Site Lead, Data & ML (up to £240k)

Dex; Greater London; Presencial; GBP 140.000 - 210.000; Jornada completa

Descripción de la vacante

Dex is partnering with a fast-growing European tech company to build its first dedicated data and ML presence in London. You’ll lead from day one, growing a team from a single hire to ten within a year, while staying hands-on with design reviews and model work.

The role focuses on reward optimisation, real-time personalisation, and offer ranking, translating business aims into technical plans that drive measurable outcomes.

Formación

• Senior/leadership level experience in data/ML.
• Experience driving end-to-end ML projects.
• Ability to hire and coach a small high-ownership team.

Responsabilidades

• Define roadmap and technical strategy for London data/ML.
• Drive ML initiatives: reward optimization, real-time personalization, offer ranking.
• Build and scale a high-ownership team from scratch.
• Contribute through design, code, and model reviews.
• Translate business priorities into actionable technical plans.

Conocimientos

Senior/Staff/Principal level

Applied ML ownership

Hiring & coaching

Ambiguity handling

Descripción del empleo

This role is with one of Dex's trusted partner companies. We work closely with their teams to truly understand their culture, goals, and what they're looking for, so we can match you with the right opportunity and give you context about the role before you commit to a process.

The role

This is a profitable, bootstrapped platform rewarding 80 million users globally. They're one of Europe's fastest-growing companies, building out their first dedicated data and ML presence in London.

You’ll lead that function from day one, growing a team from a single hire to ten over the next year. This isn’t a distant management role: you’ll stay a genuine technical contributor, reviewing designs and code, joining model reviews, and staying in the problems. The work is applied and commercial: reward optimisation, real-time personalisation, offer ranking. You’re building the ground the team will stand on, not just tuning something that already runs.

The work

• Lead the London data and ML function, defining its roadmap and technical strategy.
• Drive applied ML initiatives across reward optimisation, real-time personalisation, and offer ranking.
• Build and scale a high-ownership team from scratch, setting the technical bar and interview process.
• Contribute technically through design reviews, code reviews, and model reviews.
• Translate business priorities into technical plans, ensuring direct impact on company-level outcomes.

What You Bring

• Strong individual contributor background at senior, staff, or principal level; you want to keep building.
• End-to-end ownership of an applied-ML domain: recommendation, ranking, marketplaces, adtech, or similar.
• Clear examples of business outcomes your technical work directly drove.
• Comfort defining solutions in ambiguous environments, rather than following existing playbooks.
• Experience hiring, coaching, and setting the technical bar for a small, high-ownership team.

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