Senior Software Engineer, Supercell ID (Client SDK)

Architect, build and ship the Supercell ID client SDK, shared code that runs inside every Supercell game across iOS, Android and other platforms.

Build player-facing account experiences embedded in our games, balancing usability, account safety and the constraints of individual games and platforms.

Lead implementation efforts: Collaborate with product managers, designers, analysts, game teams, legal teams, and more, take a software project from idea to market and into operations.

Help shape what we build, not just how we build it. Use data, feedback and firsthand experience to identify problems and turn them into product improvements.

Work directly with game teams to make integrations smooth, keep the SDK footprint small and understand the real-world problems they encounter.

Take part in the team’s client support rotation, staying close to integration issues and production problems affecting game teams and players.

Prior experience building consumer-facing mobile applications for iOS and/or Android using Swift, Kotlin, C++ or Flutter/Dart - or a mixture of those.

You understand platform constraints and application lifecycles, and can diagnose performance and runtime issues.

Willingness to learn the unfamiliar parts of our stack, and work on any part of the system.

Comfort using modern development tools, including AI coding agents, as part of your everyday work.

Experience shipping web-based user experiences. Having experience embedding them in native applications would be particularly relevant.

Experience building SDKs, libraries or other components used across multiple applications.

Experience with routine backend development as part of end-to-end feature development.

You will work from our Helsinki Studio where most of you core stakeholders and wider team members will be located. We are more in office than remote but have flexibility to work from home when needed.

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That's it about the role! Below, we've gathered some things we feel are important for you to know. Totally optional, but a highly recommended read.

Once you're ready to apply, just send us your application through the form on the bottom of the page.

Supercell is a games company from Helsinki, Finland, with offices also in San Francisco, Seoul, Shanghai, and London. You might know us as the makers of Hay Day, Clash of Clans, Boom Beach, Clash Royale, and Brawl Stars . Our mission is to create great games that as many people as possible play for years and that are remembered forever.

So, how do we make great games? By putting together the best teams and giving them the freedom and independence to succeed. And by taking risks, failing, sharing learnings , and killing lots of projects.

Independent cells and trust are at the core of our culture . But it takes more than that to make great games. We take good care of our people, providing them with the compensation, work environment, and resources they need to succeed while having fun along the way.

Here, you won’t need to focus on chasing titles or climbing ladders. Internally, our job titles don’t include prefixes like Senior, Junior, Principal, or Director. Recognition isn’t tied to your title, as it doesn't define the impact you can have around here.

Many candidates with great skills and experience second-guess themselves. The bar is high, but if this role excites you, apply! We’re here to help you succeed. Also, we're happy to learn about any specific accommodations you may need to fully engage in our recruitment process.

Wishing you all the best, The Supercell Recruitment team