Roman Kagan

Search Relevance Expert. Helping businesses deliver the right results to the right users at the right time.

With deep expertise in Elasticsearch, OpenSearch, Solr, and modern NLP techniques, I help organizations transform their search experience. From query understanding and ranking optimization to building evaluation frameworks, I bring a data-driven approach to every engagement.

Whether you are struggling with poor search results, building a new search platform from scratch, or looking to incorporate machine learning and vector search into your relevance stack, Cognitivi provides hands-on consulting to get you there. Every search problem is unique, and I work closely with your team to understand your users, your data, and your goals.