Firmware Contractor

Firmware Contractor | Cambridge | Hybrid A medical device team in Cambridge is looking for a firmware contractor with wireless integration experience to join their team on a long-term contract developing embedded…

Hybrid Engineering
Pay rate £55 – £75/hour
Contract type Contract
Posted 17 September 2026

Trusted. Transparent. Built for contractors. Thousands of UK contractors find their next contract on ContractorUK.

View all engineering jobs ›

About this contract

Firmware Contractor | Cambridge | Hybrid

A medical device team in Cambridge is looking for a firmware contractor with wireless integration experience to join their team on a long-term contract developing embedded software for connected devices.

The role requires 2 days a week onsite in Cambridge, and will run for 24 months

Requirements:

* Embedded C/C++ proficiency on bare metal & RTOS platforms

* Hands-on experience with STM32 microcontrollers and embedded debugging.

* Proven delivery of low-power firmware for battery-operated devices.

* Experience with GNSS, LoRa or LoRaWAN, embedded peripherals

Bonus skills:

* Experience with u-blox's newer GNSS architectures.

* Familiarity with oscilloscopes, logic analysers, multimeters, and J-Link or ST-Link.

* Experience with Git and collaborative development workflows.

* Ability to read hardware schematics and PCB layouts.

* Experience using AI-assisted development tools such as GitHub Copilot or comparable tools.

Even if you've never contracted before, I encourage you to apply

Apply for this job

You'll complete your application on CV-Library, our jobs partner.

← More engineering jobs

Set up for this contract

ContractorUK partners
Markel Direct IR35 and contractor insurance

Most agencies and clients ask for professional indemnity and public liability before you start.

Get your quote →
SG Accounting Contractor accountants

Working through your own limited company? A contractor-specialist accountant keeps the admin off your desk.

Find out more → Also: Caroola · Dolan Accountancy · Compare all accountants

Get new Engineering contracts by email

One email when new matches appear. Unsubscribe with one click.

Prefer to be found? Upload your CV to CV-Library — free

Similar contracts

All engineering jobs →

Senior Mechanical Design Engineer

Cambridge, Cambridgeshire

Senior Mechanical Design Engineer ARCA is supporting an engineering business to bring in an experienced Mechanical Design Engineer on a contract basis. This is a hands-on role focused on the design, development and…

Outside IR35 Hybrid Engineering Today
£40 – £50/hour Apply now

Contract Production Electronics Engineer

Cambridge

Contract Production Electronics Engineer Cambridge: Office-based (4 days on site) Contract: 12 Months, Inside IR35 Rate: Flexible Like being the technical authority production floors around the world call on when…

Inside IR35 Engineering Yesterday
£40 – £55/hour Apply now

Contract Electronics Engineer

Cambridge

Contract Electronics Engineer  Cambridge: Hybrid (3-4 days on site) Contract: 12 Months, Inside IR35 Rate: Flexible Enjoy taking electronic designs from NPI into full production and owning what happens when things go…

Inside IR35 Hybrid Engineering Yesterday
£45 – £60/hour Apply now

Contract Senior Systems Engineer

Cambridge

Contract Senior System Engineer Cambridge: Hybrid (2 days on site) Contract: 2 Years, Inside IR35 Rate: Flexible Want real influence across every discipline of a connected hardware product, rather than staying boxed…

Inside IR35 Hybrid Engineering Yesterday
£50 – £65/hour Apply now

Contract System Test & Integration Engineer

Cambridge

Contract System Test & Integration Engineer Cambridge: Hybrid (2 days on site) Contract: 2 Years, Inside IR35 Rate: Flexible Enjoy being the person who actually gets a complex connected product working end-to-end, not…

Inside IR35 Hybrid Engineering Yesterday
£40 – £55/hour Apply now

Contract Test Lead (ATE)

Cambridge

Contract Test Lead (ATE) Cambridge | Hybrid (3 days on site) Contract: 2 Years, Inside IR35 Rate: Flexible Fancy owning the test equipment strategy for a connected hardware product that's just stepping up from R&D into…

Inside IR35 Hybrid Engineering Yesterday
£50 – £65/hour Apply now
Apply now