Przemyslaw Haptas
Software Engineer at Cello
Krakow, Lesser Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolPrzemyslaw Haptas is a seasoned Software Engineer based in Krakow with 11 years of experience building scalable B2B SaaS products across the full stack. He has progressed from software developer roles to senior full stack positions at companies like Chargify and Frontier, and currently contributes to Cello, bringing deep experience in delivering production-ready systems. Comfortable spanning backend services and frontend interfaces, he’s known for turning complex business requirements into reliable, maintainable code and pragmatic engineering practices. His academic grounding is an MSc in Computer Science from AGH University of Science and Technology, and his career shows a steady track record of working in cross-functional teams at both startups and product-focused engineering organizations. An understated strength is his consistency—long tenures and progressive responsibilities suggest strong ownership and the ability to ship features end-to-end.
11 years of coding experience
7 years of employment as a software developer
AGH University
English, Polish, German
Github Skills (41)
payment-gateway10
payment-processing10
payment10
adyen10
abstraction9
payment-integration9
square9
spree8
shopify8
ruby-wrapper7
ruby7
ecommerce6
wrapping5
merchant5
gitlab-ci5
Programming languages (5)
Github contributions (5)
przemyslawhaptas/node-app-template
Jul 2021 - Feb 2022
Contributions:29 commits, 1 PR, 4 pushes in 6 months
przemyslawhaptas/traffic_simulation
Mar 2016 - Sep 2016
Contributions:8 PRs, 66 pushes, 3 branches in 6 months
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