THRILLWORKS

• You will own the end-to-end integration of two new hardware devices into our existing Flutter application — defining the message protocols, extending our BLE communication library, and implementing each device's pre-designed security layer (pairing, authentication, encrypted data exchange) from spec to shipped feature. • You will own automated test coverage on every new communication and security code path, driving it to 95%+ and giving you the autonomy to decide how you prove out the hard-to-test cases: dropped packets, race conditions, and hardware-in-the-loop failure modes. • You will audit and resolve performance and reliability issues that span the stack — application code, mobile OS BLE stacks, and firmware — root-causing intermittent bugs that don't respect layer boundaries. • You will produce the documentation that becomes the reference for how our devices talk to our app: protocols, security implementation, library APIs.