Parsa Nasirimehr
Technical Lead at Umain
Stockholm, Sweden
Summary
🤩
Rockstar🎓
Top SchoolParsa Nasirimehr is a Technical Lead based in Stockholm with six years of mobile-first engineering experience, currently steering the mobile architecture and infrastructure for the McDonald’s app at Umain. He specializes in mobile payments and app infrastructure, balancing stakeholder needs with pragmatic technical direction across multiple teams. An active open-source maintainer, he is the current maintainer of the widely used lottie-react-native wrapper and contributes fixes and modernizations to the core React Native project. His work often targets cross-platform stability—resolving frame calculation issues, modernizing iOS/Android codepaths, and improving developer tooling like SwiftLint. Earlier roles range from senior mobile engineer at Diet Doctor to frontend and embedded payments work, showing a blend of product-focused delivery and low-level platform maintenance. Outside work he volunteers on OSS, quietly shaping the React Native ecosystem while shipping production-grade mobile payment systems.
6 years of coding experience
5 years of employment as a software developer
Bachelor of Science - BS Computer Engineering, Bachelor of Science - BS Computer Engineering at K. N. Toosi University of Technology
English, Persian
Stackoverflow
378reputation
111kreached
32answers
1question
Github Skills (15)
kotlin10
xcode10
swift10
ios10
mobile-development10
react-native10
android10
react10
animation9
app-framework9
cross-platform9
typescript6
undefined6
react-hooks6
6
Programming languages (14)
Github contributions (5)
lottie-react-native/lottie-react-native
Mar 2023 - Mar 2025
Lottie wrapper for React Native.
Role in this project:
Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:3 releases, 80 reviews, 92 PRs in 1 year 11 months
Contributions summary:Parsa primarily contributed to the iOS implementation of the Lottie React Native library. Their work included fixing frame calculation issues, updating React Native dependencies, and resolving issues related to older Xcode and Swift versions. They also refactored code, added and configured SwiftLint for code quality, and made updates to the example apps and supporting infrastructure.
reactafter-effectsreact-nativeandroidios
facebook/react-native
May 2020 - Feb 2025
A framework for building native applications using React
Role in this project:Mobile Developer (Android/iOS)
Mobile Developer (Android/iOS)Contributions:7 reviews, 10 PRs, 34 comments in 4 years 9 months
Contributions summary:Parsa primarily contributes to the React Native framework, fixing bugs and improving code quality across both Android and iOS platforms. Their work includes migrating deprecated methods, fixing test issues, and migrating code to Kotlin for Android-specific components. They also refactor code to use more modern APIs and address internal project warnings. Their contributions demonstrate a focus on maintaining and improving the core functionalities of the React Native framework.
reactnative-applicationsmobile-developmentreact-nativeandroid
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