Daniel Szczepanik
Founder at Localesy
Silesian Voivodeship, Poland
Summary
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RockstarDaniel Szczepanik is a founder and seasoned software engineer with nine years of experience building cross-platform web and mobile applications, currently leading Localesy. A React/React Native expert and former Callstack team lead, he has delivered high-traffic enterprise solutions, driven architecture and refactoring initiatives, and mentored engineering teams to improve developer productivity. He contributes to prominent open-source projects such as react-native-paper, where he improved Material Design theming and UI components, demonstrating a strong front-end craft. Equally comfortable across the stack, he emphasizes clean, reusable code, automated testing, and developer experience improvements. Based in Silesia, Poland, he blends entrepreneurial drive with hands-on engineering and a knack for turning complex UX and performance challenges into maintainable solutions.
9 years of coding experience
6 years of employment as a software developer
English, Polish
Github Skills (12)
uid10
material-design10
javascript10
react-native10
front-end-development10
ui-design10
theming10
typescript-types9
typescript9
typescripts9
uikit9
animation8
Programming languages (7)
Github contributions (5)
callstack/react-native-paper
Nov 2021 - Oct 2022
Material Design for React Native (Android & iOS)
Role in this project:
Front-end Developer
Front-end DeveloperContributions:46 reviews, 32 commits, 16 PRs in 11 months
Contributions summary:Daniel contributed significantly to the React Native Paper library, focusing on UI component improvements and theming. They enhanced the AnimatedFAB component, adding new features and animations. Furthermore, the user updated and refactored the theming structure and various components to utilize the updated Material You theming system. They also added support for surface shadows and adjusted the typography component.
androidiosmaterial-designreact-nativeui-kit
Drakeoon/fast_food_backend
May 2019 - May 2020
Backend application written in Phoenix with support for GraphQL requests
Contributions:34 commits, 11 PRs, 15 pushes in 1 year
backendgraphql-request
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