Mateusz Klos is a seasoned Technology Consultant based in London with 12 years of experience building reliable, production-grade systems across Python, TypeScript and full-stack environments. He excels at modernising monoliths into microservices, bootstrapping greenfield projects, and guiding architecture decisions—particularly around event-driven systems and Kubernetes-based deployments. Comfortable across backend and frontend stacks, he’s shipped projects using Django/DRF, FastAPI, React/React Native, and has practical experience with Kafka, GraphQL, Prisma and Terraform. Mateusz drives engineering discipline by championing testing, documentation and automated releases, and has a track record of turning quick scripts into reusable developer utilities that accelerate team migrations. He’s as happy digging into performance-critical code (once rewriting a zip-code neighbor search in C++ for a 2000x speedup) as he is gathering stakeholder requirements and aligning cross-functional teams. That blend of hands-on problem solving and system-level thinking makes him effective at taking ambiguous projects to robust, maintainable production.
Contributions:16 releases, 45 PRs, 166 pushes in 4 years 3 months
structarbitrarypurescript
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