Head of Data Science

Company: Cognify Search
Apply for the Head of Data Science
Location: London
Job Description:

Head of Data Science

Salary: Up to £125k + bonus

Location: London (Hybrid)

This is a newly created leadership role, designed to bring focus, structure, and strategic direction to an already established ML function, while also shaping a growing GenAI product capability.

You will lead a team responsible for production machine learning systems powering core customer experiences, including recommendations, personalisation, and search.

Key Responsibilities

  • Lead and evolve a production ML function (recommendations, search, personalisation)
  • Own the Data Science roadmap and prioritisation of model investment
  • Build and scale generative AI capability across product features
  • Define best practices for model evaluation, quality, and responsible AI
  • Partner with Engineering and MLOps on deployment and operationalisation
  • Mentor and develop a team of Data Scientists

What We’re Looking For

  • Experience leading Data Science / ML teams in a product-led business
  • Strong background in production machine learning systems
  • Exposure to generative AI / LLM-based product development
  • Strong technical judgement and ability to operate strategically
  • Experience working cross-functionally with Product and Engineering

If this sounds like something you’d be interested in, feel free to reach out for a confidential chat: daniel@cognifysearch.com

Unfortunately, this role does not offer sponsorship!

Posted: April 26th, 2026