source Node.js packages that simplify sending structured logs and OpenTelemetry... Read More →
avatar for Prudhvi Godithi

Prudhvi Godithi

Software Development Engineer, AWS OpenSearch
As a maintainer of the OpenSearch Project, my primary focus is on search performance optimization and fostering open-source growth. I maintain several key components, including the Kubernetes Operator, Terraform Provider, Helm Charts, and the community-driven OpenSearch Metrics Project... Read More →
Operating OpenSearch at Scale with Kubernetes Operators pdf
Thursday April 16, 2026 16:40 - 17:20 CEST
Bohemia 3
  Operating OpenSearch
  • Presentation Slides Attached Yes

16:40 CEST

Getting Started With OpenSearch Development - Andrew Ross & Saurabh Singh, AWS
Thursday April 16, 2026 16:40 - 17:20 CEST
Bohemia 2
Are you interested in contributing to OpenSearch but unsure where to begin? This 30-minute presentation provides a practical roadmap for developers looking to make their first contribution to the OpenSearch GitHub project. We'll start by exploring the OpenSearch repository structure and architecture, helping you understand how the codebase is organized across its core components. You'll learn how...
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Speakers
avatar for Andrew Ross

Andrew Ross

Principal Engineer, AWS
OpenSearch maintainer and Principal Engineer at AWS
avatar for Saurabh Singh

Saurabh Singh

Software Development Manager, AWS OpenSearch

Thursday April 16, 2026 16:40 - 17:20 CEST
Bohemia 2
  Search & Apache Lucene

17:20 CEST

Search Party
Thursday April 16, 2026 17:20 - 19:20 CEST
Main Foyer
Join us for an evening of networking at the OpenSearch Party! Connect with industry friends while visiting sponsors and indulging in tasty treats. It’s the perfect setting to reconnect with colleagues and make new acquaintances in a relaxed and welcoming atmosphere.
Thursday April 16, 2026 17:20 - 19:20 CEST
Main Foyer
  Breaks + Networking + Special Events
 
Friday, April 17
 

08:00 CEST

Light Breakfast
Friday April 17, 2026 08:00 - 09:00 CEST
Main Foyer

Friday April 17, 2026 08:00 - 09:00 CEST
Main Foyer
  Breaks + Networking + Special Events

08:00 CEST

Registration + Badge Pick-up
Friday April 17, 2026 08:00 - 16:00 CEST
Main Foyer

Friday April 17, 2026 08:00 - 16:00 CEST
Main Foyer
  Registration + Badge Pick-up

08:00 CEST

Coat + Bag Check
Friday April 17, 2026 08:00 - 17:30 CEST
Studio A

Friday April 17, 2026 08:00 - 17:30 CEST
Studio A
  Registration + Badge Pick-up

09:00 CEST

Keynote: Bianca Lewis, Executive Director, OpenSearch Software Foundation, The Linux Foundation
Friday April 17, 2026 09:00 - 09:15 CEST
Bohemia 2

Speakers
avatar for Bianca Lewis

Bianca Lewis

Executive Director, OpenSearch Software Foundation

Friday April 17, 2026 09:00 - 09:15 CEST
Bohemia 2
  Keynote Sessions

09:15 CEST

Sponsored Keynote: AI-Driven Deployment and Monitoring Across Federated Cloud-Edge Sites - Giampaolo Conti, AI Engineer & Benedetto Ginestra, Software Engineer, Adeptic Reply
Friday April 17, 2026 09:15 - 09:30 CEST
Bohemia 2
The IPCEI-CIS program is shaping the next wave of European cloud-edge innovation by enabling secure and sovereign digital infrastructures. In this context, Adeptic Reply demonstrates how natural language can be transformed into a fully structured deployment request. We built an open AI powered engine capable of structuring requests being able to be executed on federated cloud-edge sites, composed...
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Speakers
avatar for Benedetto Ginestra

Benedetto Ginestra

Software Engineer, Adeptic Reply
Software Engineer working with modern technologies to build impactfulsystems. His experience includes challenging domains such as personal mobility enhancement, where technology can directly improve people’s independence and quality of life. He currently contributes to the 8ra initiative... Read More →
avatar for Giampaolo Conti

Giampaolo Conti

AI Engineer, Adeptic Reply
ICT Engineer graduated from Politecnico di Torino, with a solid background incomputer engineering and advanced expertise in AI and machine learning. Currently an AI Engineer at Adeptic Reply, contributing to Europe’s digitalsovereignty by developing cutting‑edge AI solutions within... Read More →
Friday April 17, 2026 09:15 - 09:30 CEST
Bohemia 2
  Keynote Sessions

09:30 CEST

Break
Friday April 17, 2026 09:30 - 09:55 CEST
Main Foyer

Friday April 17, 2026 09:30 - 09:55 CEST
Main Foyer
  Breaks + Networking + Special Events

09:30 CEST

Solutions Showcase
Friday April 17, 2026 09:30 - 17:00 CEST
Main Foyer

Friday April 17, 2026 09:30 - 17:00 CEST
Main Foyer
  Solutions Showcase

09:55 CEST

Unified Performance Observability in OpenSearch: Integrating Workload Management and Query Insights - Lindsay Chen & Emily Guo, Amazon Web Services
Friday April 17, 2026 09:55 - 10:15 CEST
Bohemia 3
In this talk, we present the integration of Workload Management (WLM) and Query Insights (QI) in OpenSearch to provide workload-aware query performance insights. By treating WLM group information as a first-class attribute in Query Insights records, operators can filter, group, and analyze top queries in the context of workload isolation. We’ll demonstrate how this integration enables clearer...
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Speakers
avatar for Lindsay Chen

Lindsay Chen

Software Engineer, Amazon Web Services
Lindsay is a Software Engineer on the OpenSearch Search team at Amazon Web Services.
avatar for Emily Guo

Emily Guo

Software Engineer, Amazon
Emily is a software engineer on the OpenSearch team, focusing on query performance analysis and observability, with contributions to Query Insights and Query Insights Dashboard.
Friday April 17, 2026 09:55 - 10:15 CEST
Bohemia 3
  Search & Apache Lucene

09:55 CEST

Using Native CPU Vectorized Instructions for 60% Speedup on Lucene's KNN Vector Search - Shubham Chaudhary, Amazon
Friday April 17, 2026 09:55 - 10:35 CEST
Bohemia 1
Single Instruction, Multiple Data (SIMD) is a key feature of modern CPUs, allowing a single instruction to process multiple data elements in parallel. For large-scale vector search workloads, fast dot-product computation is crucial for low-latency, high-throughput semantic search. In this talk, we’ll share our experience accelerating Lucene’s vector search using native SIMD on ARM CPUs (AWS...
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Speakers
avatar for Shubham Chaudhary

Shubham Chaudhary

Software Development Engineer, Amazon
Shubham is an Apache Lucene Committer and Software Engineer at Amazon Search, working on building and scaling the core search engine powering Amazon's product search. He joined Amazon in 2020 and has nearly 5 years of experience developing large-scale information retrieval systems... Read More →
NATIVE SIMD pdf
Friday April 17, 2026 09:55 - 10:35 CEST
Bohemia 1
  Search & Apache Lucene
  • Presentation Slides Attached Yes

09:55 CEST

Partner Roundtable
Friday April 17, 2026 09:55 - 11:05 CEST
Bohemia 2
The Partner Roundtable is a great way to interact with OpenSearch leadership and have an open dialogue about the project. We will discuss strategy, challenges and opportunities, community and collaboration, future trends, training and enablement, and project growth. And of course, you are encouraged to openly exchange ideas and experiences, ask questions, share your thoughts, and engage in...
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Friday April 17, 2026 09:55 - 11:05 CEST
Bohemia 2
  Partner Roundtable

10:45 CEST

CANCELLED: The "Open" SOC: Architecting a Free Security Lab for 10,000 Students - Nikita Verma, Independent & Harshita Varma, juspay
Friday April 17, 2026 10:45 - 11:05 CEST
Bohemia 1
The biggest barrier to entering the cybersecurity field isn't talent; it's the cost of tools. Proprietary SIEMs (Security Information and Event Management) are expensive, leaving students with "theory" but no "practice." As a community leader who has mentored over 10,000 aspiring engineers, I realized we needed a better way. This session explores how we used OpenSearch to build a scalable,...
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Friday April 17, 2026 10:45 - 11:05 CEST
Bohemia 1
  Security Education & Community Development

10:45 CEST

Sharding 2.0: Unlocking Infinite Search Scalability in OpenSearch - Vikas Bansal & Paras Jain, Amazon Web Services
Friday April 17, 2026 10:45 - 11:05 CEST
Bohemia 3
Search systems are hitting a wall. Static sharding causes hotspots, slow queries, and costly overprovisioning. But what if your search infrastructure could evolve in real time - splitting, scaling, and optimizing itself on the fly? We present a cutting-edge dynamic shard topology in OpenSearch that redefines how scalability and search efficiency coexist. Inspired by distributed systems principles...
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Speakers
avatar for Vikas Bansal

Vikas Bansal

Senior Software Engineer @ Amazon, AWS OpenSearch, Amazon
Senior Software Engineer with 12+ years of experience, currently driving online shard split for scalable search in AWS OpenSearch. Key contributor to OpenSearch Serverless launch and achieved 70% boost via async S3 multipart upload. Built a Hystrix-style circuit breaker in Go. Past... Read More →
avatar for Paras Jain

Paras Jain

SDE III, Amazon Web Services
Working with the OpenSearch Indexing Team with a focus on scale, performance and operational resiliency. Building Serverless for AWS OpenSearch.
In place Shard Splitting Europe pptx
Friday April 17, 2026 10:45 - 11:05 CEST
Bohemia 3
  Security Education & Community Development
  • Presentation Slides Attached Yes

11:15 CEST

The Forbidden Index: How We Turned OpenSearch Into a Privacy-Preserving Superhero - Unnati Mishra, Independent & Akshat Khanna, Angel One
Friday April 17, 2026 11:15 - 11:55 CEST
Bohemia 1
GDPR. HIPAA. CCPA. Red tape? Not anymore. We’ll showcase how we transformed OpenSearch into a privacy-aware analytics engine using tokenization, dynamic data masking, and a custom plugin that auto-redacts PII before indexing. Ever seen a dashboard where every number is differentially private? You will. We’ll also debate the ethics of search in a post-Roe world and open-source our “privacy...
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Speakers
avatar for Unnati Mishra

Unnati Mishra

Software Engg, Independent
As a Cloud Native & Platform Engineer, I am passionate about optimizing developer experience and scaling Kubernetes ecosystems. I have been an active member of the open-source community since 2019 and have secured top spots in various hackathons. I enjoy public speaking and connecting... Read More →
avatar for Akshat Khanna

Akshat Khanna

SDE 2, Angel One
Akshat Khanna is currently working as SDE 2, building High Performance Trading Platform at Angel One and previously worked as MTS 2 at VMware Tanzu. He has been working on Kubernetes solution for the edge and also actively contributing to open-source. He has good experience of developing... Read More →
OpenSeachCon EU 2026 compressed pdf
Friday April 17, 2026 11:15 - 11:55 CEST
Bohemia 1
  Analytics + Security + Observability
  • Presentation Slides Attached Yes

11:15 CEST

Upcoming Changes for the OpenSearch Index Authorization Mechanisms - Nils Bandener, Eliatra
Friday April 17, 2026 11:15 - 11:55 CEST
Bohemia 2
The current index authorization model in OpenSearch has a few quirks and weaknesses; these will be mostly noticeable when working in OpenSearch Dashboards or similar applications with users which have only limited access to indices. Thus, if you do not take care and forget to flip certain switches, you will encounter quite a few "Forbidden" errors in OpenSearch Dashboards. Over the past year, we...
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Speakers
avatar for Nils Bandener

Nils Bandener

Software Architect, Eliatra
Freelance software architect with long track record in security and infrastructure software. Interested in finding optimal solutions which combine broad functionality with a user-centric view. Track record of many years in security software via collaborations with Search Guard and... Read More →
index authz opensearchcon europe 2026 pdf
Friday April 17, 2026 11:15 - 11:55 CEST
Bohemia 2
  Operating OpenSearch
  • Presentation Slides Attached Yes

11:15 CEST

Boosting OpenSearch Performance: Lucene Bulk Collection and gRPC Search in Action - Abdul Muneer Kolarkunnu & Carlos Rolo, NetApp Instaclustr
Friday April 17, 2026 11:15 - 11:55 CEST
Bohemia 3
Join us to explore the latest performance improvements in OpenSearch, highlighting the integration of Lucene’s bulk collection API and enhancements to the gRPC Search API. This session will dive into how bulk collection optimizes aggregation execution, delivering measurable gains across analytical workloads by batching operations and reducing computational overhead. We will also cover the...
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Speakers
avatar for Abdul Muneer Kolarkunnu

Abdul Muneer Kolarkunnu

Software Developer, NetApp InstaClustr
I am a passionate open-source developer actively contributing to OpenSearch, now mainly in to ml-commons. I contributed to other projects like OpenSearch core, Security and Cross Cluster Replication. I presented in OpenSearchCon Europe and India last year(2025) . Also, I am an OpneJDK... Read More →
avatar for Carlos Rolo

Carlos Rolo

Principal Open Source Engineer, NetApp
Boosting OpenSearch Performance pdf
Friday April 17, 2026 11:15 - 11:55 CEST
Bohemia 3
  Search & Apache Lucene
  • Presentation Slides Attached Yes

12:05 CEST

The Lucene Scalpel: Tuning Low-Level Segments for Multi-Lingual Concurrency - Divyanshu Mishra, Independent
Friday April 17, 2026 12:05 - 12:25 CEST
Bohemia 1
As European search applications scale, they face a unique challenge: maintaining high-concurrency relevance across multi-lingual datasets. When an index grows to 25GB+, standard Lucene merge policies often lead to "Segment Fragmentation," causing significant latency spikes in k-NN search. This session moves beyond basic vector implementation to perform "surgery" on the underlying Lucene engine. We...
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Speakers
avatar for Divyanshu Mishra

Divyanshu Mishra

AI & DevOps Enthusiast, Independent
With 7.6 years of experience in IT, Divyanshu Mishra has worked with organizations such as Capgemini, Tietoevry, 66degrees, and is currently with ShellSquare Softwares. His expertise spans cloud computing, DevOps, and containerization technologies including Kubernetes and Docker... Read More →
divyanshu opensearchcon2026 17April pdf
Friday April 17, 2026 12:05 - 12:25 CEST
Bohemia 1
  Search & Apache Lucene
  • Presentation Slides Attached Yes

12:05 CEST

Road To Maintainership: Shaping OpenSearch's Future - Varun Bansal, AWS
Friday April 17, 2026 12:05 - 12:25 CEST
Bohemia 2
OpenSearch is welcoming but the path from first PR to maintainer can feel opaque. This session provides a practical, step-by-step playbook for contributing to OpenSearch and growing as a trusted maintainer. Learn where to start (repos, good-first-issue), how to pick right-sized work, set up your environment, align with coding and testing norms, and craft high-signal PRs that are easy to review....
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Speakers
avatar for Varun Bansal

Varun Bansal

Sr. Software Engineer, AWS
Varun Bansal is a Software Engineer at Amazon OpenSearch Service. With 10 years of experience in software development and cloud technologies, he is passionate about developing and improving the OpenSearch Service, helping customers harness the power of open-source search and analytics... Read More →
avatar for Raghuvansh Raj

Raghuvansh Raj

SDE III, Amazon
Friday April 17, 2026 12:05 - 12:25 CEST
Bohemia 2
  Security Education & Community Development

12:05 CEST

The OSS-ential Understanding of Community Health and Metrics - Ijeoma Onwuka, Independent
Friday April 17, 2026 12:05 - 12:25 CEST
Bohemia 3
Open source powers most of today’s technology, yet many people still judge a project only by visible activity. The problem is that activity does not always reflect real health. A project can look busy while struggling behind the scenes. It can also look quiet while staying stable and strong. This talk explores the gap between what we see on the surface and what a community is actually...
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Speakers
avatar for Ijeoma Belinda Onwuka

Ijeoma Belinda Onwuka

Community Manager, Independent
Ijeoma Onwuka is an experienced Community Manager with over 3 years of building thriving communities for tech startups and non-profits. She currently leads programs at Scandium Systems Limited, creating engaging spaces for developers, technical writers, and tech enthusiasts.

Passionate about open source, she actively contributes to projects like OpenSSF, DevRel Foundation, CHAOSS, and UNICEF, focusing on the intersection of technology and community... Read More →
The OSS ential Understanding of Open Source Community Health and Metrics.pptx pdf
Friday April 17, 2026 12:05 - 12:25 CEST
Bohemia 3
  Security Education & Community Development
  • Presentation Slides Attached Yes

12:25 CEST

Lunch
Friday April 17, 2026 12:25 - 13:35 CEST
Moravia 1-3

Friday April 17, 2026 12:25 - 13:35 CEST
Moravia 1-3
  Breaks + Networking + Special Events

13:35 CEST

CANCELLED: Designing High Throughput Log Observability With OpenSearch - Shramish Kafle, KfW Bank
Friday April 17, 2026 13:35 - 14:15 CEST
Bohemia 3
Logs are the foundation of most observability platforms, but they are also where OpenSearch clusters fail first. Shard explosion, uncontrolled mappings, slow queries, and rising storage costs are common outcomes of poorly designed log workloads. This session focuses on a single, concrete problem: how to design and operate OpenSearch for high-throughput log observability in production. Drawing...
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Friday April 17, 2026 13:35 - 14:15 CEST
Bohemia 3
  Analytics + Security + Observability

13:35 CEST

Writable Warm: Breaking the Read-Only Barrier in OpenSearch Tiering - Sandeep Kumawat, Harshita Kaushik & Shubh Sahu, AWS Opensearch
Friday April 17, 2026 13:35 - 14:15 CEST
Bohemia 1
Cost-effective data tiering in OpenSearch has traditionally meant moving older indices to warm storage that is optimized for density rather than mutability. In practice, this comes with no write support and intrusive migration workflows that rely on forced segment merges, serial processing, and heavy CPU and IO usage—frequently impacting production workloads and operational stability. In this...
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Speakers
avatar for Shubh Sahu

Shubh Sahu

Software Development Engineer 2, AWS Opensearch
Shubh Sahu is a Software Development Engineer II at Amazon OpenSearch Service. With 2.5 years of experience in building distributed systems and storage solutions, he focuses on enhancing the scalability and reliability of OpenSearch, enabling customers to efficiently leverage open-source... Read More →
avatar for Sandeep Kumawat

Sandeep Kumawat

Software Development Engineer II, Amazon Web Services OpenSearch Services
Sandeep Kumawat is a Software Development Engineer II at Amazon OpenSearch Service with 2.5+ years of experience building and operating large-scale distributed systems. He works on core OpenSearch internals, focusing on scalability, reliability, and performance of storage and indexing... Read More →
avatar for Harshita Kaushik

Harshita Kaushik

Software Development Engineer, Amazon Web Services
Harshita is a Software Developer at Amazon Web Services. She has contributed to building scalable and reliable systems to help customers leverage open-source search and analytics effectively. 
WritableWarm OpenSearchConEurop2026 pdf
Friday April 17, 2026 13:35 - 14:15 CEST
Bohemia 1
  Operating OpenSearch
  • Presentation Slides Attached Yes

13:35 CEST

Fine-tuning Neural Sparse Model for Domain Specific Data From an Existing OpenSearch Index - Aswath Srinivasan & Cedric Pelvet, Amazon Web Services
Friday April 17, 2026 13:35 - 14:15 CEST
Bohemia 2
This is the sequel talk to the earlier OpenSearchCon talk on the topic “Budget Friendly Semantic Search With Neural Sparse Search”. This follow up talk we will explain shortcomings such as 1/ pre-trained lack the domain knowledge 2/ off-the-shelf-domain-specific-sparse-model are either expensive/proprietary or non-existent Level 300-400 talk covering, 1/ Intro to Neural Sparse Search 2/...
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Speakers
avatar for Aswath Srinivasan

Aswath Srinivasan

Senior Search Engine Architect, OpenSearch @ AWS
Aswath Srinivasan is a Senior Search Engine Architect at Amazon Web Services currently based in Munich, Germany. With over 18 years of experience in various search technologies, Aswath currently focuses on OpenSearch. He is a search and open-source enthusiast and helps customers and... Read More →
avatar for Cedric Pelvet

Cedric Pelvet

Principal Specialist Solutions Architect, Amazon Web Services
Cédric Pelvet is a Principal Specialist Solutions Architect at AWS, focusing on AI and near-realtime distributed systems for data like OpenSearch, Kafka and Flink.
Friday April 17, 2026 13:35 - 14:15 CEST
Bohemia 2
  Search & Apache Lucene

14:25 CEST

Scaling Welfare With Open Source: How NAV Migrated To Managed OpenSearch - Dmitry Kan, Aiven & Hans Kristian Flaatten, Norwegian Government
Friday April 17, 2026 14:25 - 15:05 CEST
Bohemia 2
The Norwegian Labor and Welfare Administration (NAV) manages 1/3 of Norway’s state budget. Supporting their "product-first" paradigm for 20,000 employees required a shift from legacy monoliths to a centralized, self-service observability stack. NAV partnered with Aiven to migrate their logging infrastructure to a managed OpenSearch environment. Aiven has been a strategic partner of NAV by...
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Speakers
avatar for Hans Kristian Flaatten

Hans Kristian Flaatten

Platform Engineer, Norwegian Government
CNCF Abassasor, Google Developer Expert (GDE) for Cloud, Grafana Champion and Platform Engineer at the Norwegian Labor and Welfare Administration (NAV) working on NAIS - a platform built to increase development speed by providing the best experience to build, run and operate appl... Read More →
avatar for Dmitry Kan

Dmitry Kan

Product Director, Search, Aiven
Dmitry is a Product Director at Aiven, leading managed OpenSearch service. Since 2010, he has specialized in search (Lucene, Solr, Elasticsearch), previously co-owning TomTom’s planet-scale map search and building the technology behind AlphaSense. At Silo.AI, he led NLP and web-scale... Read More →
Scaling Welfare with Open Source How NAV Migrated to Managed OpenSearch pdf
Friday April 17, 2026 14:25 - 15:05 CEST
Bohemia 2
  Operating OpenSearch
  • Presentation Slides Attached Yes

14:25 CEST

Building a Modern Search Engine: The Road Ahead - Eric Pugh, OpenSource Connections
Friday April 17, 2026 14:25 - 15:05 CEST
Bohemia 1
OpenSearch 3 was the first version released under the OpenSearch and Linux Foundations aegis and represented the evolution of the technology into a true open source project.   Now we have a new challenge, delivering the best search solution in a market place that is rapidly changing. In this talk I will share the recently published roadmap for OpenSearch for 2026 and go into how this roadmap...
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Speakers
avatar for Eric Pugh

Eric Pugh

Co Founder, OpenSource Connections
Eric Pugh is the co-founder of OpenSource Connections. Today he helps OSC’s clients, especially those in the ecommerce space, build their own search teams and improve their search maturity, both by leading projects and by acting as a trusted advisor.
He is an active maintainer o... Read More →
Friday April 17, 2026 14:25 - 15:05 CEST
Bohemia 1
  Search & Apache Lucene

15:05 CEST

Break
Friday April 17, 2026 15:05 - 15:30 CEST
Main Foyer

Friday April 17, 2026 15:05 - 15:30 CEST
Main Foyer
  Breaks + Networking + Special Events

15:30 CEST

CANCELLED: How To Do Deep Contextual Tracing of Agentic Decisions With OpenSearch - Amandeep Singh, Welzin
Friday April 17, 2026 15:30 - 15:50 CEST
Bohemia 3
AI agents rely on LLM reasoning or vector similarity to decide and choose tools. But these approaches lack deterministic control, explainability and low-latency guarantees. In real production systems, agents need a fast and reliable way to decide which tool to invoke based on structured rules and historical context. With this, Agentic observability has emerged as a critical discipline in 2026,...
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Friday April 17, 2026 15:30 - 15:50 CEST
Bohemia 3
  Analytics + Security + Observability

15:30 CEST

From Logs To Signals: Rethinking System Monitoring With OpenSearch - Shruti Chaturvedi, Independent
Friday April 17, 2026 15:30 - 15:50 CEST
Bohemia 2
Most production monitoring follows the same path: metrics fire an alert, engineers search logs for context, and human reasoning becomes the bottleneck. A global p95 alert triggers, and 10–15 minutes later someone realizes the issue is limited to ap-south-1. Metrics and logs are tightly coupled through manual toil. This session proposes a simple shift: logs detect first. Structured JSON logs...
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Speakers
avatar for Shruti Chaturvedi

Shruti Chaturvedi

DevOps Engineer, Independent
Shruti is a Cloud Engineer who builds bridges—from Git to GPU, from microservices to machine learning. A founding engineer turned DevOps specialist, she has architected multi-cloud systems on AWS and GCP, built self-service developer platforms with Terraform and ArgoCD, and instrumented... Read More →
logs as signals opensearchcon 26 pdf
Friday April 17, 2026 15:30 - 15:50 CEST
Bohemia 2
  Analytics + Security + Observability
  • Presentation Slides Attached Yes

15:30 CEST

Teaching OpenSearch To Read YAML: Finding Broken Infrastructure Before It Breaks - Unnati Mishra, Independent
Friday April 17, 2026 15:30 - 15:50 CEST
Bohemia 1
Every infrastructure outage tells the same story: a YAML mistake years in the making, hiding in plain sight until production burns. Teams patch symptoms, not causes because today's tools treat manifests as dumb text. This talk reveals how OpenSearch becomes your infrastructure's immune system: a semantic search engine that understands Kubernetes YAML intent, not syntax. We transform manifests...
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Speakers
avatar for Unnati Mishra

Unnati Mishra

Software Engg, Independent
As a Cloud Native & Platform Engineer, I am passionate about optimizing developer experience and scaling Kubernetes ecosystems. I have been an active member of the open-source community since 2019 and have secured top spots in various hackathons. I enjoy public speaking and connecting... Read More →
Teaching OpenSearch To Read YAML Finding Broken Infrastructure Before It Breaks pdf
Friday April 17, 2026 15:30 - 15:50 CEST
Bohemia 1
  Operating OpenSearch
  • Presentation Slides Attached Yes

16:00 CEST

Fluent Bit & OpenSearch: The Power Couple of Open Source Observability - Patrick Stephens, Fluent Bit Maintainer
Friday April 17, 2026 16:00 - 16:40 CEST
Bohemia 1
In the world of cloud-native observability, the "Golden Signal" is only as valuable as the pipeline that carries it. To build a truly vendor-neutral, scalable observability stack, look to Fluent Bit for high-performance telemetry routing and OpenSearch for robust search and analytics. This session dives into why these two projects form the "Power Couple" of the open-source ecosystem. One excels at...
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Speakers
avatar for Patrick Stephens

Patrick Stephens

Co-Founder, Telemetry Forge
K8S, Golang, C/C++ backend, infra and DevOps highly cleared engineer for startups and defence

Over 20 years experience in software engineering, mostly in the defence domain at Thales. The last few years of this were focused on transformation first to containers then Kubernetes.

Aft... Read More →
OpensearchCon 2026 Fluent Bit & Opensearch The Power Couple of Open Source Observability pdf
Friday April 17, 2026 16:00 - 16:40 CEST
Bohemia 1
  Analytics + Security + Observability
  • Presentation Slides Attached Yes

16:00 CEST

Caching for Speed: Practical Performance Optimization in OpenSearch & Lucene - Sagar Upadhyaya & Ankit Jain, Amazon Web Services
Friday April 17, 2026 16:00 - 16:40 CEST
Bohemia 2
Caching is essential for achieving low latency and high throughput in search systems, yet it’s often misunderstood or misused. OpenSearch and Lucene provide multiple caching layers—such as the request cache, field data cache, and Lucene query cache—each designed for different workloads and access patterns.In this talk, we break down how OpenSearch caches work, when they help, and common...
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Speakers
avatar for Sagar Upadhyaya

Sagar Upadhyaya

Software engineer at AWS Opensearch, Amazon Web Services
Sagar is a Software Engineer working on Amazon OpenSearch Service. He is an active contributor to the OpenSearch Project, primarily focused on search performance and resiliency-related features.
avatar for Ankit Jain

Ankit Jain

Lucene Committer | OpenSearch Maintainer | AWS OpenSearch, Amazon
Ankit Jain is a Software Engineer on the Amazon OpenSearch Service team, leading performance and scalability initiatives for search infrastructure. He is an active maintainer and committer for the Apache Lucene and OpenSearch projects, with hands-on experience operating large-scale... Read More →
Friday April 17, 2026 16:00 - 16:40 CEST
Bohemia 2
  Search & Apache Lucene

16:00 CEST

Unlocking Next-gen Semantic Search With OpenSearch 3.x - Pietro Mele & Lucian Precup, Adelean
Friday April 17, 2026 16:00 - 16:40 CEST
Bohemia 3
Search has evolved from matching tokens to understanding intent, but the new challenge is doing it at scale, with high precision and low latency. In this session, we define the "State of the Art" for OpenSearch 3.x by diving into its most advanced retrieval and optimization capabilities. We will move beyond basic k-NN to showcase specific ranking techniques, including Radial Search for precise...
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Speakers
avatar for Pietro Mele

Pietro Mele

Software engineer, Adelean
Italian, adopted by France not long ago, I am a constant learner, dedicated to computer science and discovery—whether uncovering solutions or gaining insights.
avatar for Lucian Precup

Lucian Precup

CTO, Adelean
Lucian Precup is the CTO of [all.site](https://all.site/) - the collaborative search engine developed at [Station F](http://stationf.co) in Paris. With his colleagues at [Adelean](http://adelean.com), Lucian develops solutions for indexing, searching and analyzing data. Lucian regularly... Read More →
Unlocking Next gen Semantic Search With OpenSearch 3.x pdf
Friday April 17, 2026 16:00 - 16:40 CEST
Bohemia 3
  Search & Apache Lucene

16:50 CEST

Keynote: Closing Remarks - Kris Freedain, Senior Community Manager & Patti Juric, Senior Marketing Content Manager, OpenSearch Project
Friday April 17, 2026 16:50 - 17:00 CEST
Bohemia 2

Speakers
avatar for Kris Freedain

Kris Freedain

Senior Community Manager, OpenSearch Project
Kris Freedain (he/him) is the Senior Community Manager for the OpenSearch Project, OpenSearch Software Foundation, and technical steering committee. He is also an OpenSearch Ambassador. He has decades of experience in tech, but finds connecting people to be the most fulfilling part... Read More →
avatar for Patti Juric

Patti Juric

Senior Marketing Manager, Content & Partner Strategy, OpenSearch Project
Patti Juric is Senior Marketing Content Manager for the OpenSearch Project, where she leads content, events, and partner strategy. She serves on the OpenSearch Software Foundation Marketing Committee and chairs the Program Committee for the Linux Foundation's Observability Summit... Read More →
Friday April 17, 2026 16:50 - 17:00 CEST
Bohemia 2
  Keynote Sessions
 
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Thursday, April 16
Friday, April 17
Bohemia 1
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Main Foyer
Moravia 1-3
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  • Analytics + Security + Observability
  • Breaks + Networking + Special Events
  • Keynote Sessions
  • Operating OpenSearch
  • Partner Roundtable
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  • Search & Apache Lucene
  • Security Education & Community Development
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