Jakub Kasprzyk

• –Building cross-platform mobile applications with React Native and the New Architecture
• –Authoring and maintaining open-source native modules built on Nitro Modules
• –Working across the native layer in Swift, Kotlin, and C++ to improve rendering performance

• –react-native-better-maps — High-performance maps for React Native built on Nitro Modules and the New Architecture, backed by MapKit on iOS and Google Maps on Android.
• –react-native-better-clustering — A faster drop-in replacement for react-native-map-clustering with the same MapView API and a C++ supercluster engine underneath.

React Native · TypeScript · Nitro Modules · Swift · Kotlin · C++ · Expo

• –Developing and maintaining cross-platform mobile applications for iOS and Android
• –Implementing AI-powered features and integrating machine learning capabilities
• –Collaborating with cross-functional teams to deliver high-quality mobile experiences

• –TapNote — AI-powered note-taking and study application available on iOS and Android.

React Native · TypeScript · Kotlin · Swift · Node.js · AI/ML Integration · Cloud Services

• –Contributed to open-source development of Radon IDE, a VSCode/Cursor extension
• –Worked on features that enhance React Native and Expo development workflows
• –Collaborated with experienced developers in an agile, open-source environment
• –Gained hands-on experience with IDE development and extension architecture

• –Radon IDE — an innovative VSCode/Cursor extension that transforms standard code editors into fully-featured Integrated Development Environments specifically designed for React Native and Expo development.

TypeScript · VSCode Extension API · React Native · Expo · Node.js

• –Developed and maintained production mobile applications used by thousands of users globally
• –Implemented complex features including music distribution, analytics, and gamification systems
• –Optimized app performance and improved user experience through iterative development
• –Collaborated with product managers, designers, and backend engineers in an agile environment

• –MUGO — Global music distribution and artist promotion platform for independent artists.
• –JustWin — Gamified mobile application featuring user engagement and challenge-based features.

React Native · Kotlin · Swift · TypeScript · Firebase · REST APIs · CI/CD

High-performance maps for React Native built on Nitro Modules and the New Architecture, backed by MapKit on iOS and Google Maps on Android.

A faster drop-in replacement for react-native-map-clustering with the same MapView API and a C++ supercluster engine underneath.

Platform for managing amateur and semi-professional football leagues with both web and mobile applications. Streamlines league operations, team management, and provides real-time updates to players and organizers.

AI-powered training platform that helps Polish high school students prepare for the written and oral matura exam by simulating the exam commission and providing instant, criteria-based feedback.