Mateusz Soltysik
Software Engineer and Technical Lead, decade-plus building data-intensive systems in #Python, Go, and TypeScript. Certified AWS Professional and Google Cloud Architect.
More about me and my work.
Recent
The Bottleneck Moved: Code Review for the AI Era
·12 mins
Code review for the AI era. Five concrete shifts, anchored on the principles that didn’t change. PR template and reviewer prompt included.
Build a Saga Orchestrator in Python - From Zero to Live Dashboard
·9 mins
A hands-on guide to building a saga orchestrator from scratch in Python, ending with a live dashboard that visualizes transaction flows in real time.
Project Anatomy: Why Smart Teams Ship and Nothing Happens
·9 mins
Five ownership gaps that silently kill projects - and the questions to ask before writing a single line of code.
Finding and Fixing a Memory Leak in OpenTelemetry: A Debugging Walkthrough
··8 mins
A mysterious memory leak in production turned out to be caused by a bug in the OpenTelemetry Python library that only occurred in serverless environments, not during local testing.