Full-Stack Developer · Systems Engineering · Rosario, Argentina

I build web products end to end: responsive UIs, reliable APIs, databases, and the deploy pipeline around them. I care about code quality, performance, security and accessibility. Lately I've been going deeper into systems work (Rust, Win32) and security-sensitive software, alongside my usual TypeScript stack.

Bilingual (Spanish/English), learning some German. Open to work and collaborations.

• Secret Store — a hosted secrets vault for apps and teams, like a password manager for .env files. Projects with environments, versioned encrypted secrets, encrypted files, shared access with roles, and an OAuth 2.1 + MCP server so coding agents can fetch secrets only after you approve them. Built with Next.js 16, ElysiaJS (typed end to end with Eden), Bun, Neon Postgres and Vercel, with envelope encryption, passkeys and a Tauri desktop shell.
• rexplorer — a fast Windows file manager in Rust that replaces Explorer's folder windows. It hosts the Windows shell namespace through plain Win32 controls, so context menus, icons, drag and drop and live updates all come from the shell. Enumerates a 100,000-file folder in about 150 ms. MIT licensed.
• CV Maker — free, open-source CV builder at free-cv.com (AGPL-3.0).

• Alquileres Temporales — vacation rental platform
• Berrini Automotores — automotive dealership site and management
• Cleat.ai — AI-powered platform
• Lotia Marketplace — marketplace
• Aural Sei Helados — ice cream shop management app

More in my portfolio: codingdiego.dev

• metadata-eraser — strip metadata from files in the browser
• nodejs-vs-elysia — Node.js vs Elysia benchmark
• next-client-hook-dynamic-bun — minimal repro for a Next.js build issue under Bun

Most of my recent work (Secret Store and client projects) lives in private repositories, so my public contribution graph understates how much I ship.

If you're hiring or want to collaborate, email me at palaciosdiegovalentino@gmail.com or find me on LinkedIn.

CV: English · Español