# Default Job Posting (external) at Supercell

Supercell is hiring a Default Job Posting (external) in Helsinki, Finland. Level rates it Builds AI ●●●●; you can [apply on Level](https://jobsbylevel.com/go/75d007b9-e44b-423e-845a-3fd235ee3b3a?utm_medium=ai-agent).

AI Level 4, AI centrality 90 out of 100. Helsinki.

## Details

- Company: [Supercell](https://jobsbylevel.com/companies/supercell)
- AI level: AI Level 4 (score 90 out of 100)
- Location: Helsinki
- Posted: October 13, 2026
- Apply: https://jobsbylevel.com/go/75d007b9-e44b-423e-845a-3fd235ee3b3a?utm_medium=ai-agent

## Prepare for this job

The job page lists 4 likely interview questions for this offer, with a CV checklist: https://jobsbylevel.com/jobs/default-job-posting-external-at-supercell-12be4c

## Description

Our AI team is looking for an individual who is exceptional at the applied end of the craft: taking modern models and turning them into features and tools that hold up in production, at Supercell scale, under real deadlines. The challenge at the centre of this role is the distance between a demo and a product. A model that works in a notebook is not a feature that works for hundreds of millions of players, or a tool a game team trusts with their daily work. Help us Close that gap: the evaluation that tells you it's actually good, the latency and cost envelope that makes it viable, the failure modes you find before players do, and the plumbing that makes it boring to operate. We're not looking for someone who wants to train a frontier model. We're looking for someone who gets unreasonable results out of the ones that exist. We are looking for someone to build and ship: AI features in live games, and the internal tools that give superpowers to Supercellians. Some of that work will take you inside a game or central team for a while, close enough to their craft to build the right thing with them. In our team, you'll work closely with our AI Platform Engineers, AI/ML engineers, Clients Programmers, Cloud Engineers. You’ll also collaborate with other teams including Data, QA, Engine and game teams. What You'll Be Doing Build and ship AI features and systems end to end into live games and internal tools, at production quality and under real deadlines. Do the applied engineering that makes AI work in practice. Own evaluation as a first-class deliverable. Write and maintain the benchmarks, evals, and regression suites that tell you whether something is genuinely good, across the modalities you're working in. Fine-tune, adapt, and distill models where it pays off, and have the judgment to know when a better prompt, better retrieval, or a smaller model beats training anything. Make sound trade-offs on inference, including on-device where it matters, against real parameter, latency, and battery targets, without losing the feel players expect. Take on the harder applied problems, such as making autonomous agents reliable and accurate enough to trust with real work. Work close to game and central teams, sometimes embedded with them for a stretch, and build things that stay in use after you move on. Mentor our more junior AI/ML engineers through code review, pairing, and design discussion, and raise the technical bar around you. Stay at the frontier by reading the literature and following the major conferences, and bring back what is genuinely useful. What You Have Strong, current command of modern generative methods at the applied level: you know what today's models are actually good at, where they break, and how to build reliably on top of them. A track record of shipping LLM or generative AI applications that real users used, in production, not prototypes. We value this far above a publication record. Real software engineering depth. You write code others can maintain, and you own things in production rather than handing them off. Hands-on experience writing and maintaining benchmarks and evaluation frameworks, ideally across more than one modality. Practical fine-tuning and model adaptation experience, and the judgment to know when not to reach for it. Sound judgment on inference trade-offs under tight compute, latency, and cost constraints, including local or on-device deployment. The ability to work from broadly defined goals, set your own objectives, and drive work forward without waiting to be handed a spec. High EQ and credibility with makers. You can sit inside a protective, high-craft team and earn their trust fast. A generous mentor to less experienced engineers, with high ownership, comfort taking risks and learning from failure, and the humility to do excellent work with kindness. Would Be Nice if You Also Have Experience with agent frameworks, orchestration, or evaluation tooling at production scale. Game industry experience,

The description is cut here. Read the full offer: https://jobsbylevel.com/jobs/default-job-posting-external-at-supercell-12be4c

Source: https://jobsbylevel.com/jobs/default-job-posting-external-at-supercell-12be4c

## Cite this page

Level. https://jobsbylevel.com/jobs/default-job-posting-external-at-supercell-12be4c.

Get job alerts: https://jobsbylevel.com/newsletter