Radu is a Software Engineering at Vespa.ai. He has been in the search space for many years, focused on Elasticsearch, Solr, OpenSearch, and, more recently, Vespa.ai. Radu helps users with both the relevance and the operations side of retrieval. He enjoys education in all its forms (training, blog posts, books, conferences, etc.) and actively contributes to all of them. Previously worked at Sematext and is author of the book Elasticsearch in Action (First Edition)