Kacper Grzeszczyk
Software Engineer at Playbook
Gdynia, Pomeranian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolKacper Grzeszczyk is a seasoned front-end and mobile software engineer with 11 years of experience, specializing in React, React Native and TypeScript. He combines hands-on development at companies like Playbook and Kraken with freelance work via Toptal and his own consultancy, Codigo, delivering production-grade apps and team-level technical guidance. Kacper has a strong teaching and mentorship pedigree—co-creating and instructing front-end courses, leading cohorts, and introducing React Native into organizations—which informs his pragmatic approach to developer onboarding and code quality. He’s led delivery centers and pro bono projects (e.g., Animal Helper), showing an ability to balance product delivery with community impact. Based in Gdynia, Poland, he pairs an engineering background in mechatronics with a passion for mobile UX and developer education, making him as comfortable mentoring teams as writing the code that ships.
11 years of coding experience
8 years of employment as a software developer
Inżynier (Inż.), Mechatronics, Robotics, and Automation Engineering, Inżynier (Inż.), Mechatronics, Robotics, and Automation Engineering at Politechnika Gdańska
Polish, English
Github Skills (75)
react-native-notifications10
avatar9
palette9
avatar-generator9
testing9
react-native9
ios9
profile-picture9
react9
android9
test-automation8
color-palette8
javascript8
steroids8
automation8
Programming languages (7)
Github contributions (5)
kacgrzes/expo-template
Aug 2021 - Jul 2022
Contributions:37 reviews, 102 commits, 10 PRs in 11 months
Dawqss/11_4
Nov 2016 - Jul 2023
Contributions:1 PR, 1 issue in 6 years 8 months
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