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scajal.dev

I build the platformsthat money and datamove through.

Tech Lead and full-stack engineer in Montevideo. Ten years across fintech, crypto and telemetry — mostly on systems that are not allowed to fall over.

Currently
CriptalaDevelopment Lead
rabbit | iotCo-Founder & CTO

How I work

AI belongs inside the process, not beside it

Most teams bolt AI onto the end of their workflow: a chat window in another tab, used for whatever felt tedious that afternoon. I have spent the last two years pushing it the other way — into specification, implementation and review, where the constraints actually live and where a wrong answer is still cheap to catch.

What changes is the shape of the work rather than its volume. Writing code stops being the bottleneck, and the bottleneck becomes deciding what is worth building and judging whether what came back is correct. Neither of those is automatable, and both are the parts I would want to be doing anyway. The acceleration comes from collapsing the distance between them.

The practical lesson has been that context beats tooling. Clear specifications, typed interfaces and documented decisions matter far more than which model is answering, because a codebase legible to a new engineer is legible to a model for the same reasons. Most of the work is making the system explain itself — which is worth doing whether or not anything is reading it.

In the loop
Claude Code, MCP, Cursor, Codex
Applied to
Specification, implementation, code review
Beyond the editor
n8n, Slack integrations, internal workflows

Before

The rest of it

  • 2020 — 2024

    BlueBoot

    Software Developer

    Enterprise business software on SAP BTP, with JavaScript on the front.

  • 2020

    Dvelop Software

    Software Developer

    Backend and frontend for Midinero, including the prepaid card recharge system and the Empresas platform.

  • 2016 — 2020

    heXa Sistemas

    Software Developer

    Internal systems for fintech and healthcare clients in GeneXus and Laravel. Home of the RFID rebuild.

BSc in Computer Science, Universidad de la Empresa, Montevideo (2017 — 2022).

Contact

Get in touch

Montevideo, UTC−3.