pcfaktor

- Led Solana-side development of a cross-chain NFT platform for legally registered sports collectibles as real-world assets (RWA), focusing on on-chain architecture and token/NFT flows. ​- Designed and implemented Anchor programs for minting, transfers, and royalties of sports NFTs, coordinating with backend and cross-chain components. ​- Performed internal security reviews and testing of critical on-chain logic (access control, authorities, freezes, and withdrawals) to reduce risk before mainnet rollout. - Conducted a private audit of a Solana token launch platform with vesting and SOL-based fundraising. Tech: Solana, Rust, Anchor, TypeScript, SPL, Solana Web3.js, Metaplex (Core, Bubblegum, Candy Machine, Umi, Sugar, DAS API), Trident, X-Ray, Radar, Next.js, Bun, Elysia, Prisma, Docker, AWS, Supabase, GitHub Actions, Vercel, Cloudflare

- Founded and independently built Dropsome, a Solana DeFi аpp that lets users send SOL via magic-links so recipients can claim funds without having a pre-existing wallet. - Designed the full-stack architecture: Anchor-based Solana program with PDA vaults and record accounts for escrow, claim, and refund flows, plus a Next.js/TypeScript frontend and API. - Implemented a non-custodial magic-link flow using per-drop keypairs and server-side encryption of mnemonics, enabling secure claims while preserving sender refunds if links are lost. - Produced technical documentation and legal documents, and resolved visibility issues with ecosystem partners (wallets, explorers). Tech: Solana, Rust, Anchor, SPL, TypeScript, Trident, X-Ray, Radar, Next.js, Tailwind CSS, Web3.js, Docker, Vercel, GitHub Actions, Cloudflare

- Implemented a Rust backend API on AWS for an Android app with auth, user management, caching, CI/CD, and tests. - Contributed to a Web3 gaming client with EVM wallet, swap, game browser, and NFT explorer (NDA). - Built an AI writing assistant for Android/iOS with 27 languages, tone control, and in-app monetization. - Developed a cross-platform device configuration suite for VR headsets and smartphones with Windows configurator, kiosk modes, and automated deployment. - Implemented an Android WireGuard VPN client with split DNS and secure internal resource access for enterprise environments. - Designed an Android system app for an electric scooter head unit with ML Kit–based helmet recognition, telemetry UI, and Mapbox-powered navigation. - Contributed to company open-source projects as Android/backend developer and DevOps engineer, participating in discovery and architecture design, leading small teams, and mentoring engineers internally and via courses. Tech: Rust, Kotlin, KMP, Compose Multiplatform, Jetpack Compose, Coroutines, Ktor, Rocket, ML Kit, Mapbox, Firebase, Google Play Billing, Play Integrity, PostgreSQL, Redis, Docker, AWS, WireGuard, Appium, GitHub Actions

- Built a mobile app to control a Wi‑Fi photo/video birdwatching device with low‑latency Full HD streaming and real‑time monitoring. - Developed a baby wellness monitoring app with Wi‑Fi video streaming, device controls, and caregiver alerts. - Designed the data transfer and firmware update systems between prototype devices and mobile apps, enabling reliable over‑the‑air updates and smooth video playback. - Promoted engineering best practices across the team, including documentation, design reviews, coding standards, and delivery processes. Tech: Kotlin, Android NDK, Coroutines, GStreamer, Firebase, YouTube Live Streaming API