Senior Full Stack Engineer (Outside IR35)

Major Digital Transformation Programme – Senior Full-Stack Developers (SC Cleared)Start: ASAP

Location: Remote

Security: SC required (can start on BPSS while SC transfers)

Contact: 6 months (with potential of a long term 3 years of work) paying £550 to £600 a day (Outside IR35)

We’re looking Senior Full-Stack Developers for to join a multi-year digital transformation programme modernising the future of offender management technology. With a strong pipeline of work over the next three years, this role offers the opportunity to help build the next generation of justice digital services—cloud-native, scalable, resilient, and designed for real-world impact.

The E-Supervision platform is a key part of the Ministry of Justice’s long-term strategy to modernise public safety and rehabilitation. By joining this programme, you’ll be helping to build more reliable and resilient digital systems that enable frontline staff to make better-informed decisions while improving the effectiveness of supervision for individuals on probation.

The work you deliver will streamline check-ins, risk assessments and everyday supervision workflows, reducing the administrative burden on practitioners so they can focus more on people and less on manual processes. You’ll also play a vital role in replacing legacy systems, automating support processes, and introducing cloud-native, scalable services that significantly reduce operational overhead. The platform you help build will improve the quality and availability of real-time data across the justice system, enhancing risk assessment, compliance tracking, and decision-making.

This is more than software development, it’s a chance to design and deliver technology that protects the public, supports rehabilitation, and strengthens the future of digital justice services for years to come.

What You’ll Be Doing

• Designing and developing secure, production-ready software
• Building automated UI and API test frameworks
• Strengthening system reliability and reducing technical debt
• Improving support tooling and operational workflows
• Enhancing CI/CD pipelines and AWS infrastructure
• Working across frontend, backend, and cloud services
• Aligning with MoJ, GDS and HMPPS engineering standards

Tech StackFrontend: Express.js, TypeScript, Nunjucks

Backend: Kotlin, Spring Boot, REST APIs, event-driven architecture

Cloud & DevOps: AWS, Terraform, GitHub Actions, Docker, Kubernetes

Practices: TDD, pair programming, code reviews, secure-by-design, agile delivery

Who We’re Looking For

Communicative, proactive Senior Full-Stack Developers who enjoy modernising complex systems, improving engineering quality, and delivering mission-critical services that genuinely help people.