Senior Fullstack Software Engineer (Java, Spring Boot, Microservices)
Confirmed on the employer's own hiring board on Oct 24, 2026. First seen by Alion on Sep 16, 2026.
About The Role
Job Level: 9
UK Wide
We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture, development, and improvement of software systems. This role involves mentoring junior engineers, collaborating with cross-functional teams, and driving the adoption of best practices in software development.
Responsibilities
- Design, develop, and maintain complex software solutions, ensuring they are robust, secure, tested and scalable.
- Contribute to software architecture decisions, ensuring alignment with project and business goals.
- Mentor and support junior engineers, helping to develop their skills and promote best practices.
- Collaborate with cross-functional teams, including product management, UX/UI, DevOps, and QA, to ensure software meets business requirements.
- Implement and optimise CI/CD pipelines to enhance development efficiency and software quality.
- Conduct code reviews, providing constructive feedback to enhance team performance and code quality.
- Troubleshoot and resolve technical issues, ensuring software operates smoothly and efficiently.
- Stay current with industry trends and emerging technologies, recommending and integrating them where beneficial.
- Drive improvements in coding standards, testing, and documentation within the team.
- Engage in early-stage project discussions, providing technical insights and recommendations.
- Ensure that development processes are followed, and contribute to process optimisation initiatives.
- Communicate complex technical concepts effectively to non-technical stakeholders.
About You
Professional knowledge and experience
Essential
- Proven experience in full-stack software development, including design, development, testing, and deployment.
- Significant hands on experience with Java, Spring Boot and Microservices.
- Strong understanding of Agile and DevOps practices, with a focus on continuous integration and delivery.
- Some proficiency in one or more programming languages (e.g., Python, Java, JavaScript) and experience with software architecture patterns.
- Experience with cloud platforms (e.g., AWS, Azure, GCP) and infrastructure as code.
- Familiarity with CI/CD pipelines, automated testing, and modern software development practices.
- Knowledge of technologies such as microservices, containerisation (Docker, Kubernetes), or serverless architecture.
- Awareness of principles like well architected and secure by design
Desirable
- Previous experience in a senior engineering role, guiding teams to successful delivery.
- Proficiency in multiple programming languages
- Experience in central government advantageous
- Experience in a consulting environment
Skills
- Software Development
- Expertise in writing clean, maintainable code and optimising software for performance and scalability.
- Ability to design and implement software that meets business and technical requirements.
- Ensure all key business logic is covered by tests.
- Code Quality and Testing
- Proficient in automated testing frameworks and ensuring software is reliable and bug-free.
- Experience conducting code reviews and maintaining high coding standards within the team.
- Collaboration and Communication
- Effective at working with cross-functional teams to deliver project objectives.
- Strong skills in communicating technical concepts to diverse stakeholders, ensuring understanding and alignment.
- Continuous Improvement
- Passion for learning new technologies and improving software development processes.
- Drive to adopt new tools and methodologies that enhance team performance and software quality.
About Us
People-Powered Transformation
We're a purpose driven organisation, supporting organisations to build a better future for people, places and the planet. Combining vast experience in the public, private and third sectors and expertise in human-centred design, data, experience and technology, we’re creating sustainable solutions ready for an ever-evolving world.
At the heart of TPXimpact, we’re collaborative and empathetic. We’re a team of passionate people who care deeply about the work we do and the impact we have in the world. We know that change happens through people, with people and for people. That’s why we believe in people-powered transformation.
Working in close collaboration with our clients, we seek to understand their unique challenges, questioning assumptions and building in their teams the capabilities and confidence to continue learning, iterating and adapting.
Benefits Include:
- 30 days holiday + bank holidays
- 2 volunteer days for causes that you are passionate about
- Maternity/paternity - 6 months Maternity Leave, 3 months Paternity Leave
- Life assurance
- Employer pension contribution of 5%
- Health cash plan
- Personal learning and development budget
- Employee Assistance Programme
- Access to equity in the business through a Share Incentive Plan
- Green incentive programmes including Electric Vehicle Leasing and the Cycle to Work Scheme
- Financial advice
- Health assessments
About TPXimpact - Digital Transformation
We drive fundamental change in approaches to product and service development, delivery and technology. Our agile, multidisciplinary teams use technology, design and data to deliver better results, improving outcomes for individuals, organisations and communities.
By working in the open, in partnership with our clients, we not only transform their systems and services but also build the capability of their teams, so work can continue without us in the longer term. Our focus is sustainable change, always delivered with positive impact.
We’re an inclusive employer, and we care about diversity in our teams. Let us know in your application if you have accessibility requirements during the interview.