Senior Firmware Engineer

Halter

Full-time Software Architecture & Engineering
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Location
auckland, auckland, New-Zealand
Posted
July 21, 2026

Job Description

What you'll be doing

  • Design and implement robust embedded C/C++ firmware for our collars, running on FreeRTOS, with real constraints around power, memory and reliability.

  • Work on the communication systems that hold the fleet together: LoRa mesh networking, cellular connectivity, BLE, and the protocols layered on top (CoAP, OSCORE, protobuf) that keep devices talking to each other and to the cloud efficiently and securely.

  • Design and tune algorithms that live close to the hardware: signal processing for sensor data, timing and synchronisation across a mesh of devices, filtering and estimation problems where getting the maths right actually matters.

  • Take ownership of firmware end-to-end, from initial design, through implementation and testing, to mass deployment and ongoing production support across a large, live fleet.

  • Debug hard, intermittent, field-only problems using logs, telemetry and...