Doug Turnbull is an expert in search technology and relevance engineering, currently serving as Principal Engineer at Daydream, where he builds hybrid search systems combining lexical and vector retrieval, and develops LLM-driven quality programs for e-commerce search. Previously, he led machine-learning-driven search initiatives at Reddit, significantly improving search relevance through Learning to Rank methods. Doug also advanced e-commerce search at Shopify and served as CTO at OpenSource Connections. He co-authored the influential book Relevant Search (Manning, 2016) and created popular open-source tools, including Quepid and the Elasticsearch Learning to Rank plugin. He regularly speaks at industry conferences, making search relevance accessible to engineers.

Nick Zadrozny is a founder-engineer and search technology expert who pioneered hosted search-as-a-service solutions. As founder and CEO of One More Cloud, Inc., he launched Websolr in 2009 as the first cloud-hosted Solr service and followed with Bonsai in 2012, the first hosted Elasticsearch service on the market. His Austin-based company has remained self-funded, profitable, and independent since its inception, now managing over 20,000 clusters and serving billions of requests daily for organizations ranging from startups to established enterprises.