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Software Engineer

Job Req ID:  53597
Posting Date:  27 Nov 2025
Function:  Software Engineering
Unit:  Networks
Location: 

Riverside Tower, Belfast (N.I), United Kingdom

Salary:  Competitive + great benefits

 

Working Style: 3 days a week in office, 2 days from anywhere

Why this job matters

Join Our Innovative Broadband Devices Team!

Are you passionate about developing cutting-edge technology that enhances the internet experience for millions? Our Broadband Devices team, a key part of Networks, is at the forefront of creating embedded firmware (powered by Linux) for home gateways and Wi-Fi extenders. We ensure our customers enjoy seamless internet connectivity, whether over Wi-Fi or Ethernet.

 

Why Join Us?

  • Innovative Solutions: We develop and integrate our in-house software solution (Indigo), with hardware built by our partners. This software powers all new devices, providing top-tier broadband services.
  • Continuous Development: Our team is dedicated to continually enhancing Indigo, adding new features, and supporting the latest hardware platforms.
  • Impactful Work: You’ll be part of a team that builds and integrates firmware that directly impacts our customers’ internet experience.

 

Your Role

As an embedded software developer, you’ll be at the heart of our Indigo firmware development. Using Agile methodologies and industry-leading tools, you’ll work within a dynamic squad focused on different aspects of Indigo.

 

What We Offer

  • World-Class Team: Join a team of experts who are passionate about their work and proud of the services they develop.
  • Exciting Projects: Work on new hardware and software services, with opportunities to trial and innovate from day one.

Growth Opportunities: Expect to learn and grow in a stimulating environment that encourages continuous development. 

 

Be Part of Something Big

This is a fantastic opportunity to be at the center of an exciting development program that is at the centre of millions of homes in the UK. If you’re ready to make a significant impact and be part of a world-class team, we want to hear from you!

 

See here for our latest Smart Hubs running Indigo:

Wifi 7 router | The Best Wifi Technology with low latency | EE

What you’ll be doing

  • Innovative Software Design: Lead the design, implementation, and testing of Smart Hub software using Agile methodologies.
  • Agile Team Collaboration: Work within a dynamic, small Agile team to develop next-generation products on ambitious timelines.
  • Best Practices Advocate: Champion best software engineering practices, including automated testing, to ensure high-quality deliverables.
  • Cross-Team Collaboration: Partner with other software development teams to deliver a brilliant  customer experience.
  • Requirement Clarification: Understand requirements, confirm user stories, and ensure the desired customer experience is achieved.
  • Continuous Learning: Commit to constant learning and development

What you'll bring

Mandatory

  • Strong Software Design & Development Experience: Proficient in designing and developing software using C on embedded Linux systems, with hands-on experience in Linux kernel development.
  • Embedded Linux System Development: Experienced in building, debugging, and scripting for embedded Linux systems.
  • CI/CD and Version Control Tools: Proficient in using tools like Git, GitLab, Jira, and Confluence for code revision and continuous integration.
  • Agile Delivery Methods: Familiar with Agile methodologies such as Scrum and Kanban.
  • Test Automation: Ideally, knowledgeable and experienced in automating tests using Python.
  • Strong scripting skills, e.g. bash, python. 

 

Nice to have (can be learned on the job)

  • Experience of building products using OpenWrt or similar
  • Experience using containers, e.g. LXC or Docker, ideally on embedded systems
  • Experience of Wi-Fi, mobile, DECT, voice or hybrid technologies
  • Has a working knowledge of Home Gateway technologies such as Broadband, 4G/5G Mobile networks, IP, WiFi, Voice, DECT, IoT, and Home Networking
  • Degree in Relevant Field: Hold a degree in engineering, science, or a related area that is pertinent to the job.

What's in it for you

  • 10% on target bonus
  • BT Pension scheme, minimum 5% Employee contribution, BT contribution 10%
  • Life Assurance Cover
  • Exclusive colleague discounts on our latest and greatest BT broadband packages, BT TV with TNT Sports and NOW Entertainment
  • From January 2025, equal family leave: receive 18 weeks at full pay, 8 weeks at half pay and 26 weeks at the statutory rate. It’s for all parents, no matter how your family is made up.
  • Enhanced women’s health support: including help with menopause symptoms, cancer screenings, period care and more.
  • 25 days annual leave (not including bank holidays), increasing with service
  • 24/7 private virtual GP appointments for UK colleagues
  • 2 weeks carer’s leave
  • World-class training and development opportunities
  • Option to join BT Shares Saving schemes

About us

BT Group was the world’s first telco and our heritage in the sector is unrivalled.  As home to several of the UK’s most recognised and cherished brands – BT, EE, Openreach and Plusnet, we have always played a critical role in creating the future, and we have reached an inflection point in the transformation of our business. 
 
Over the next two years, we will complete the UK’s largest and most successful digital infrastructure project – connecting more than 25 million premises to full fibre broadband.  Together with our heavy investment in 5G, we play a central role in revolutionising how people connect with each other. 
 
While we are through the most capital-intensive phase of our fibre investment, meaning we can reward our shareholders for their commitment and patience, we are absolutely focused on how we organise ourselves in the best way to serve our customers in the years to come.  This includes radical simplification of systems, structures, and processes on a huge scale. Together with our application of AI and technology, we are on a path to creating the UK’s best telco, reimagining the customer experience and relationship with one of this country’s biggest infrastructure companies.  
 
Change on the scale we will all experience in the coming years is unprecedented.  BT Group is committed to being the driving force behind improving connectivity for millions and there has never been a more exciting time to join a company and leadership team with the skills, experience, creativity, and passion to take this company into a new era.

A FEW POINTS TO NOTE:

Although these roles are listed as full-time, if you’re a job share partnership, work reduced hours, or any other way of working flexibly, please still get in touch.

We will also offer reasonable adjustments for the selection process if required, so please do not hesitate to inform us.

DON'T MEET EVERY SINGLE REQUIREMENT?

Studies have shown that women and people who are disabled, LGBTQ+, neurodiverse or from ethnic minority backgrounds are less likely to apply for jobs unless they meet every single qualification and criteria. We're committed to building a diverse, inclusive, and authentic workplace where everyone can be their best, so if you're excited about this role but your past experience doesn't align perfectly with every requirement on the Job Description, please apply anyway - you may just be the right candidate for this or other roles in our wider team.

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