René Kriegler

René Kriegler

OpenSource Connections

As Chief Strategy Officer at OSC, René is focused on technical strategy and fulfilling the needs of our clients.

René has worked in search for almost two decades, including on projects for some of the top 10 German e-commerce sites. He is co-founder and co-organiser of MICES (Mix-Camp E-commerce Search), an event that brings together the e-commerce search community each year. His technological focus is on OpenSearch, Elasticsearch and Lucene. He created and maintains the Querqy open source library for query rewriting.

Sessions

Training 1: Building Modern Search Platforms for Humans & AI

Training
14. September 2026, 09:00 - 13:00
Main Stage
Search is no longer just a product feature — it’s becoming a foundational platform that powers AI assistants, copilots, personalization engines, and internal knowledge systems. Shifting from a solid onsite search experience to a true search platform raises new questions: how should teams collaborate, what data needs to be exposed and in what form, and how do you design for both human users and AI agents at once?

Training 2: LLMs as Judges for Search Result Quality

Training
14. September 2026, 13:45 - 17:45
Main Stage
Large Language Models (LLMs) transform how we build and evaluate search systems, it’s crucial to understand how to use them effectively as “judges.” This condensed, hands-on training introduces the principles and practical techniques for implementing “LLM as a Judge” to evaluate search result quality.

Search (Re)platforming for Humans and AI

Talk
15. September 2026, 15:15 - 16:00
Main Stage
Balancing business rules, vector search, and AI evaluation is a shared challenge. Modern search systems must now serve both human and agentic users. In this talk we share grounded insights on search replatforming, API-driven tools, deterministic query governance, and the growing complexities of evaluation in the age of generative AI.