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Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
Lead the development of a cross-platform React Native application that interfaces with BLE hardware for device control and pairing. Responsibilities include integrating native modules, managing secure credential storage, and implementing offline-first synchronization.
Requires strong production experience shipping React Native apps to both major app stores and proficiency in Swift or Kotlin for native modules. Candidates must be fluent in English and available during US Eastern business hours.
Our client is looking for a Mobile Lead Engineer for a project focused on a cross-platform React Native app (iOS and Android) that discovers, pairs with, and controls BLE hardware.
● Native module integration: wiring a vendor-supplied Bluetooth SDK into React Native and handling the bridge cleanly
● Cross-platform BLE identifier handling, where iOS exposes a per-pairing UUID and Android exposes the MAC address directly
● Lock and unlock flows with hard timing constraints (sub-second response, short connection and validation windows)
● Over-the-air firmware updates to connected devices
● Offline-first behavior: a pending-action queue that syncs when the device reconnects
● Secure credential storage (iOS Keychain, Android Keystore), biometric auth, NFC, and QR-based device registration
● Real-time device status: battery, firmware version, connectivity state
● Strong production React Native experience, with apps you've shipped to the App Store and Google Play
● Comfort writing or integrating native modules (Swift/Kotlin) when the JavaScript layer isn't enough
● Solid grasp of mobile state management, async flows, and the realities of debugging on physical devices rather than simulators
● The instinct to handle edge cases and failure states up front, not after QA finds them
● Fluent English and availability during US Eastern business hours
These aren't required, but they move a candidate to the top of the list:
● Bluetooth Low Energy (BLE) experience. Direct, hands-on work with BLE in a mobile app. If you've fought with connection timeouts, GATT services, pairing quirks, or platform identifier differences, say so.
● IoT apps in your portfolio. Apps that control or communicate with physical hardware. Tell us what the device was and what your app did with it.
● B2B / enterprise app experience over consumer apps. We'd rather see a multi-tenant admin tool, a field-operations app, or a hardware companion app than a high-polish consumer social app. The user base here is organizations and operators, not the mass market.
Meet your new digital product engineering department.
Curotec was founded in 2010 just outside of Philadelphia in an area known as the Philadelphia Main Line. We have a global presence with clients ranging from funded startups to Fortune 100 enterprises spanning a number of vertical industries. The work we’ve done has won numerous awards and we’ve been recognized by global organizations for providing exceptional business value to our clients on a consistent basis. When it comes to digital business solutions, there is no challenge too complicated that we cannot tackle.
Offices: 18 Campus Blvd, Suite 100, Newtown Square, Pennsylvania 19073, US · 100 S Juniper St, Suite 504, Philadelphia, PA 19107, US
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