TON Connect is an infrastructure product that provides secure and seamless integration between wallets and decentralized applications within TON ecosystem.

Our mission is to build a standardized and scalable connectivity framework that:

• Is developer-friendly and easy to integrate with dApps.
• Supports multiple wallet providers with flexible configurations.
• Can handle millions of users efficiently.

Our goal is to enhance the infrastructure and improve the protocol with the help of talented engineers.

We are looking for a skilled Android Developer to build and enhance the TON Connect Android SDK — a core infrastructure product enabling secure and seamless interaction between wallets and decentralized applications in the TON ecosystem. With your expertise, we aim to scale the protocol, improve security and performance, and deliver a reliable experience to millions of users worldwide.

Responsibilities:

• Design, implement, and ship the Android SDK with clean public APIs and Gradle/Maven (AAR) distribution.
• Build core wallet flows: account setup/import, secure signing, send/receive, and stable dApp connections (TON Connect).
• Deliver assets & history: balances, tokens/jettons, NFTs, and accurate transaction previews/emulation.
• Ensure security, performance, and reliability across API 24+; maintain robust automated tests and a sample integration app.

Requirements:

• 5+ years Android development with Kotlin; shipped libraries/SDKs used by external apps (AAR, semantic versioning).
• Strong networking & concurrency, coroutines/Flow, long-lived connections (SSE/WebSocket-like), retry/backoff; background/lifecycle mastery.
• Offline-first persistence: Room/SQLite, schema/versioning, data caching.
• Security fundamentals: Android Keystore/StrongBox, hardware-backed keys, secure secret handling.
• Performance & quality: profiling (Android Studio Profiler), strict main-thread budgeting, unit/integration tests, CI.
• Clear technical communication in English.

Nice-to-have:

• Web3/TON exposure: mnemonics/derivation, signing, tokens/NFTs, TON Connect/WalletConnect, TonCenter v3.
• Event-driven/reliable messaging: queues, retries, idempotency, offline event stores.
• Auth UX: Biometrics (BiometricPrompt), passkeys/FIDO2 (Credential Manager), secure session design.
• Jetpack Compose components, theming, i18n; telemetry/analytics for SDKs; open-source contributions.
• Deep links/App Links and intent routing expertise.