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Job Title: Software Developer
Req ID: 61472
Job Function: Security
Posting Start Date: 05/08/2026
Division: UK Business
Job Location: GBR Cheltenham TE, GBR Ipswich - Orion Building, GBR-London-BTHQ One Braham, GBR-Manchester-Deansgate
Advertised Salary: Competitive DV market aligned salaries
About The Role
If you enjoy solving difficult technical problems, building software, and finding innovative ways to improve quality across complex systems, we'd love to hear from you.
We're growing our engineering teams and recruiting Software Developers in Test (SDETs) at all experience levels to help deliver technology that supports mission-critical services.
As an SDET, you'll combine software engineering and quality engineering skills to build the tools, frameworks and automation capabilities that help teams deliver secure, resilient and reliable technology. You'll work closely with software engineers, architects, delivery teams and customers to ensure quality is designed into solutions from the very beginning of the development lifecycle.
Whether you're developing automated test frameworks, improving CI/CD pipelines, validating complex integrations, analysing system behaviour or creating tooling that helps teams move faster with confidence, you'll be helping deliver technology that genuinely matters.
With a background in software engineering, automation, test engineering, DevOps, platform engineering or site reliability, you'll have opportunities to grow your career within a broad engineering community.
We don't see quality as something that's added at the end of development. We believe quality is engineered into products from the start.
Every engineering team wants to move quickly. The challenge is doing so without compromising trust, resilience or reliability. Our Software Developers in Test help teams achieve exactly that, building the automation, tooling and engineering practices that enable mission-critical services to evolve with confidence.
Note: This role requires eligibility for UK Developed Vetting (DV) clearance. As a result, applicants must typically be sole British citizens and have lived in the UK continuously for the previous 10 years, subject to UK Government vetting requirements.
What You’ll Be Doing
Above all, we're looking for engineers who are naturally curious, enjoy solving difficult problems and are passionate about improving quality through software engineering.
Depending on your skills, interests and experience, you may:
Software Engineering
- Develop resilient, maintainable and well-tested software that supports both products and quality engineering capabilities.
- Design, build and maintain tools, frameworks and services that improve automation and delivery confidence.
- Participate in peer reviews and contribute to engineering standards, best practices and continuous improvement.
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Quality Engineering
- Design and implement automated approaches that validate functionality, performance, reliability and resilience.
- Help identify quality risks early and support teams in delivering trusted software solutions.
- Investigate defects, analyse system behaviour and contribute to root-cause analysis activities.
- Support testing activities across the software delivery lifecycle, from development through to release.
Automation & Platform Engineering
- Build and enhance CI/CD capabilities that enable reliable and repeatable software delivery.
- Develop automation that improves efficiency, reduces manual effort and increases engineering confidence.
- Contribute to test environments, infrastructure and supporting platforms used across engineering teams.
Collaboration & Growth
- Work closely with software engineers, solution architects and operational stakeholders to solve complex technical challenges.
- Share knowledge, mentor colleagues and help develop modern quality engineering practices.
- Identify opportunities to improve ways of working and contribute to a culture of continuous learning.
No two careers in this space look identical, and that's part of what makes it interesting.
You might be a good fit if you're naturally curious about questions such as:
- How do you build confidence into software before it reaches production?
- How can automation help engineering teams move faster without sacrificing quality?
- How do you prove that a mission-critical service is ready for the real world?
- What hidden risks exist inside complex technology environments?
- How do modern engineering teams balance quality, reliability and delivery speed?
- How can software engineering and quality engineering work together to improve outcomes?
- What does great quality engineering look like in the age of AI?
- How can I continue developing my technical skills while working on technology that genuinely matters?
You don't need to have all the answers already. We're looking for people with curiosity, enthusiasm, strong engineering fundamentals and a willingness to learn.
Essential Skills / Experience
We know great engineers don't always fit neatly into a checklist. If your experience aligns with many of the areas below, we'd encourage you to apply.
- Experience developing software, automation, tooling or engineering solutions.
- Understanding of software engineering principles and modern development practices.
- Experience working within Agile software delivery environments.
- Ability to analyse complex technical problems and develop practical solutions.
- Experience collaborating with multidisciplinary teams to deliver successful outcomes.
- Strong communication and stakeholder engagement skills.
- Commitment to continuous learning and engineering excellence.
- Ability to obtain and maintain UK Developed Vetting (DV) security clearance.
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Desirable Skills / Experience
We're particularly interested in candidates with experience in one or more of the following areas:
- Test automation and quality engineering.
- Continuous Integration and Continuous Delivery (CI/CD).
- Performance, reliability or resilience engineering.
- Platform engineering and developer tooling.
- Cloud-native or distributed systems.
- Infrastructure and environment automation.
- Observability, monitoring and diagnostics.
- Secure or highly assured technology environments.
Our Package
When you join our team, you'll play a role in delivering work that makes a real difference across the UK. In return, you'll be rewarded with a market-leading Total Reward package that reflects the value of your skills and expertise. From structured technical progression and industry-recognised training to generous family support and flexible benefits, we're committed to helping our people succeed at every stage of their career journey.
- A structured Technical Progression Pathway to recognise and reward appropriate technical people.
- Competitive DV market aligned salaries
- Tiered role based DV allowance of up to £5k per annum paid monthly
- World-class training and development opportunities
- 10% on target bonus
- 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.
- BT Pension scheme, minimum 5% Employee contribution, BT contribution 10%
- New BT Better Workplace working environments at strategic locations across the UK
- Huge range of flexible benefits including an EV salary sacrifice, cycle to work, healthcare, season ticket loan, additional annual leave
- On-call allowance (Depending on role requirements)
- Access to 100’s of retail discounts including the BT shop
- 24/7 private virtual GP appointments for UK colleagues
- Option to join BT Shares Saving schemes
- 25 days annual leave (not including bank holidays), increasing with service
- 2 weeks paid carer’s leave
- Discounted broadband, mobile and TV packages
- Enhanced life assurance of up to ten times base salary
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