Hello!

I'm Mark Williams

Search relevance expert with deep experience in ranking optimization, query understanding, and AI-powered search solutions.

Get in Touch

Working Experience

2013 - 2014 Search Relevance Consultant

Worked with e-commerce startups to build their initial search infrastructure, implementing Solr and Elasticsearch-based solutions with custom relevance tuning pipelines.

2014 - 2016 Senior Search Engineer

Led search relevance optimization for a major retail platform, developing query understanding systems and learning-to-rank models that improved conversion by 40%.

2016 - Present Search Relevance Lead at Cognitivi

Directing search relevance strategy for enterprise clients, building evaluation frameworks, AI/ML ranking models, and query analysis pipelines that deliver measurable improvements.

My Skills

Relevance Tuning
Query Analysis
AI/ML Models
Search Evaluation

Contact Me

  • 4444 Geary Blvd #202, San Francisco, CA 94118
  • info@cognitivi.ai
  • +1 (877) 51 - SEARCH
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