• Build and maintain native layers: Kotlin with JNI, Swift with C interop, C# with P/Invoke for Unity.
• Design and maintain the API our internal product teams build on, including backward compatibility.
• Handle builds, packaging, and releases across all supported platforms.

We are seeking an experienced Senior Mobile SDK Developer to create and maintain our cross-platform solution. The ideal candidate should have a deep understanding of mobile technologies, network protocols, and data security, as well as significant experience in developing SDKs for critical systems., * 5+ years of overall engineering experience; 1+ year of Rust in production (yes, one year - we care about engineering maturity, not just Rust tenure).

• Confident with async, threads, synchronization, queues, and deadlock debugging.
• Practical FFI experience: extern “C”, JNI, memory management across the language boundary.
• Experience with local databases, including version-to-version migration and resilient-first / data-preservation-first design.
• Comfortable building under real constraints: limited RAM, disk, and battery.
• At least one or two platform stacks - Android, Apple, Unity, or Windows (not all four; the architecture is documented and patterns are consistent, so you’ll pick up the rest on the job).
• Experience shipping and maintaining an SDK or library used by other teams.
• English at a level comfortable reading/writing technical documentation.
• A macOS machine to work from (required for building the Apple targets - no way around this one).

If your Rust is under a year but you’ve got real C++, C, or Zig experience - reach out, let’s talk.

Nice To Have

• uniffi or similar binding generators.
• CI/CD and package publishing experience (SwiftPM, Maven, UPM).
• In-app purchases (Play Billing, StoreKit).
• Game development experience.
• Mobile binary size optimization.

• 100% payment of vacations and sick leave [20 days vacation, 22 days sick leave], medical insurance.
• A team of the best professionals in the games industry.
• Flexible schedule [start of work from 8 to 11, 8 hours/day].
• L&D center with courses.
• Self-learning library, access to paid courses.
• Stable payments.

The Recruitment Process

CV review * Interview with TA * Interview with Full-stack Developer * Final Interview with CTO * Job offer

If you share our goals and values and are eager to join a team of dedicated professionals, we invite you to take the next step.

Burny Games is a Ukrainian product and publishing game development company focused on mobile puzzle games that blend creativity with analytics. Our mission is to challenge players’ minds daily by delivering a consistently high-quality gameplay experience.

Founded in 2022, Burny Games has grown into a team of 100+ specialists, with hubs in Kyiv, Ukraine, and Lisbon, Portugal.

Key Highlights

• 65+ million downloads across the company’s portfolio

• 2 Employer in Ukrainian GameDev (DOU, 2026)

• Fastest-growing mobile game studio in Ukraine (DOU, 2025)
• Full in-house pipeline: development, live ops, analytics, and publishing
• A deeply data-driven approach to product and team development