Android Developer

We’re Tonkeeper, the leading non-custodial wallet in the TON ecosystem, helping users and developers discover dApps and DeFi tools. Tonkeeper Team has also created TON API, the largest platform on TON, and Tonviewer, a top explorer for tracking transactions, tokens and NFTs. With Tonkeeper Mobile, Tonkeeper Pro, TON API and Tonviewer, we make it easy to explore and grow on The Open Network.

Our team has plenty of experience in building products for mass adoption, and high-load services, as well as in applying innovative technologies in cryptography and blockchain.

We’re looking for an experienced Android Developer to join our core product team. You will take ownership of the Tonkeeper Android application, working across the full stack from UI to core libraries and integrations. This role plays a key part in delivering a secure, fast, and reliable wallet experience for millions of users in the TON ecosystem.

Responsibilities:

• Own the full stack of Android app development — from UI to internal libraries and APIs.
• Develop and maintain high-performance Android applications using Kotlin.
• Implement cryptographic protocols and integrate internal and external SDKs.
• Collaborate closely with a small, experienced team to improve performance, security, and usability.
• Participate in code reviews and contribute to technical documentation.
• Help define and enforce best practices in Android development and application architecture.

Requirements:

• 2+ years of experience in Android development.
• Strong expertise in Kotlin and modern Android development practices.
• Experience with Android architecture components and performance optimization.
• Solid problem-solving skills and ability to work independently end-to-end.
• High attention to detail and commitment to clean, maintainable, and secure code.
• Bonus: experience with blockchain technologies or cryptography.

Why it is a fantastic opportunity:

• Non-bureaucratic management that focuses on results.
• Regular performance reviews to assess your progress.
• Compensation for medical expenses.
• 20 working days of paid vacation annually.
• 7 days off per year.
• 14 days of paid sick leave to support your health and recovery when needed.
• Access to internal conferences, courses and corporate events.