Building high-traffic SaaS platforms for 4+ years — multi-tenant dashboards, real-time UIs, payment flows and Web3. 7,500+ commits across 30+ production repositories.
- Frontend architecture at scale — multi-tenant SaaS dashboards, micro-frontend patterns, design systems shared across 5+ products.
- Real-time & performance — WebSocket leaderboards, virtualized tables/maps (1M+ records), LRU caching, optimistic updates with TanStack Query.
- Payments — Stripe (3D Secure, subscriptions), PayPal, Bizum, Oxapay, FinCode across multiple countries.
- Web3 — wallet auth (Privy, MetaMask, WalletConnect), smart contracts, NFT minting, off-chain signing (ethers.js / viem).
- Healthcare — frontend for a real DICOM/PACS medical imaging system.
| Project | What it is | Stack |
|---|---|---|
| nest-backend-template | Production-ready NestJS backend — clean/hexagonal architecture, auth, RBAC, Prisma | NestJS · TS · Prisma · Docker |
| nest-microservices-template | Microservices backend — NATS + Nx, gateway + 4 services, Swagger, guided tour | NestJS · NATS · Nx |
| phase_system_admin | Admin dashboard for an electromobility platform — exports, data tables | Next.js · TanStack Query |
| cupet-watcher | Fuel-station watcher + analytics/prediction, email alerts | Next.js · TS · Automation |
| flip-dynasty-usa | Bilingual B2B corporate site for a US client | Next.js · i18n |
Open to remote roles · Open to relocation (EU) · 🌍 English (B2) / Spanish (native)