Senior Developer; Software - HMRC - SEO

Senior Developer (Software) – HMRC – SEO

Join Manchester Digital as a Senior Developer (Software) – HMRC – SEO.

• Bristol Regional Centre – 3 Glass Wharf
• East Kilbride – Queensway House
• Edinburgh Regional Centre – Queen Elizabeth House
• Glasgow Regional Centre – Atlantic Square
• Salford – Trinity Bridge House
• Worthing – Teville Gate House
• Telford – Plaza 1 and 2
• Cardiff Regional Centre – Ty William Morgan

For employees of CDIO based at a transitional site, eligibility to remain at that site may apply.

Discover a career in your hands ther you're seeking purpose, growth, or a workplace that gives you a true sense of belonging, hear from some of our employees as they share their story about what it’s really like to work at HMRC.

Are you a software developer looking for a new opportunity? Now is a fantastic time to start building your career in our exciting, creative and world‑class IT team.

The Senior Software Developer role sits within HMRC’s Chief Digital Product Office (CDPO), in the Business Developed Applications (BDApp) team. This team designs, builds and maintains software solutions that support HMRC’s customer‑focused strategy with a portfolio that includes around 140 products, ranging from new applications to legacy systems.

The role is central to delivering technological change while ensuring operational stability. It involves leading the design and delivery of BDApps, maintaining and enhancing existing applications, and driving improvements to reduce technical debt and ensure compliance with legislation and HMRC standards.

• Leading the design and development of software products within the BDApp portfolio.
• Ensuring operational stability and performance of existing applications.
• Implementing changes to maintain compliance and improve efficiency.
• Working with stakeholders to deliver secure, effective and sustainable solutions.
• Supporting HMRC’s strategic direction by adopting cloud technologies and modern development practices.

This position requires a strong understanding of the software development lifecycle and HMRC’s IT infrastructure. It also involves applying knowledge of cloud platforms and enterprise architecture to deliver solutions that meet our organisational goals. The role combines technical leadership with hands‑on development and collaboration across teams.

It is a challenging role for those looking to deliver technological change during a period of organisational transformation. It offers the opportunity to make a real difference to people’s lives by delivering high‑quality digital products. As a Senior Developer, you will take responsibility for the operational stability of our portfolio of Business Developed Applications (BDApp) and ensure changes are implemented with ongoing robustness and reliability.

• Own the full Software Development Life Cycle, applying agreed software and architectural design principles to deliver fit‑for‑purpose solutions.
• Lead and engage with stakeholders throughout all stages of development, from feasibility to delivery, ensuring customer needs and timescales are met.
• Write high‑level software that complies with HMRC and WCAG standards, with a strong focus on accessibility and security.
• Support the transition to web‑based and microservice architectures, considering evolving technologies to protect customer data.
• Apply knowledge of technical innovations and HMRC’s technology landscape to shape developments, leveraging corporate robotics, BDApp capabilities and low‑code solutions such as Power Platform.

• Work closely with delivery managers and support teams to ensure products meet HMRC and Government governance requirements.
• Mentor team members and invest in continuous learning to stay ahead of technology changes.
• Maintain an organised approach to managing tasks for yourself and others.

• Developing software using C# or other high‑level programming languages.
• Leading the technical direction of the team, mentoring junior developers and investing in your own learning.
• Driving adoption of modern technologies, including cloud services, microservices, robotics, and…