Adam Sajko
Senior Software Engineer at Callstack
Poznan Metropolitan Area Poland
Summary
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SeniorAdam Sajko is a senior full-stack software engineer with nearly a decade of professional experience, now focused on React and React Native development at Callstack. He has progressed through hands-on roles at STX Next, Wakacje.pl, and as a technical consultant at BrokerBlocks, delivering production web and mobile applications across diverse domains. Adam blends front-end expertise with full-stack intuition, shipping user-facing features while understanding backend integration and delivery concerns. Based in Greater Poland, he pairs practical product-first engineering with a playful GitHub presence (◕‿◕), suggesting a collaborative, approachable style that thrives in team-oriented, open-source-friendly environments.
9 years of coding experience
9 years of employment as a software developer
English
Github Skills (86)
storybook10
ui-components10
testing10
css-in-js10
redux-store10
timepicker10
javascript10
reanimated10
bottomsheet10
react-native-web10
html10
datetimepicker10
angular10
storage10
typescript10
Programming languages (4)
Github contributions (5)
CTeamSoftware/blade-profiler
Feb 2025 - Mar 2026
Contributions:12 releases, 9 pushes, 16 tags in 1 year 1 month
adam-sajko/tamagui
Aug 2024 - Jun 2026
Style React fast with 100% parity on React Native, an optional UI kit, and optimizing compiler.
Contributions:11 pushes, 3 branches in 1 year 10 months
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