Data Science Manager, Supply Marketplace

London or Remote within UK

Prolific

Prolific is not just another player in the AI space—we are the architects of the human data infrastructure that's reshaping the landscape of AI development. In a world where foundational AI technologies are increasingly commoditized, it's the quality and diversity of human-generated data that truly differentiates products and models.

The Role

Prolific is building the infrastructure for high-integrity human data. Our two-sided marketplace connects leading AI companies, researchers, and enterprises with a global participant pool. As demand for reliable human data grows, the challenge is not just scaling supply, but doing so in a way that keeps the participant ecosystem healthy, representative, trusted, and sustainable over time. We’re hiring a Data Science Manager, Supply Marketplace to lead this space. This is a high-impact leadership role at the heart of Prolific’s marketplace. You will build and lead the team responsible for the science, models, and decision systems that shape participant marketplace health, from growth and activation to allocation, engagement, quality, and long-term retention.

What you'll be doing

• You will define the technical direction for Supply Data Science and lead the analytical and lead the roadmap for models, experiments, and decision systems that help Prolific scale participant supply responsibly.
• You will work across participant acquisition, onboarding, liquidity, matching, quality, engagement, and retention, ensuring we can meet rapidly growing demand without degrading participant experience or data integrity.
• You will partner closely with Product, Engineering, Operations, and company leadership to turn complex marketplace problems into clear scientific questions, measurable hypotheses, and scalable solutions.
• You will lead applied science work across areas such as forecasting, experimentation, causal inference, marketplace measurement, matching, ranking, allocation, optimization, and quality modelling.
• You will help build and grow a high-performing team, setting technical standards, mentoring scientists, and creating a strong culture of rigorous, practical, product-oriented science.

What you'll bring 

• We’re looking for a strong technical lead who can grow into or operate as a people manager. This could be someone taking on their first formal management role, provided they bring strong technical depth, sound judgement, and a track record of leading high-impact applied science work.
• You should have strong experience in experimentation, causal inference, statistical modelling, forecasting, marketplace science, or product analytics.
• Experience with marketplace or platform problems is highly relevant, especially where supply-demand dynamics, liquidity, matching, user behaviour, trust, or quality are central.
• Experience leading algorithmic work such as matching, ranking, optimization, allocation, quality modelling, or decision systems would be especially valuable.
• You should be comfortable setting technical direction, influencing product strategy, partnering closely with engineering, and communicating complex trade-offs to senior stakeholders.

Why this is exciting

Prolific is growing fast, and this role sits at the center of one of our most important challenges: scaling a trusted, representative participant marketplace to meet rapidly increasing demand for human data. You’ll join at a moment when the team is still small, the problem space is rich, and the opportunity to shape strategy, algorithms, and the future of the marketplace is significant.

Why Prolific is a great place to work

We've built a unique platform that connects researchers and companies with a global pool of participants, enabling the collection of high-quality, ethically sourced human behavioural data and feedback. This data is the cornerstone of developing more accurate, nuanced, and aligned AI systems.

We believe that the next leap in AI capabilities won't come solely from scaling existing models but from integrating diverse human perspectives and behaviors into AI development. By providing this crucial human data infrastructure, Prolific is positioning itself at the forefront of the next wave of AI innovation—one that reflects the breadth and the best of humanity.

Working for us will place you at the forefront of AI innovation, providing access to our unique human data platform and opportunities for groundbreaking research. Join us to enjoy a competitive salary, benefits, and remote working within our impactful, mission-driven culture.

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