Juani De los Santos
Software Engineer
I build complex, scalable systems with Next.js, NestJS and AWS. My industrial engineering background shapes how I work: break the complex problem down, then ship the simple solution.
NowFrontend at GeoActio, building EstacionAR at night.
Experience
- Frontend Engineer · GeoActio2025 — NowPublic transport ticketing for Spain. Multi-brand theming and end-to-end purchase flows with Next.js.
- AI Lead Engineer · Crombie2025Led the Center of Excellence designing AI agents and workflows. Vercel AI SDK, AWS Bedrock, Langchain.
Beyond code
When I'm not coding, I train. This year I set out to run the Buenos Aires Half Marathon, so my weeks are split between the gym and increasingly long runs.
Longest run: 12.9 km — 61% of the way to 21K
AugNovFebMaykm / week
62 km in the last 4 weeks · 7 runs · 322 km this year
Contact
Interested in working together, or just want to talk frontend and AI?
Get in touch