Lead / Principal Data Science Consultant

Company: Harnham

Location: London

Posted: May 1st, 2026

Lead / Principal Data Science Consultant

Up to £120,000 + 25% Bonus + Benefits

Minimum 3 days per week on client site (Across the UK)

I’m working with a well-established consulting business that is building a new data and AI function and is looking for senior hires to help shape it from the ground up.

This role sits at the intersection of data delivery, client leadership, and business development. There is committed investment and approval to grow the team to around 10 hires, giving real scope to influence how the function is built and how work is won and delivered.

The Role

You’ll work closely with clients to identify high-impact opportunities for data science, AI, and advanced analytics, then lead those ideas through to real operational outcomes. Early on, a key part of the role will be shaping and winning work, alongside leading delivery on complex engagements.

You’ll spend a minimum of three days per week on client site, working directly with senior stakeholders and delivery teams.

What They’re Looking For

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