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Senior Firmware Engineer

Job in Cardiff, Cardiff City Area, CF10, Wales, UK
Listing for: HID
Full Time position
Listed on 2026-07-27
Job specializations:
  • Software Development
    Software Engineer, Embedded Software Engineer, DevOps, C++ Developer
Salary/Wage Range or Industry Benchmark: 65000 - 95000 GBP Yearly GBP 65000.00 95000.00 YEAR
Job Description & How to Apply Below

An Amazing Career Opportunity for a Senior Firmware Engineer !!

Location:

Cardiff UK

Job

A skilled senior engineer with firmware development and debugging skills is required for our design center in Cardiff. Working in a small, versatile team, the candidate's work will be involved in product design and sustaining activities on a range of PACS RFID access control products which are sold worldwide. The candidate needs to be able to effectively manage their time to support work on a variety of products at different stages of the product's lifecycle, and to be able to collaborate well with colleagues from different departments both onsite and overseas.

Occasional travel may be required.

Who are we?

HID powers the trusted identities of the world’s people, places, and things, allowing people to transact safely, work productively and travel freely. We are a high-tech software company headquartered in Austin, TX, with over 4,500 worldwide employees. Check us out here:  and

Physical Access Control Solutions (PACS):

HID Physical Access Control Solutions (PACS) is at the forefront of securing spaces with advanced, reliable access control solutions. From cutting-edge readers, credentials and controllers, to mobile and biometric technologies, HID PACS empowers organizations worldwide to protect their people, property and assets with scalable, high-quality solutions. This is more than just a job – it’s your chance to join an industry leader to drive innovation in access control and make a real impact on global security solutions.

As

our Senior Firmware Engineer, you’ll support HID’s success by:
  • Implementation of embedded firmware designs and test solutions primarily in C and C#
  • Implementation of cryptographic solutions.
  • Creation of design documentation.
  • Practical hands‑on experience working with and debugging embedded systems.
  • Working in a team environment.
  • Ability to complete design related tasks with minimal supervision.
Education And/or Experience
  • Ability to verify product software requirements.
  • Engineering degree or equivalent or suitable experience.
  • Minimum of 4+ years of related industry experience.
  • Ability to understand, maintain and create designs from stories/user/stakeholder requirements.
  • Ability to provide technical solutions to mid‑to‑high complexity issues.
  • Good working knowledge of low programming languages (C/C#) and scripting.
  • Familiar with many low‑level developer techniques.
  • TDD Unit test approach.
  • Familiar with CI/CD techniques.
  • Able to demonstrate experience with software version control.
  • Able to demonstrate experience with the FW/SW development progress.
  • Able to use standard development software: debuggers, editors, compilers.
  • Understanding of cryptographic solutions including symmetric & PKI asymmetric
Skills Additional beneficial skills/experience
  • Smart Card ISO
    7816 and RFID ISO 14443/15593 protocols.
  • I2C and SPI protocols.
  • USB low level protocols.
  • Cryptographic code programming.
  • Jenkins automation server/client programming.
  • NUnit test frame4work.
  • Bluetooth Low Energy protocol.
  • Scripting languages e.g. Python.
  • CMock unit testing.
  • Implementation experience of cryptographic solutions including symmetric & ideally PKI asymmetric.
What we can offer you:
  • Competitive salary and rewards package.
  • Competitive benefits and annual leave offering, allowing for work‑life balance.
  • A vibrant, welcoming & inclusive culture.
  • Extensive career development opportunities and resources to maximize your potential.
  • To be a part of a global organization that is pioneering the hardware, software and services that allow people to confidently navigate the physical and digital worlds.
Why apply?
  • Empowerment:
    You’ll work as part of a global team in a flexible work environment, learning and enhancing your expertise. We welcome an opportunity to meet you and learn about your unique unique talents, skills, and experiences. You don’t need to check all the boxes. If you have most of the skills and experience, we want you to apply.
  • Innovation:
    You embrace challenges and want to drive change. You'll have opportunities to share insights and contribute forward‑thinking ideas that shape future outcomes.
  • Integrity:
    You are results‑oriented, reliable, and…
Position Requirements
10+ Years work experience
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