Senior Java Developer

Senior Java Developer – SC Cleared - £650 PD Hybrid | Manchester, Leeds, Birmingham or Newcastle | 12-Month Contract

Are you an experienced Senior Java Developer looking to work on one of the UK's largest and most impactful digital transformation programmes?

We're seeking multiple Senior Java Developers to join a high-performing Agile engineering team delivering large-scale digital services used by millions of people across the UK.

The ideal candidate will be SC cleared, with working knowledge of Jackson / JAX-RS and mocking frameworks such as Mockito & ActiveMQ or Kafka.

The Role As a Senior Java Developer, you'll work alongside Developers, Designers, Product Managers and Business Analysts to design, build and enhance highly available digital services. You'll play a key role in developing scalable microservices, improving engineering standards and contributing to the continuous evolution of modern platforms.

This is an excellent opportunity for engineers who enjoy solving complex technical challenges, working with modern technologies and embracing best practices such as pair programming, Test Driven Development and continuous delivery.

Key Responsibilities

Design, develop and maintain Java-based microservices

Build secure, scalable APIs for internal and external consumers

Develop robust automated test suites using TDD and BDD

Work within Agile delivery teams using modern engineering practices

Participate in pair programming and collaborative code reviews

Support Continuous Integration and Continuous Deployment (CI/CD) pipelines

Contribute to technical discussions, architecture and engineering improvements

Provide occasional 2nd line application support where required

Share knowledge and promote engineering best practice across the wider team

Essential Skills

Strong commercial experience with Java 21 (or later)

Excellent knowledge of Test Driven Development (TDD) and Behaviour Driven Development (BDD)

Experience building and supporting large-scale microservice architectures

Strong Agile delivery experience

Experience developing RESTful APIs

Experience building automated testing frameworks

Good understanding of Linux or Unix-based operating systems

Strong communication skills with both technical and non-technical stakeholders

Ability to learn new technologies quickly and adapt to changing priorities

Desirable Experience

Jackson

JAX-RS

Mockito or similar mocking frameworks

Kafka or ActiveMQ

MongoDB or other NoSQL databases

High-traffic, large-scale web applications

Large data processing and distributed systems

Responsive Web Design

What's on Offer?

12-month contract

Hybrid working (3 days per week onsite)

Opportunity to work on one of the UK's largest digital transformation programmes

Modern technology stack

Collaborative engineering culture focused on quality and continuous improvement

Long-term programme with multiple positions available

If you're an experienced Java Developer looking to work on meaningful, high-impact technology projects, we'd love to hear from you.