

¶ Statement
Twenty years building for the web, with the last twelve focused on startups and the teams that acquire them. Strong experience with TypeScript, React, Next.js, and Node, plus marketplaces, outdoor mapping, governance products, and permissions for AI agents.
Now
At Civic I work on the layer between AI agents and external tools, with scoped permissions, guardrails, and audit trails.
Available
Available for new projects
Senior product engineer, remote US
§ II — Selected Work
5 projects


§ III — About
I'm Arnaldo, a senior product engineer working remotely from the US. I help teams ship first versions, improve older systems, and keep UX clear under real traffic.
Recent work spans AI permissions, customer facing auth, marketplaces, auction retail, outdoor mapping, and public blockchain products.
I care about clear information architecture, useful typography, small dependency trees, explicit naming, and shipping on agreed dates.
Stack
TypeScript · React · React Router · TanStack · Next.js · Node · Postgres · Tailwind · Figma · MedusaJS · Vercel AI SDK · Web3
Recognized
FATMAP (Strava) · Foraged (YC) · Civic (Series B) · Tezos ($232M crowdsale)
§ IV — Contact