AI/ML Engineer

The role

You will build and ship AI features and systems into live games and internal tools. You will perform applied engineering, manage evaluations, and fine-tune models to work at production scale.

What you will do

• Build and ship AI features and systems end to end into live games and internal tools.
• Do applied engineering that makes AI work in practice.
• Own evaluation as a first-class deliverable by writing and maintaining benchmarks and regression suites.
• Fine-tune, adapt, and distill models.
• Make trade-offs on inference against parameter, latency, and battery targets.
• Solve applied problems like making autonomous agents reliable and accurate.
• Work closely with game and central teams, sometimes embedded with them.
• Mentor junior AI/ML engineers through code review, pairing, and design discussion.
• Stay at the frontier by reading literature and following major conferences.

Required qualifications

• Strong, current command of modern generative methods at the applied level.
• Track record of shipping LLM or generative AI applications in production.
• Real software engineering depth.
• Hands-on experience writing and maintaining benchmarks and evaluation frameworks.
• Practical fine-tuning and model adaptation experience.
• Sound judgment on inference trade-offs under compute, latency, and cost constraints.
• Ability to work from broadly defined goals and drive work forward.
• High EQ and credibility with makers.
• Ability to mentor less experienced engineers with high ownership and humility.

Nice to have

• Experience with agent frameworks, orchestration, or evaluation tooling at production scale.
• Game industry experience, or a real appreciation for mobile.
• Experience working alongside a platform or infrastructure team as an internal customer.

Benefits

• Relocation support from a dedicated mobility team and partners.

About the company

Supercell is a games company from Helsinki, Finland, with offices in San Francisco, Seoul, Shanghai, and London. They make games like Hay Day, Clash of Clans, Boom Beach, Clash Royale, and Brawl Stars.