Mateusz Stefaniak
Team Leader Senior Full Stack Developer (Arch. Capabilities) at Primaris
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolMateusz Stefaniak is a seasoned Team Leader and Senior Full Stack Developer with 12 years of experience designing and delivering enterprise-grade, microservices-based systems from Warsaw. He leads teams through planning, CI/CD lifecycle management and large migrations—recently steering a transition from a custom C++ ESB to gRPC microservices with a BFF REST layer and containerization readiness. Comfortable across Java/Spring backends, Angular frontends, integrations (REST, gRPC, SOAP, SAML) and IDM/IAM work, he combines hands-on coding with architecture and client-facing project planning. Mateusz is pragmatic about tooling—believing "nothing is impossible with the right tool"—and brings rare end-to-end expertise spanning legacy Delphi systems to modern cloud-native stacks.
12 years of coding experience
2 years of employment as a software developer
Warsaw University of Technology
Polish, English, German, Russian
Stackoverflow
886reputation
159kreached
11answers
14questions
Github Skills (104)
api-client10
swagger10
rest-client10
openapi-generator10
rest-api10
openapi10
stubs10
api10
sdk10
rest10
spring-boot-starter10
api-server10
lombok10
spec10
restful-api10
Programming languages (6)
Github contributions (5)
EmhyrVarEmreis/MoreLifeLite
Mar 2014 - Nov 2016
Contributions:1 release, 25 commits, 7 pushes in 2 years 8 months
EmhyrVarEmreis/Settler
Nov 2015 - Feb 2021
Contributions:1 release, 289 commits, 15 PRs in 5 years 3 months
settlements
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