Aleksander Katynia
CTO Backend Engineer PHP Developer at Onliner.by
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolAleksander Katynia is a seasoned engineering leader and backend-focused CTO with 12 years of hands-on experience designing and operating PHP-based systems at Onliner.by. Rising through roles from PHP Developer to CTO since 2011, he combines deep practical knowledge of backend architectures with people leadership and technical strategy. Based in Warsaw, he specializes in building reliable, scalable services and shepherding teams through growth and architectural evolution. Colleagues know him for turning legacy PHP stacks into maintainable platforms while keeping delivery velocity high. His engineering degree underpins a pragmatic, systems-oriented approach to problem solving and long-term platform health.
12 years of coding experience
5 years of employment as a software developer
B.S., Engineering, B.S., Engineering at Grodnenski Dzjaržauny Universitet imja Janki KupalySchool #31 Grodno
English, Russian, Polish
Github Skills (50)
api-documentation10
api10
buster9
b2b9
internals9
nodejs9
streaming8
streaming-data7
kafka7
bus7
sql7
kapacitor7
materialize7
database7
imgproxy7
Programming languages (7)
Github contributions (5)
onlinerby/onliner-second-api
Aug 2018 - Sep 2023
Contributions:2 pushes, 5 comments, 9 issues in 5 years 2 months
Olden/sudoku-solver
Nov 2017 - Apr 2024
Contributions:2 pushes, 1 branch in 6 years 5 months
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