SDK Technical Lead

Hypercell Games is a mobile game studio behind some of the most downloaded hybrid-casual and puzzle titles on the market.

Our games reach millions of players worldwide.

What you can definitely know about us is:

• Sand Balls game – 350 M+
• Rope and Balls – 53 M+
• Freaky Stan – 41 M+
• Garden Balls – 21 M+
• Unpuzzle – 21 M+
• Run&Gun – 13 M+

We’re looking for a Unity SDK Technical Lead to take end-to-end ownership of the HyperKit SDK (our core Unity SDK).

• Take end-to-end ownership of the HyperKit SDK, our core Unity SDK;
• Develop and execute the SDK roadmap, deliver new features and improvements;
• Maintain and manage SDK release channels
  Implement and expand automated testing and quality gates (unit tests, integration harnesses, CI/CD checks);
• Manage updates and integrations of third-party vendor SDKs (ads, attribution, analytics);
• Create clear and comprehensive documentation (migration guides for breaking changes, release notes, and integration guidelines);
• Provide high-quality support to developer studios through documentation and direct communication.

• Strong Unity and C# engineering background with proven mobile production experience (shipped titles);
• Hands-on experience in building, maintaining, and shipping Unity SDKs, plugins, or packages (experience with Unity Package Manager - UPM is a strong plus);
• Deep understanding of iOS and Android integration specifics: native bridges (Java/Kotlin, Objective-C/Swift), dependency management, and build pipeline realities;
• Proven ability to own and ensure SDK quality through unit testing, test automation, regression prevention, and safe release practices;
• Extensive experience in debugging complex production issues in mobile games: crashes, ANRs, performance regressions (especially startup time), and device-specific problems;
• Excellent written communication skills for creating technical documentation, migration guides, and clear release notes;
• A mindset of high ownership: ability to run the SDK area independently, be proactive, accountable, and require minimal supervision.
  
  Nice-to-Have Requirements:
   
• Practical experience with native mobile development (Swift/Obj-C for iOS, Kotlin/Java for Android);
• Familiarity with mobile analytics & attribution systems (e.g., Adjust), ad mediation platforms (e.g., AppLovin MAX), and in-app purchasing (IAP) flows;
• Experience with performance profiling and optimization in Unity (startup time, memory usage, rendering);
• Understanding of data pipelines and the impact of SDK events (e.g. on downstream ETL processes and data dashboards);
• Familiarity with CI/CD practices and tools for Unity mobile projects (automated builds, testing, release pipelines);
• Basic knowledge of security and privacy considerations, such as user consent flows and GDPR compliance.

• The opportunity to work on games played by millions of players;
• Implement your bold ideas;
• Paid vacation;
• Support for professional development (training, coaching, and more);
• Opportunity to grow and develop with the company;
• Supportive and warm working atmosphere within the team.