Head of Data Science

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

3 days ago Be among the first 25 applicants

Direct message the job poster from Harnham

A highly innovative and growing international group is seeking a Group Head of Data Science to lead its centralised data science function. Operating at group level across five B2C-focused businesses, this is a strategic leadership role with strong senior sponsorship, a direct line into the C-suite.

The group is undergoing a data transformation journey, bringing previously siloed teams together under a centralised data model, with growing investment in AI and machine learning. You’ll be a key influencer in setting the strategic direction for Data Science & AI across the group, supporting adoption, building capability, and enabling commercial impact.

Day-to-day responsibilities include:

  • Leading a small, growing data science team operating across multiple brands
  • Acting as a strategic advisor to C-suite stakeholders, advocating for AI and data-driven decision making
  • Working closely with innovation and product teams to identify and deliver impactful ML and AI use cases
  • Supporting the rollout of an AI-powered platform that automates insights and trends from structured and unstructured data
  • Overseeing predictive machine learning initiatives and data science best practices across the group
  • Steering AI governance efforts in collaboration with a newly hired governance lead
  • Representing the data science agenda at group level and aligning teams across different countries and operating models

Candidate requirements:

  • Proven experience leading data science teams at group or enterprise level within B2C businesses
  • Experience operating at Head of / Group Head of Data Science level
  • Strong communication and stakeholder management skills, with the ability to influence at C-level
  • Background as a hands-on data scientist, with deep understanding of model development, deployment, and MLOps
  • MSc in a quantitative field required; PhD welcome but not essential
  • Familiarity with AI governance and ethical AI practices
  • Curious and up to date on GenAI technologies (either directly or via team exposure)
  • Comfortable working with varied tech stacks across Databricks, AWS, Azure
  • Experience in regulated industries, especially gambling, is a plus

Key highlights:

  • High-impact role with visibility across group leadership, including CEO, CTO, and company owner
  • Strategic ownership of AI roadmap and initiatives across multiple markets
  • Resources and buy-in to build and scale data science capability
  • Collaborative and flexible working culture with strong career development prospects

To apply or find out more:

Please submit your CV via the link or email to rosie@harnham.com

Seniority level

  • Seniority level

    Director

Employment type

  • Employment type

    Full-time

Job function

  • Job function

    Analyst, Engineering, and Management

  • Industries

    Gambling Facilities and Casinos

Referrals increase your chances of interviewing at Harnham by 2x

Sign in to set job alerts for “Head of Data Science” roles.

Machine Learning Manager – Applied ML (UK/EU)

London, England, United Kingdom 1 week ago

London, England, United Kingdom 3 weeks ago

London, England, United Kingdom 1 week ago

Head of Data Science, AI and Data Visualisation

Chiswick, England, United Kingdom 3 days ago

Head of Data – Data Science & ML Engineering

London Area, United Kingdom £130,000.00-£130,000.00 1 month ago

Director of Data Science – Opportunity in Sydney, Australia

London, England, United Kingdom 1 week ago

London, England, United Kingdom 2 weeks ago

London, England, United Kingdom 20 hours ago

London, England, United Kingdom 1 week ago

Western Europe Practice Head – Data Science (Machine Learning/Artificial Intelligence (ML/AI)

London, England, United Kingdom 2 weeks ago

London, England, United Kingdom 5 days ago

Director, Machine Learning Science – Revenue Optimization

London, England, United Kingdom 1 week ago

London, England, United Kingdom 2 weeks ago

London, England, United Kingdom 2 weeks ago

London, England, United Kingdom 2 weeks ago

Greater London, England, United Kingdom 1 week ago

Tech Lead Manager, Machine Learning – Perception

London, England, United Kingdom 1 week ago

London, England, United Kingdom 1 week ago

Manager, Data Science and Machine Learning, Audit and Assurance

London, England, United Kingdom 3 days ago

Software Engineering Manager, Machine Learning

London, England, United Kingdom 2 weeks ago

Data Scientist – Borrow Analytics Manager

London, England, United Kingdom 1 week ago

Research Director – Quantitative Research

London, England, United Kingdom 1 week ago

London, England, United Kingdom 2 weeks ago

Manager, Forward Deployed Engineering and Data Science

London, England, United Kingdom 1 month ago

We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.

#J-18808-Ljbffr…

Posted: October 1st, 2025