5 months ago
London, United KingdomSenior
Responsibilities
- Design, build, and ship machine learning models that optimize messaging across push, email, and in-app channels
- Plan and run A/B experiments balancing conversion, engagement, retention, and reachability
- Contribute to reinforcement learning systems optimizing long-term user outcomes
- Partner with product managers, data scientists, and engineers to define success measures
- Own the full ML lifecycle from data and modeling through deployment, monitoring, and iteration
- Integrate ML models with upstream systems, domain value signals, and opportunity generation frameworks
- Explore AI-assisted development tools that can accelerate experimentation and delivery
Requirements
- Strong experience building and deploying machine learning models in production environments at scale
- Experience translating business problems into machine learning solutions and evaluating trade-offs with cross-functional partners
- Experience with complex optimization problems such as ranking systems or multi-objective decision-making
- Hands-on experience with PyTorch and distributed systems such as Ray or similar frameworks
- Deep understanding of experimentation and the ability to design reliable tests with interacting metrics
- Ability to analyze results using approaches such as causal inference or metric decomposition
- Experience with or curiosity about reinforcement learning and long-term optimization systems
- Ability to work across disciplines, navigate ambiguity, and help shape strategy and direction
Benefits
- Flexible work arrangement with some in-person meetings and the option to work from home
- Role based in London or Stockholm
- Accessible interview process with reasonable accommodations available
Tech Stack
Categories
About Spotify
Spotify builds a global audio streaming platform for listeners and creators, offering on-demand music and podcasts across mobile, desktop, and connected devices. The business runs a freemium model: an ad-supported free tier and a paid Premium subscription, plus creator tools like Spotify for Artists and podcast publishing. Founded in 2006 and headquartered in Stockholm, it is a publicly traded company on the NYSE (SPOT) serving consumers and rights holders worldwide.