Head of Machine Learning & AI in London

We’re the Moonpig Group – home to Moonpig, Greetz, Red Letter Days and Buyagift – and we’re on a mission to make people feel loved, celebrated and remembered. Whether it’s a card that gets them laughing out loud or a gift that makes their day, we help people stay close, no matter the miles. We’re proud to be leading the online gifting revolution, with brilliant products, clever tech and a whole lot of heart. Our platform makes it easy to create moments that matter – packed with personal touches and delivered with care. We’re not just about selling cards or gifts – we’re here to spread joy, spark smiles and make every celebration feel extra special. And with values that guide how we work and support one another, we’ve built a place where people (and ideas) can truly thrive. If you’re looking to make an impact, bring your spark and be part of something meaningful – we’d love to have you on the team.

We’re looking for a Head of Machine Learning & AI to define and lead how machine learning drives customer experience and commercial outcomes across Moonpig’s Cards business. This role sits within our Product, Data & Technology (PDT) team and focuses on building and scaling applied production machine learning systems. From recommendations and ranking to search and personalisation, your work will directly shape how millions of customers experience Moonpig. You’ll lead a team of machine learning specialists, owning the performance, quality and lifecycle of models in production. Alongside this, you’ll guide how we apply modern AI technologies, including generative AI and LLMs, in practical, high-impact ways across our products. As part of the wider PDT leadership team, you’ll influence roadmap decisions, shape investment priorities, and act as the senior voice for ML and AI across the Cards business.

Key Responsibilities:

• Define the vision and direction for machine learning and AI across the Cards business, identifying opportunities to improve customer experience and commercial performance.
• Lead the performance and evolution of core ML systems including recommendations, ranking, search and personalisation.
• Own model quality and lifecycle management, including evaluation, monitoring, retraining and long-term maintainability.
• Drive the development of AI-powered product features, including LLM-based and generative experiences.
• Partner with Product Management to shape the ML roadmap and prioritise high-impact initiatives.
• Set technical direction across modelling approaches, feature design and evaluation frameworks.
• Work closely with Engineering and MLOps teams to ensure ML systems are production-ready, scalable and well-supported.
• Act as the central ML authority within PDT, aligning teams around best practices and shared approaches.
• Lead, coach and grow a team of machine learning specialists, including managers and senior individual contributors.
• Influence senior stakeholders, guiding decisions and representing ML and AI in leadership forums.

About you:

• Proven experience leading machine learning or applied science teams with accountability for business impact, ideally across B2C ecommerce environments.
• Strong expertise in building and evaluating production ML systems such as recommendations, ranking, search or personalisation.
• Commercial mindset with experience owning ML systems that drive measurable outcomes like conversion, engagement or revenue.
• Ability to set technical direction and guide decisions across a broad and complex ML landscape.
• Experience with, or strong interest in, modern AI approaches such as LLMs and generative AI.
• Strong communication skills with the ability to translate technical concepts into business value.
• Experience working cross-functionally with Product, Engineering and platform teams such as MLOps.
• Track record of influencing senior stakeholders and driving alignment across teams.

What's in it for you?

We believe in empowering our team to do their best work. Enjoy:

• Competitive Pay & Bonuses: Plus, generous pension plans & staff discounts.
• Wellbeing First: Private healthcare (UK), mental health support & dog-friendly offices (London & NL).
• Flexible Working & Time Off: Generous holidays, hybrid working (1-3 days in office, depending on role/team) & up to 20 days of international working.
• Career Growth: Learning allowances, coaching & development programs.

Our Ways of Working: We trust our colleagues to do what’s right and offer flexibility to support a balance between work and life. At the same time, face-to-face office time is an important and expected part of working at Moonpig Group. We believe regular in-person working supports collaboration, alignment, and effective decision-making. Candidates will have regular and ongoing time working from the office as part of their role, which will be discussed during the recruitment process.

Moonpig Group's Commitment to Equality, Diversity, and Inclusivity: At Moonpig Group, we’re all about creating a workplace where everyone feels they truly belong. We celebrate what makes each of us unique, whether that’s our background, how we work best, or what matters most to us. From working parents who need flexible hours to neurodiverse colleagues with specific working styles, we’re here to support our people in ways that work for them. Because when you feel valued and included, you can thrive, and so can we.

We’re proud to have a number of employee-led groups driving this forward, including our LGBTQ+, Gender Balance, Neurodiversity and EMBRACE (Educating Myself for Better Racial Awareness and Cultural Enrichment) communities, plus our Group-wide EDI committee. These teams help make sure every voice is heard and every idea has a place. We know that diversity fuels creativity, innovation and connection, and that’s why we’ll keep pushing for progress. Together, we’re building a culture where everyone feels safe, supported, and free to be their brilliant, authentic selves.

If you have a preferred name, please use it to apply and share your pronouns if you are comfortable to do so. If you have any reasonable adjustment requests throughout the interview process please let us know on your application or speak to the Recruiter.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.