Head of ML and AI

• Head of Machine Learning & AI
• Location: London (Hybrid – 2 days per week in office)
• Salary and Benefits: £120k + 30% Bonus

About the Role

We’re partnering with a high-growth, customer-centric digital business undergoing a significant period of transformation to find an experienced Head of Machine Learning & AI.

This is a senior leadership opportunity focused on production-grade machine learning systems that directly shape customer experience and commercial performance across one of the UK’s leading consumer platforms.

You’ll lead a team responsible for recommendation, ranking, search and personalisation systems embedded across customer journeys, while also shaping the next generation of AI-driven product experiences using LLMs and generative AI.

Working as part of the wider PDT leadership team, you’ll influence roadmap prioritisation, guide investment decisions and act as the senior authority for Machine Learning & AI capability across the business.

Key Responsibilities

• Defining the ML & AI vision and strategy across the Cards business

• Leading production ML systems across recommendations, ranking, search and personalisation

• Driving measurable commercial outcomes including conversion, engagement and AOV

• Shaping customer-facing AI capabilities including LLM-powered and generative experiences

• Setting technical direction across modelling, evaluation and ML lifecycle management

• Partnering closely with Product, Engineering and MLOps teams

• Improving scalability, observability and speed-to-production across ML systems

• Leading and developing a high-performing team of ML specialists and leaders

• Acting as the senior ML & AI authority across the wider organisation

What We’re Looking For

• Proven experience leading Machine Learning or Applied Science teams

• Strong background in production ML systems such as recommendation, ranking, search or personalisation

• Commercial ownership mindset with experience driving measurable business outcomes through ML

• Ability to influence technical direction across complex product environments

• Experience or strong interest in LLMs, generative AI and AI-powered customer experiences

• Excellent stakeholder management and communication skills

• Strong cross-functional collaboration across Product, Engineering and MLOps

Why This Role?

• Opportunity to define the future of ML & AI within a major consumer platform

• High visibility and influence across Product, Technology and Commercial leadership

• Direct ownership of customer-facing AI and ML capabilities at scale

• Work on modern AI initiatives including LLM-powered product experiences

• Lead a high-impact team within a fast-moving, innovation-focused environment

If you’re a Machine Learning leader passionate about scaling production ML systems and shaping meaningful AI-driven customer experiences, we’d love to hear from you.