Data Scientist (Search & Recommendations)

Mayflower is a technology company building highload products used by millions of people worldwide. Operating at the scale of one of the world's top-50 websites, we solve complex engineering challenges and create solutions that power real-time entertainment for a global audience.

Now we look for a Data Scientist to join our ML team

Job Responsibilities

• Search & Retrieval

  • Develop and improve retrieval pipelines for large-scale production search systems.

  • Work on candidate generation, query processing, matching, filtering, and retrieval strategies.

  • Improve search relevance, result coverage, and overall SERP quality.

  • Analyse failed searches, irrelevant results, zero-result queries, and other search-quality issues.

  • Explore lexical, semantic, behavioural, hybrid, and vector search approaches.

• Ranking & Relevance

  • Build, train, and optimise ranking models for search and recommendation systems.

  • Develop learning-to-rank solutions using behavioural, content-based, contextual, and real-time features.

  • Design ranking features based on clicks, conversions, popularity, freshness, availability, and user behaviour.

  • Evaluate ranking quality using Prec