Tech Lead and full-stack engineer in Montevideo, Uruguay. Ten years building platforms that money and data move through — mostly fintech, crypto and telemetry, mostly systems that are not allowed to fall over.
Most of what I build is private, so this profile is quieter than the work. The context is at scajal.dev.
Now
- Development Lead at Criptala — crypto trading and payments. Built it from an empty repository; now own the architecture, the API and the roadmap.
- Co-Founder & CTO at rabbit | iot — LoRaWAN telemetry for farms and industrial sites. Multi-tenant from the first commit.
Working with Laravel · PHP · MySQL · TypeScript · React · Next.js · Inertia · Tailwind · Docker
Also AI inside the development loop rather than beside it — Claude Code and MCP in specification, implementation and review; n8n and Slack for the processes around them.