Grodno City Council, Hrodna, Belarus
I am a Senior Software Developer with over 5 years of experience building high-load, secure systems at the intersection of mobile, backend, and Web3 technologies. I specialize in developing high-performance crypto wallets and decentralized applications where security, data integrity, and speed are paramount. My core strength lies in bridging high-performance system programming with mobile development. While I am a Flutter expert, I consistently extend my reach into the native layer (Kotlin, Swift) to solve critical performance or security challenges. Whether it’s implementing complex FFI interfaces or integrating deep platform-specific functionality, I ensure seamless execution between the native host and the Flutter environment. My Core Technical Edge: Web3 & Solana: Deep expertise in the Solana ecosystem, blockchain structures, and RPC protocols. Specialized in building secure, self-custody crypto wallets. Security & Data Protection: Focus on advanced data encryption and secure local storage. I actively perform security audits and vulnerability research using tools like Frida to ensure robust protection against reverse engineering and common exploits. FFI & Native Integration: Skilled in building high-performance communication bridges between Dart and native code (Rust, Kotlin, Swift). I effectively leverage native capabilities to push the hardware to its limits. Backend Architecture: Designing full-cycle systems, from microservices in Rust (Axum) and Python (FastAPI) to robust infrastructure that handles critical transaction logic. I have a proven track record of delivering end-to-end mobile and backend products—from initial architecture to production deployment—ensuring they meet the rigorous demands of the fintech and blockchain sectors. Technical Competencies: Blockchain/Security: Solana, Rust (FFI, Axum), Encryption, Frida, Vulnerability Research. Mobile: Flutter (Expert), Native Integrations (Kotlin/Swift). Backend: Python (FastAPI), GraphQL, PostgreSQL, RabbitMQ, Docker. I am passionate about decentralization and am looking for ambitious projects where I can leverage my expertise in security and performance to build the next generation of Web3 tools. Feel free to connect!
Flutter Web for a Crypto Exchange: Design and development of a high-load web application for digital asset trading. Implemented a Clean Architecture, which allowed for the isolation of business logic and the addition of testing. Rewrote legacy code using reactive programming. Ensured Unit, Widget, and Golden code coverage, which reduced the number of bugs in releases and accelerated project development. Optimized service performance under high load. Conducted regular code reviews and developed and implemented uniform development standards.
Developing a photo-sharing platform similar to a private Instagram with secure cloud storage. Working on microservices in FastAPI and Rust, integrated via RabbitMQ. Built a cross-platform Flutter app with custom media handling logic.
Building a web voice AI assistant for healthcare using Flutter Web. Designing client–server interaction via REST & WebSockets with sub-second latency. Leading backend architecture on FastAPI, PostgreSQL, Redis, RabbitMQ. Configured Linux servers, DNS, and CI/CD pipelines (Jenkins). Integrated AI streaming pipelines (OpenAI, Deepgram, Mistral, ElevenLabs).