Alexandre Castro

Software Engineer specialised in Backend and DevOps, with several years of experience in QA Automation.

What I do

Infrastructure as Code

Terraform-managed infrastructure on AWS and GCP, at three different companies (Productboard, Neurons, Caliber).

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CI/CD and reliability

I've been building pipelines and test infrastructure since 2017, starting with a startup's very first CI setup.

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Backend and APIs

Python (Django, FastAPI) and PostgreSQL. At Neurons I owned a public API end to end, from architecture to docs.

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AI infrastructure

I run the infrastructure behind an Agentic RAG assistant at Caliber, plus the data ingestion that feeds it.

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  • 9 years

    in software engineering

  • 7

    start-ups I've built infrastructure for

  • €1M+

    API ARR at Neurons, up from €250K

What I'm interested in

Fully remote roles within the EU, working on infrastructure, platform or backend systems.