Senior Firmware Engineer

ASSA ABLOY Global Solutions; Cardiff; On-site; GBP 60,000 - 90,000; Full time

Benefits offered by this job

Competitive salary

Benefits

Career development

Global opportunities

Job summary

HID Global in Cardiff is seeking a Senior Firmware Engineer to drive embedded firmware design, debugging and sustaining activities across PACS products used worldwide.

You’ll join a small, versatile team, collaborate with cross‑functional colleagues onsite and overseas, and occasionally travel to support multiple products through their lifecycles. The role offers a competitive salary and a supportive, innovative culture.

Qualifications

• Engineering degree or equivalent or suitable experience.
• Minimum of 4+ years of related industry experience.
• Experience with cryptographic solutions including symmetric & PKI asymmetric.
• Ability to verify product software requirements.
• Familiar with many low‑level developer techniques.
• Familiar with TDD Unit testing and CI/CD.

Responsibilities

• 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.

Skills

Embedded firmware

C/C++

Cryptography

Debugging embedded

CI/CD

Unit testing

Documentation

Team collaboration

Low-level programming

Scripting

Education

Engineering degree or equivalent

Tools

Git

NUnit

Debuggers

Editors/Compilers

Job description

An Amazing Career Opportunity for a Senior Firmware Engineer !!

Location: Cardiff UK

Job ID: 49556

A skilled senior engineer with firmware development and debugging skills is required for our design centre 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.

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 successby:

• 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

Additional beneficial skills/experience

• Smart Card ISO7816 and RFID ISO 14443/15593 protocols.


• I2C and SPI protocols.


• USB low level protocols.


• Cryptographic code programming.


• NUnit test frame4work.


• Bluetooth Low Energy protocol.


• 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‑orientated, reliable, and straightforward and value being treated accordingly. We want all our employees to be themselves, to feel appreciated and accepted.

HID does not accept unsolicited resumes from headhunters, recruitment agencies, or fee‑based recruitment services. We are not responsible for any fees related to unsolicited resumes.

HID is committed to building a diverse, equitable, and inclusive workforce that reflects the global communities we serve. As an equal opportunity employer, we welcome applications from individuals of all backgrounds, experiences, and perspectives. We evaluate applicants without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, disability, age, veteran status, or any other legally protected characteristic. Our goal is to create a workplace that empowers everyone to thrive and be their authentic selves, fostering an environment of mutual respect and inclusivity. If you have a disability and require assistance or accommodation to participate in the application process or to perform essential job functions, please contact [e-mail].

Immigration Sponsorship Not Available

• Applicants for this position must be currently and legally authorized to reside and work in the hiring country.


• HID Global will not offer immigration sponsorship or assume sponsorship of an employment visa for this position.


• International relocation or remote work arrangements outside of the hiring country will not be considered.

Our Talent Acquisition team may use an AI‑powered screening tool to support their initial review of your application. The tool analyzes resume content such as qualifications, skills, and experience to help recruiters assess applications against role requirements. It does not score, rank, filter, or make any decisions about your application. All hiring decisions are made by people following their own review of your full application.

Information processed by the tool is deleted once the recruiter's review is complete.

If you believe the tool has not accurately represented your application, you can request direct human review by [e-mail] with the subject line "Application Review Request" and the role you applied for.

HID is certified as a Great Place to Work in the UK, reflecting employee feedback on trust, collaboration, and workplace culture.

We make it easier for people to get where they want to go!

On an average day, think of how many times you tap, twist, tag, push or swipe to get access, find information, connect with others or track something. HID technology is behind billions of interactions, in more than 100 countries. We help you create a verified, trusted identity that can get you where you need to go – without having to think about it.

When you join our HID team, you’ll also be part of the ASSA ABLOY Group, the global leader in access solutions. You’ll have 63,000 colleagues in more than 70 different countries. We empower our people to build their career around their aspirations and our ambitions – supporting them with regular feedback, training, and development opportunities. Our colleagues think broadly about where they can make the most impact, and we encourage them to grow their role locally, regionally, or even internationally. As we welcome new people on board, it’s important to us to have diverse, inclusive teams, and we value different perspectives and experiences.