Jacek Kościesza is a seasoned contract software engineer and former CTO with 11+ years building cloud-native, event-driven systems across startups and enterprises from one-man projects to 90-person companies. He combines hands-on backend and frontend expertise (TypeScript, Node.js, React) with deep AWS architecture and infrastructure-as-code experience, having designed systems with 30+ AWS services and advanced serverless patterns. Jacek has led engineering teams, hired and mentored developers, and driven quality practices like automated testing and CI/CD while still shipping code as an individual contributor. He builds ambitious personal projects—FakeTube, a YouTube clone implemented as a microservices/serverless VoD platform—and applies those learnings to drone and robotics work, integrating MQTT, RTMP and real-time streaming for autonomous drone platforms. Currently focused on Go and real-time media/proxy layers for drone automation, he’s also exploring Rust and embedded robotics, reflecting a persistent appetite for low-level systems as well as cloud-scale design. Based in Katowice, Poland, he blends managerial judgment with "code in the blood" craftsmanship and frequent knowledge-sharing through tutorials and internal initiatives.
11 years of coding experience
15 years of employment as a software developer
Maths / Computer Science, Maths / Computer Science at II Walery Wróblewski Secondary School in Gliwice
Master of Science, Engineer, Computer Science, Master of Science, Engineer, Computer Science at The Silesian University of Technology
Set up a modern codebase for cloud-native web app with authentication features by running one command
Contributions:62 commits in 10 months
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