From keynotes to deep dives, explore the full lineup of talks from OpenSearchCon EU 2025, covering search, observability, AI, security, and more.

OpenSearchCon EU 2025 Highlights

Keynote: Welcome & Opening Remarks – Dagney Braun, Jochen Kressin & Eric Pugh

How To Start Contributing To OpenSearch Without Any Prior Knowledge on OpenSearch – Abdul Muneer Kolarkunnu, NetApp Instaclustr

Dive Deep on OpenSearch’s Vector Search – Jon Handler, Amazon Web Services & Yuye Zhu, Amazon

From Zero To Maintainer: How We Implement Generation of Code for 4 Clients (JS, Ruby, Python, Java) – Torekeldi Niyazbek, DEMETRA SYSTEMS

Where’s the Auto in Auto-Instrumentation? A Look at Current Automation Strategies with OTel – Joshua Lee, Altinity

Real-Time Analytics UX: Designing OpenSearch Interfaces for Security and Observability Teams – Xenia Tupitsyna, AWS; Laura Pavlov, Amazon Web Services; Aparna Sundar, OpenSearch Project

Managing Over 1,000 OpenSearch Clusters in a Private Cloud – Sun Ro Lee, LINE

Unlocking Insights from Multimodal PDFs Using OpenSearch and Vision-Language Models – Praveen Mohan Prasad & Mingshi Liu, AWS

Effortless Collaboration With OpenSearch Workspace: A Hands-On Demo – Abhay Baiju & Shambhavi Sarin

Unifying Diverse Logs in Big Data Systems for Seamless Analysis and Action With OpenSearch and LLMs – Satej Sahu, Zalando SE

Enhancing Application Observability With OpenSearch and OpenTelemetry – Karsten Schnitter, SAP SE

Building a Secure and Scalable LLM Infrastructure With OpenSearch – Pedro Guimaraes & Peter De Sousa

OpenSearch Indexes Made Easy: Terraform, Python, and a Sprinkle of Magic – Yulia Barabash & Laysa Uchoa, Nordcloud, IBM Company

Transforming Data Aggregation in OpenSearch: Achieving 100x Faster Performance – Ankit Jain & Sandesh Kumar, AWS

Diving in the World of Vectors for Semantic Search With OpenSearch – Parth Pandit & Amar Yashlaha

Exploring Tiered Caching in OpenSearch: Optimizing Performance With Multi-Layered Caching Strategies – Ankit Jain & Sagar Upadhyaya, AWS

Building a Communication Platform With OpenSearch for Optimized Text and Multi-Modal Data – Satej Sahu, Zalando SE

Keynote: The State of OpenSearch User Groups: Building a Global Community – Kris Freedain

Analytics Performance at Scale: The OpenSearch Star Tree Index Journey – Bharathwaj G & Sandesh Kumar, Amazon Web Services

Uber’s Innovations in OpenSearch for a Cloud Native, Serverless Future – Pallavi Priyadarshini, Amazon Web Services & Yupeng Fu, Uber

Mastering and Monitoring Our Smart Home With OpenSearch – Pietro Mele & Benjamin Dauvissat, Adelean

Cross-Reference Code Mapping System With OpenSearch – Irine Benoy & Ismael Hassane, Oracle

Powering up OpenSearch: A Journey of How OpenSearch Became Faster at Indexing – Mohit Godwani

Creating an API Definition for OpenSearch Retroactively – Pranav Garg & Sachet Jayaram Alva, Amazon

Enhancing Security in OpenSearch With Dynamic Authentication Methods – Sakshi Nasha, Cohesity

PutOpenSearchVector QueryOpenSearchVector: Use Case of Two Python NiFi Processors for OpenSearch – Vincenzo Lombardo, Seacom

Building an Open Source Observability Stack from Raw Telemetry – Joshua Lee, Altinity

Smarter Data, Smarter Decisions: Machine Learning Made Simple With OpenSearch – Seema Saharan

Security Monitoring of OpenSearch With OpenSearch – Nils Bandener, Eliatra & Craig Perkins, Amazon

Supercharging OpenSearch for RAG: Lessons From a Large-scale GenAI Deployment – Nabeel Janjua, HDI AG & Akarsha Sehwag, Amazon Web Services

Beyond Similar: Building Diverse Search With MMR – Joinal Ahmed, ntg & Nikhil Rana, Google Cloud

RAG From Text and Images Using OpenSearch and Vision Language Models – Jakub Zavrel & Batu Helvacioglu, Zeta Alpha

Optimizing OpenSearch Cluster Performance With Dynamic Sharding Strategy – Aswath Srinivasan & Robert Hoffmann, Amazon Web Services

Unlock NextGen Agentic Product Search With ML and LLM Innovations of OpenSearch – Praveen Mohan Prasad, AWS

Overcoming Challenges in Building a Multi-Tenant Logging Platform for Kubernetes – David Riepl & Maximilian Scharizer, RISE GmbH

How To Search 1 Billion Vectors in OpenSearch Without Losing Your Mind or Wallet – Fernando Rejon Barrera, Zeta Alpha

Keynote: Closing Remarks – Nate Boot, Amazon Web Services

Unconference Session: DevOps is a Foreign Language (Or Why There Are No Junior SREs) – Joshua Lee

Unconference Session: Keeping Data Silos Truly Isolated – Sakshi Nasha, Cohesity

Unconference Session: Optimising Search Relevance Using Querqy – Rene Kriegler

Unconference Session: Query Understanding With LLM – Praveen Mohan Prasad, AWS

Unconference Session: Search QPS – Aswath Srinivasan, AWS

Unconference Session: Test Search on Any Website With Quepid and Some Janky Javascript – Charlie Hall

Unconference Session: The Power of Data Visualizations – Karsten Schnitter, SAP

High Availability Architecture With OpenSearch – Gaurav Bafna & Varun Bansal, Amazon

A Tool for Eyeballing: Better Than NDCG? – Stavros Macrakis & Eric Pugh

Recreating Production Workload Behavior Is an Art, Not a Science – Ian Hoang & Rishabh Singh

Data Prepper or Logstash: Helping You Choose Your Ingestion – David Venable & Krishna Kondaka

Using OpenSearch With OpenTelemetry To Solve Real World Scenarios – Shambhavi Sarin & Abhay Baiju

Maximizing OpenSearch Cluster Performance: A Comprehensive Benchmarking Approach – Govind Kamat & Mike Oviedo, Amazon

Improve Auction House Search With Vector Capabilities: Bedrock or SageMaker Serverless Inference – Mikhail Chumakov, Actum Digital

Multi-tenant Workload Management in OpenSearch – Kaushal Kumar & Kunal Khatua, Amazon

FinOps for Observability: Reining in Hidden Monitoring Costs Across Distributed Teams – Amir Jakoby

OpenSearch Dashboards: Past Progress and Future Roadmap – Nate Boot, Amazon Web Services

Develop for Core Performance – Samuel Herman, DataStax

Testing, Testing, Testing! – Darshit Chanpura & Derek Ho, Amazon

Building the Future of Search: Hybrid Approaches With Neural Sparse and Dense Vectors – Aditya Soni, Forrester & Seema Saharan, Autodesk

Building a Resilient, Petabyte-Scale Logging Platform With OpenSearch – Mark Kavanagh & Parth Pandit