Senior React Native / Full-Stack Engineer — Web3 & FinTech. In IT since 2019.
I build mobile apps for Web3 and FinTech — and everything around them: backend, infrastructure, blockchain integrations.
- Non-custodial multi-chain crypto wallet (Cosmos, EVM, TON, Tron): in-app Web3 browser, WalletConnect, built-in exchange working directly with Uniswap/SushiSwap smart contracts, Ledger and Keystone hardware-wallet support without third-party SDKs, own implementation of transaction signing and wallet-data encryption.
- B2B token platform (Solana, BSC, Tron) — designed and shipped end to end as Founding Engineer / Technical Lead: React dashboard, Node.js/Go/Rust microservices, Kubernetes, isolated-wallet security architecture.
- Play-to-earn game on TON — multiplayer turn-based strategy with fully on-chain gameplay: items are NFTs, currency is TON, login via wallet transaction signing.
- Custom native modules for React Native: Bluetooth receipt-printer driver, route-building engines in Java/Objective-C, chart rendering, kiosk mode — if RN can't do it out of the box, I write the native side myself.
- Mobile: React Native (bare & Expo), TypeScript, Redux / MobX, native iOS/Android (Swift, Objective-C, Kotlin, Java), watchOS (Swift)
- Web & Backend: React, Next.js, Node.js, Express, Go, Rust, microservices
- Blockchain: EVM, Cosmos, TON, Solana, Tron · wallets, transaction signing, WalletConnect, DeFi, smart contracts
- Infra: Kubernetes, Docker, CI/CD, ClickHouse, MongoDB, PostgreSQL, Redis, shell scripting
- AI: LLM features in products, multi-agent dev workflows, automated PR review, semantic code search, local LLMs
Open-source tools for everyday life, Telegram bots that kill routine, on-chain analytics tools.