Backend Software Engineer

Great ideas come from different minds.

That’s why we bring together engineers, scientists, analysts, and creatives from every background — and give them the trust, tools, and freedom to make a difference.

What connects us is the mission: solving meaningful problems and building capability that protects what matters most.

And as the challenges evolve, so do we — working on the technologies that will shape tomorrow, not just today.

Build mission-critical backend systems that help protect the UK.

Join Roke as a Backend Software Engineer working on high-performance network analysis platforms used in National Security environments.

W e’re a leading technology and engineering company supporting customers across National Security, Defence and Intelligence , delivering systems that operate in the most demanding and sensitive environments .

Our teams tackle some of the country’s most complex technical challenges - and as a Backend Software Engineer, you’ll be at the heart of solving them.

The mission

You’ll work on a network and packet analysis platform that processes high-volume data using technologies such as Python and Apache Pulsar.

This is critical to delivering mission - critical software used by National Security customers to keep the UK safe, secure and prosperous.

You’ll work on the feature development and maintenance of critical system s in this area , solv ing complex, real - world problems.

What you’ll build

• Write clean, secure and maintainable backend code in Python using the latest frameworks for processing large volumes of network data.
• Apply best practices for version control and DevOps principles.
• Translate designs into working software, from concept to production
• Contribute to code reviews and shared technical decisions
• Design, build, test and document robust backend services
• Apply appropriate patterns using proven and emerging technologies
• Stakeholder / customer engagement