Thomas de Jong

Building reliable backend systems in Go and Python.

From running a company to building backend systems.

Before becoming an engineer, I co-founded and ran an audiovisual production company for 10 years. That background shapes how I work: I think about the operational and business context behind technical decisions, not just the code itself.

Since 2022 I've been building backend systems in Go and Python across telecom, government, and finance — working with microservices, AWS, and Kubernetes in production environments serving hundreds of thousands of users.

Skills

  • Go
  • Python
  • REST APIs
  • PostgreSQL
  • AWS & Terraform
  • Kubernetes & Docker
  • CI/CD (GitHub Actions, GitLab)
  • Prometheus & Grafana

Projects

  • AI-Assisted Subsidy Platform

    Built the Go backend for a platform that helps businesses find and apply for subsidies. Designed APIs, set up CI/CD pipelines, and deployed infrastructure with monitoring and alerting.

  • clientip

    Open-source Go library for secure client IP extraction in net/http services, with trusted proxy validation and optional Prometheus metrics.

  • Cloud-Native Infrastructure

    Hands-on work with Kubernetes operations and modern infrastructure patterns — networking, deployments, and observability.

  • More on GitHub

    Open-source contributions and smaller experiments.