Backend developer · C# / .NET · AWS & Azure

Samuel Torres Fernandes

I design and build distributed systems — from the shape of the domain to the infrastructure that keeps them running in production.

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About

I am a backend developer based in São Paulo, Brazil. At Robbu I build APIs and integrations in C#/.NET across the Azure ecosystem. Before that, at GID WEB, I led the architecture of the product refactor: I moved it to event-driven communication, reorganised the Node.js modules around DDD and set up the CI/CD pipelines. Earlier still, I spent nearly two years running Tenenge's infrastructure — networks, servers and virtualisation.

That infrastructure background is what lets me decide with the whole system in view. Network, cost and failure modes weigh in alongside the domain model. It is the difference between a design that works in the slide deck and one that survives production. I am taking that further in a postgraduate programme in .NET Systems Architecture at FIAP.

Experience

  1. Mar 2026 — now

    Backend developer · Robbu

    APIs and integrations in C#/.NET across the Azure ecosystem, covered by automated tests.

  2. Jul 2025 — Jun 2026

    Backend developer · GID WEB

    Architecture of the product refactor: event-driven communication, Node.js modules following DDD, AWS architectures for new projects, database and log-storage design, CI/CD pipelines and automated tests.

  3. May 2023 — Jan 2025

    IT analyst · Tenenge

    Responsible for company infrastructure: local networks, servers, virtualisation, asset inventory and network security.

  4. Oct 2021 — May 2023

    Apprentice · Ribeiro Caram

    End-user technical support and day-to-day office IT routines.

Education

  • Postgraduate, .NET Systems Architecture · FIAP2026 — 2027
  • Development with Spring Boot · Senai São Paulo2025
  • Technologist, Systems Analysis and Development · USCS2023 — 2025
  • Technical degree, Sales and Marketing · Senai São Paulo2021 — 2023

Certifications

Latest posts

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Contact

Got a system to design, scale or untangle? Drop me a line. Happy to talk opportunities and collaboration too — email or LinkedIn is the quickest way to reach me.

torresfernandessamuel@gmail.com