7+ years of engineering production systems where security and uptime are non-negotiable — decentralized cloud storage, cross-border Web3 wallets, secure billing architectures, and high-frequency data streaming. Experienced in leading cross-functional teams and bridging the gap between heavy backend infrastructure and scalable user interfaces.

Frontend → TypeScript · Vue.js · React · React Native
Backend → Golang · Node.js · NestJS · PostgreSQL · CockroachDB
Web3 → DIDs · Verifiable Credentials · DWN · Metamask Integrations

🔹 Storj · Jan 2022 – Present · Decentralized cloud storage network

• Team Lead & Core Dev: Promoted to lead a cross-functional engineering team, aligning product roadmap with daily technical execution and code reviews.
• FinTech & Billing: Owned the end-to-end user growth and billing systems integrated with Stripe.
• WebAssembly & Security: Engineered secure data-access flows by running Go-compiled WASM modules inside browser Web Workers, overcoming complex Content Security Policies (CSP).
• Infrastructure Optimization: Automated API routing using Go’s Reflect library and implemented a high-performance flight recorder via lock-free circular buffers. Led application module migrations from Vue 2 to Vue 3.
• Note: Core contributions and code reviews are driven via Storj's public Gerrit instance.

🔹 Zion Project · Sep 2022 – Jan 2023 · Peer-governed sovereign social network

• Web3 Security: Built on-device cryptographic services generating 12-word mnemonic seeds to derive DIDs and sign write operations over Decentralized Web Nodes (DWN).
• Lightning Payments: Integrated native Bitcoin Lightning Network infrastructure for instant P2P payments, automated community invoicing, and content boosting.

🔹 Blockchain.com · Apr 2022 – Jul 2022 · EVM browser wallet extension

• Team Lead: Guided the development of a secure browser extension built on Chrome Manifest V3, focusing on isolated extension-to-dApp messaging and cryptographic data handling.

🔹 Ledger · Dec 2021 – Apr 2022 · Hardware wallet companion ecosystem

• Cross-Platform: Built the core Multi-buy/Sell crypto features simultaneously for Ledger Live Desktop (React + Flow) and Ledger Live Mobile (React Native) across top payment ramps (Coinify, Moonpay).
• NFT Indexing: Engineered a fast NestJS/MongoDB scanner to parse raw blockchain events, call smart contracts, and index NFT metadata.

🔹 Affinidi & Bloom Protocol · Sep 2019 – Aug 2021 · Decentralized Identity (SSI) frameworks

• Safe-Travel App: Built a complete QR-based verification interface parsing complex nested JSON Verifiable Credentials (VC) for multi-modal travel tracking.
• R&D Chat Network: Researched the Signal protocol to prototype decentralized, secure communication nodes using Go, Metamask wallet auth, and early-stage WebAssembly network relays.

• Languages: TypeScript, JavaScript, Golang, Node.js, Python (basic), C# (basic), SQL, HTML5/SCSS
• Frameworks: Vue 2/3 (Vuex, Pinia), React (Redux, React Query, Context), NestJS, TypeORM, Knex.js
• Databases: PostgreSQL, CockroachDB, MongoDB
• Tools & Protocols: Playwright, Jest, Stripe API, AWS S3, Firebase, Vite, Web Workers, WASM

📧 vitalii.shpital@gmail.com 💼 LinkedIn 🐙 GitHub

Environmental Systems Engineer by university degree. Senior Software Engineer by choice and obsession.