Firmware Engineer (Cardiff) - #1716396

Job Title: Firmware Engineer

Location: Cardiff (Hybrid – 2 remote days per week)

Salary: £50,000-£55,000 + Bonus

Key Responsibilities

• Design and implement embedded firmware primarily using C


• Develop and integrate cryptographic solutions.


• Produce and maintain clear and accurate design documentation.


• Hands-on debugging and troubleshooting of embedded systems.


• Collaborate in a team environment and work independently when needed.


• Deliver design-related tasks.

Required Knowledge & Experience

• Proven ability to verify and implement software requirements.


• Skilled in interpreting stakeholder/user requirements to create or maintain designs.


• Strong problem-solving abilities in addressing complex technical issues.


• Proficient in low-level programming languages (C) and scripting.


• Experience with TDD (Test-Driven Development) and unit testing.


• Familiarity with CI/CD (Continuous Integration/Continuous Deployment) practices.


• Experience using version control systems (e.g., Git).


• Strong grasp of embedded software development lifecycles and tools including debuggers, compilers, and editors..

Education & Experience

• Degree in Engineering or equivalent, or significant relevant experience.


• Minimum of 4+ years’ experience in embedded systems or a related industry.

Desirable Skills & Experience

• C# OR C++


• Experience with I2C and SPI communication protocols.


• Understanding of USB low-level protocols.


• Experience in cryptographic code development.


• Familiarity with Jenkins automation.


• Use of NUnit or similar testing frameworks.


• Experience with Bluetooth Low Energy (BLE).


• Proficiency in scripting languages (e.g., Python).


• Use of CMock for unit testing.


• Applied experience in implementing cryptographic solutions.