Ramon Medeiros
Software Engineer · Stockholm
I'm a backend engineer based in Stockholm. My work spans agentic AI platforms, payment systems serving European markets, distributed backends, and the cloud infrastructure underneath all of it.
I started out in virtualization and open-source systems tooling — KVM, qemu, libvirt — then moved through test automation and continuous integration, into cloud infrastructure, and on to product backends. I write about practical engineering problems and solutionson this site.
Focus
- Payments and financial systemsPayment methods across European markets, Apple Pay and Google Pay on the backend, a subscription product, in-house ledgers, and A/B pricing and fraud analytics.
- Distributed backendsMonolith-to-microservices migrations, GraphQL and REST APIs, third-party integrations, and accounting automation.
- Cloud infrastructureTerraform, Helm, and Kubernetes across AWS and Google Cloud, including backup tooling for CloudSQL and Bigtable.
- Test engineeringMoving suites from release gate into CI, cutting a Robot Framework suite from an hour to 25 minutes, and guidelines that eliminate flaky tests.
Skills
- Languages
- Golang, Python, TypeScript
- Backend
- Microservices, REST and GraphQL APIs, Apache Kafka, Temporal, event-driven and durable execution
- Infrastructure
- Kubernetes, Docker, Terraform, Helm
- Cloud
- AWS (Lambda, API Gateway, SSM, S3), Google Cloud Platform (Cloud Storage, CloudSQL, Bigtable, Identity-Aware Proxy)
- AI
- LLM evaluation harnesses, agentic backends, machine learning fundamentals
- Testing
- Selenium, Robot Framework, Python unittest/mock, API mocking, end-to-end and UI automation
- CI/CD
- Azure DevOps, Jenkins
Education
- Universidade Estadual de Campinas (UNICAMP)Bachelor's Degree, Economics — incomplete
- Fatec Americana "Ministro Ralph Biasi"Technologist, Information Security
Languages
- Portuguese
- English
- Spanish
- Swedish
Side projects
- Cheap StocksA stock screening tool that helps value investors identify undervalued stocks based on fundamental metrics.
- Find a CocktailPick the ingredients you have, see what you can mix.