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Job Title: Software Engineer
Req ID: 61475
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 and building software that has real-world impact, we'd love to hear from you.
We're growing our engineering teams and recruiting Software Developers at all experience levels to help tackle some of the most interesting challenges in cyber security. Whether you're designing intuitive user interfaces, developing cloud-native applications, building scalable backend services, processing large volumes of data, or working close to the operating system, you'll be creating technology that protects critical systems and makes a genuine difference.
You'll work closely with customers, stakeholders, and experienced engineers to turn complex problems into elegant solutions, while helping shape the technology, architecture, and direction of our products. Along the way, you'll have opportunities to learn new skills, deepen your expertise, and grow your career in a collaborative environment that values curiosity, innovation, and continuous learning.
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 excited by the opportunity to work across multiple areas of software engineering. You don't need to tick every box. If you're passionate about technology, enjoy learning, and have experience in some of the technologies or disciplines we've described, we encourage you to apply. We're interested in people with strong fundamentals, an appetite for solving challenging problems, and the ambition to continually develop their skills. If you're equally excited by the prospect of building a polished user interface, designing backend services, analysing system performance, working with cloud-native platforms, or exploring how software works under the hood, you'll fit right in.
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Examples of what we expect from our developers include:
Software development
- Develop resilient, well tested code
- Perform code reviews & work with team members to ensure code quality standards are met
- Keep up to date with the latest best practices
Frontend Development
- Create powerful, flexible user interfaces for a technical user base
- Engage with end users to understand their needs and design user interfaces
Backend Development
- Ensure the platform meets performance, availability, and reliability SLAs
- Proactively identify and resolve performance bottlenecks and risks in production environments.
- Maintain and improve monitoring, logging, and alerting frameworks to detect and prevent incidents.
Automation and Efficiency
- Build and maintain tools to automate routine tasks, such as deployments, scaling, and failover.
- Contribute to CI/CD pipeline improvements for faster and more reliable software delivery.
Team
- Identify and contribute to the improvement of inefficient ways of working
- Actively contribute and engage in knowledge sharing activities
Essential Skills / Experience
If you have experience in one or more of these areas, we'd encourage you to apply:
- Software Development, Programming or Scripting
- Software Testing and Dev Ops
- Using collaboration tools like Jira and Confluence
- Source code management using Git-based platforms such as GitHub, GitLab or Bitbucket
- Experience working within Agile software development teams
- Experience of test and infrastructure automation using associated frameworks
Desirable Skills / Experience
We'd particularly love to hear from candidates interested in one or more of the following:
- Mobile Development
- Reverse engineering
- Vulnerability research
- Software security
- Distributed and resilient data processing systems
- High-performance computing
- Operating systems and software internals
- Designing accessible, efficient, and intuitive user interfaces
- Automation and platform engineering
- Containerisation and cloud-native technologies
Programming Languages:
- C, C++
- C# or Java
- JavaScript / TypeScript
- Objective-C
- Python
- Scala
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We're not looking for expertise in every language listed above. Strong software engineering fundamentals, curiosity, and a willingness to learn are more important than experience with any specific technology. If you've worked extensively with one or more of these languages and are excited to expand your skillset, we'd love to hear from you.
Platforms & Operating Systems:
- Linux
- Windows
- macOS, iOS
- Kubernetes
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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