Embedded Firmware Engineer for IoT Devices

Amazon; Cambridge; On-site; GBP 70,000 - 100,000; Full time

Job summary

Ring firmware engineers in Cambridge own software running on embedded devices, collaborating with hardware and cloud teams to deliver reliable firmware across product generations.

You design firmware for battery-powered and wired IoT devices, maintain interfaces, and ensure robust testing and CI pipelines. The role emphasizes hands-on work, architecture, and long-term health of codebases.

Qualifications

• Experience in professional software development or embedded development in C/C++.
• Experience with an RTOS in a production environment: task design, inter-task communication, and synchronisation primitives.
• Experience implementing low-level drivers and interrupt service routines.
• Experience with testing discipline in an embedded context: unit testing, integration testing, or CI pipelines targeting embedded hardware.
• Experience owning a software component end to end, from design through to delivery and maintenance.

Responsibilities

• Design and implement firmware for battery-powered and wired IoT devices running on microcontrollers and RTOS environments.
• Own components end to end: design, implementation, code review, testing, and maintenance across product generations.
• Define and implement software interfaces consumed by other teams and services.
• Debug and resolve issues across the full stack, from hardware bring-up through to production defects in the field.
• Contribute to and maintain CI pipelines, build systems, and automated test infrastructure.
• Work closely with hardware engineers, cloud engineers, and product managers to translate requirements into reliable firmware.

Skills

C/C++

RTOS

Low-level drivers

Testing discipline

End-to-end ownership

Education

Bachelor's degree in CS/CE/EE

Tools

IAR

Keil

Python

Job description

Ring firmware engineers in Cambridge own software running on embedded devices, collaborating with hardware and cloud teams to deliver reliable firmware across product generations.

You design firmware for battery-powered and wired IoT devices, maintain interfaces, and ensure robust testing and CI pipelines. The role emphasizes hands-on work, architecture, and long-term health of codebases.