BT Group
Senior Java Full-Stack Engineer
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Job Title: Senior Java Full-Stack Engineer
Req ID: 60154
Job Function: Software Engineering
Posting Start Date: 13/07/2026
Posting End Date: 24/07/2026
Division: Digital
Job Location: GBR-Birmingham-Three Snowhill
Advertised Salary: Competitive, with great BT benefits!
Job Req ID: 60154
Function: Software Engineering
Location: Birmingham
About The Role
At BT, we are building the next generation of digital experiences that support millions of customer interactions and business-critical services every day. As a Senior Java Full-Stack Engineer, you will play a key role in designing, developing and evolving the platforms, APIs and services that power our digital channels.
Working within a high-performing agile engineering team, you will be responsible for delivering scalable, secure and resilient microservices-based solutions using Java, Spring Boot and modern cloud-native technologies. While the primary focus of the role is backend engineering, you'll also have opportunities to contribute to customer-facing applications using React and modern front-end technologies.
This is an exciting opportunity to influence technical direction, champion engineering excellence and help shape the future of BT's digital platforms. You'll collaborate closely with architects, product teams, designers and fellow engineers to deliver exceptional customer experiences while mentoring engineers and contributing to a strong engineering culture.
This is a hybrid role based in Birmingham (Snowhill), with 3 days in the office and 2 days working from wherever works best for you.
What You’ll Be Doing
- Design, develop and maintain scalable microservices and backend applications using Java 17 and Spring Boot.
- Build, enhance and support RESTful APIs that power BT's digital products and customer experiences.
- Write clean, efficient and maintainable code aligned to engineering standards and best practices.
- Drive engineering excellence through code reviews, technical guidance and continuous improvement initiatives.
- Collaborate with architects, product owners, analysts, designers and engineers to deliver business outcomes.
- Contribute to front-end development activities using React and modern web technologies where required.
- Ensure solutions are secure, scalable, resilient and aligned to enterprise architecture standards.
- Support CI/CD practices, automation and DevOps ways of working to improve delivery efficiency.
- Lead technical discussions and influence engineering decisions within your squad and across the wider engineering community.
- Mentor junior engineers and help build a high-performing, collaborative engineering culture.
- Troubleshoot complex technical issues and drive resolution through strong analytical and problem-solving skills.
- Contribute to the adoption of cloud-native technologies, modern engineering practices and continuous innovation.
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Essential Skills / Experience
- 7+ years' experience delivering enterprise-scale software engineering solutions.
- Strong hands-on experience with Java 17, Spring Boot and microservices architecture.
- Experience designing and developing RESTful APIs.
- Strong understanding of software engineering principles, design patterns and best practices.
- Experience with CI/CD pipelines and tooling such as Jenkins.
- Experience using Git-based source control systems.
- Good understanding of cloud-native application development.
- Strong debugging, troubleshooting and problem-solving capabilities.
- Experience working within Agile delivery environments.
- Excellent communication and stakeholder collaboration skills.
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Desirable Skills / Experience
- Experience developing modern front-end applications using React.
- Knowledge of TypeScript, HTML5 and CSS3.
- Experience with AWS or other public cloud platforms.
- Experience working with GraphQL.
- Knowledge of Docker and Kubernetes.
- Experience with event-driven architectures and messaging technologies.
- Experience using observability and monitoring platforms such as Dynatrace, Grafana or CloudWatch.
- Experience working within payments, financial services or fintech environments.
- Understanding of payment ecosystems including payment gateways, digital wallets, Open Banking, card payments and BNPL solutions.
- Experience integrating with third-party payment providers and financial service APIs.
- Knowledge of payment security standards including PCI DSS, authentication and fraud prevention controls.
Our Package
- 10% on target annual bonus
- Access to an online private GP 24/7 for you and your immediate family
- Market-leading paid carers leave with up to 2 weeks off
- Equalised maternity, paternity, and adoption leave – 18 weeks’ full pay and 8 weeks’ half pay
- Discounted EE and BT products, including mobile and broadband
- Market leading Pension scheme – 5% from you and 10% from us
- Holiday purchase scheme
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