London Data & ML Lead — Build & Own Applied AI

Dex; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Dex is building out its London data and ML presence, leading the function from day one and growing a team from a single hire to ten within a year. You will remain a hands-on technical contributor, reviewing designs and code while shaping the roadmap and technical strategy.

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

Qualifications

• Senior IC background in ML leadership.
• End-to-end ownership of applied-ML domains.
• Proven ability to drive business outcomes with technical work.
• Experience hiring and coaching a small, high-ownership team.

Responsibilities

• 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 with direct impact on company outcomes.

Skills

Senior IC background

Applied ML

End-to-end ownership

Hiring & coaching

Job description

Dex is building out its London data and ML presence, leading the function from day one and growing a team from a single hire to ten within a year. You will remain a hands-on technical contributor, reviewing designs and code while shaping the roadmap and technical strategy.

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