Senior Embedded Engineer (Zephyr RTOS) — Hybrid Cambridge

KO2 Embedded Recruitment Solutions LTD; Cambridgeshire and Peterborough; Hybrid; GBP 80,000 - 85,000; Full time

Benefits offered by this job

Visa sponsorship

Relocation package

Hybrid working

25 days annual leave

Pension (8%)

Share save scheme

Life assurance

Income protection

Electric vehicle scheme

Cycle to work

Volunteering day

Job summary

KO2 Embedded Recruitment Solutions LTD is seeking a Senior Embedded Software Engineer with deep Zephyr RTOS experience in Cambridge. You will architect and implement production firmware, bring up boards, and develop interfaces like CAN, SPI and UART within a hybrid work model.

You will work closely with hardware and systems engineers, delivering secure, high-performance embedded software for Zephyr-based platforms and Yocto/Linux contexts. Visa sponsorship available.

Qualifications

• Substantial commercial experience in low level embedded software and firmware.
• Strong Zephyr RTOS experience with hands-on production firmware work.
• Solid C and C++ with performance optimization on constrained hardware.
• Confidence reading schematics and datasheets.
• Proven board bring-up and hardware-to-software integration experience.
• Practical debugging with scopes and logic analyzers.
• Ability to clearly explain what you’ve done on paper and verbally.

Responsibilities

• Architecting and developing embedded firmware on Zephyr RTOS, plus some bare-metal work.
• Bringing up prototype boards from first power using a debugger and test equipment.
• Designing and maintaining board-to-board and digital interfaces: CAN, SPI, I2C, UART, RS422.
• Building networked services and interfaces including REST APIs, SNMP agents and OpenAPI specs.
• Developing and debugging TCP/UDP communication and optimizing protocol performance.
• Ensuring secure communications: authentication, encryption, secure firmware updates.

Skills

Embedded firmware

Zephyr RTOS

C/C++

Hardware bring-up

Schematic reading

Debugging tools

Technical communication

Yocto

Docker

Kubernetes

Python

Tools

Yocto

Docker

Kubernetes

Python

Job description

KO2 Embedded Recruitment Solutions LTD is seeking a Senior Embedded Software Engineer with deep Zephyr RTOS experience in Cambridge. You will architect and implement production firmware, bring up boards, and develop interfaces like CAN, SPI and UART within a hybrid work model.

You will work closely with hardware and systems engineers, delivering secure, high-performance embedded software for Zephyr-based platforms and Yocto/Linux contexts. Visa sponsorship available.