Full-Stack Software Developer

Sanderson Government & Defence; Greater London; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A prominent government contractor in the UK is seeking a Full‑Stack Java Engineer for a high-profile government programme. The position requires strong expertise in Java, Spring Boot, and AWS, with responsibilities including building microservices, developing scalable APIs, and optimising SQL. The role offers a hybrid work model with competitive compensation of £520 per day, within a long-term framework extending until March 2026. Strong stakeholder engagement and communication skills are critical for success in this dynamic environment.

Qualifications

• Proven experience building and deploying backend services using Java and Spring Boot.
• Demonstrated ability to develop scalable APIs and optimise SQL for large datasets.
• Familiarity with DevOps practices and tools like Docker and AWS.

Responsibilities

• Build and deploy backend services with Java & Spring Boot.
• Develop scalable APIs.
• Optimise SQL for large datasets.
• Work with DevOps on Docker and AWS deployments.
• Shape architecture and technical direction.

Skills

Expert Java (8/11/17+)

Deep Spring Boot & microservices experience

Strong AWS skills (EC2, S3, Lambda, IAM)

Kafka / event‑driven systems

SQL optimisation

REST/JSON API design

Docker proficiency

Excellent communication skills

Job description

Role: Software Developer

Day Rate: £520p/d Inside IR35

Location: Central London (hybrid up to 2 days a week)

Clearance required: ACTIVE SC & NPPV3 clearance.

Duration: initial work package until March 2026 (scope for extension as a long‑term programme)

We're looking for an expert Full‑Stack Java Engineer to join a high‑profile, fast‑moving government programme with a fixed deadline. You'll work in a large team building microservices, scalable APIs, optimised SQL, and fully containerised deployments on AWS. You'll also collaborate directly with senior stakeholders, turning complex problems into tested, working solutions.

What You'll Do

• Build and deploy backend services with Java & Spring Boot
• Develop scalable APIs
• Optimise SQL for large datasets
• Work with DevOps on Docker and AWS deployments
• Shape architecture and technical direction
• Write clean, tested code and review others' work

What You'll Bring

• Expert Java (8/11/17+)
• Deep Spring Boot & microservices experience
• Strong AWS skills (EC2, S3, Lambda, IAM)
• Kafka / event‑driven systems
• SQL optimisation
• REST/JSON API design
• Docker proficiency
• Excellent communication skills

Nice to Have

• JavaScript / React
• Aurora / RDS

If you're proactive, outcomes‑driven, and thrive in high‑stakes environments with strong stakeholder engagement skills, then please get in touch - [e-mail]

Reasonable Adjustments

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.