JOB TITLE React Native Developer with Bluetooth/BLE Experience — Vehicle Logging App

I’m building an internal app to automatically log my technicians’ workdays. An OBD-II Bluetooth adapter in each truck tells the app when the ignition turns on and off. The app captures GPS and time on those events, asks the tech a few quick questions at each stop, and builds a daily log I can review in a simple web dashboard. The goal is that the tech barely has to touch it. Scope: • React Native app, iOS + Android (Expo preferred) • Bluetooth LE connection to an ELM327 OBD-II adapter; ignition detection via engine RPM • GPS capture on ignition events • Background execution so logging continues with the screen off • Offline-first — queue locally in dead zones, sync on reconnect • Supabase (Postgres) backend • Prompt flow at stops (tap/text answers; voice comes later) • Simple React web dashboard: pick a tech, pick a week, see each day I already have a written spec, data model, and staged build plan — I’ll share them with serious candidates. You won’t be guessing at requirements. How we’ll work: staged, tested on a real truck between stages. Hourly, roughly 15–25 hrs/week for about 3 months, likely ongoing after. I’m US Eastern and will be testing daily on my own truck, so I need real overlap with my hours. Latin America and Eastern Europe fit well. If you’re further out, tell me how you’d handle it.