About Kasphyn:
We are building Kasphyn — an EMG + IMU wearable device for serious fitness enthusiasts. The device reads real-time muscle activation data via Bluetooth Low Energy (BLE) and delivers AI-powered coaching through a React Native mobile app.
What You Will Do (End-to-End Ownership):
- Build and maintain our React Native (Expo) mobile app — screens, navigation, state management, animations
- Implement and debug BLE data streaming from our custom hardware device to the app
- Work with real-time sensor data (EMG + IMU signals) — parsing, filtering, visualization
- Integrate with backend — auth, real-time database, edge functions
- Build data pipelines for our AI coaching layer
- Fix bugs across the stack — firmware-adjacent issues, app crashes, performance bottlenecks
- Ship features fast. We prototype in days, not sprints.
Tech Stack:
- React Native (Expo) + TypeScript + NativeWind
- Zustand (state management)
- react-native-ble-plx (Bluetooth LE)
- Supabase (PostgreSQL, Auth, Realtime)
- react-native-svg, react-native-reanimated
- Git + GitHub + Cursor/Claude Code workflows
Pay: From ₹30,000.00 per month
Benefits:
- Flexible schedule
- Paid sick time
- Work from home
Work Location: In person
