Backend Software Engineer - National Security Join a growing and trusted supplier within the National Security domain, where your work directly strengthens the UK’s ability to stay safe, resilient and ahead of emerging threats. We’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. Built on over a 70 year heritage, Roke offers specialist knowledge in sensors, communications, cyber, and AI and ML. We change the way organisations think and act – through dynamic insights from the analysis of multiple layers of data. We take care of the innovative, technical stuff that keeps everyone safe – that’s our mission, passion, and motivation. As a Backend Software Engineer, you’ll help deliver 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 systems, solving complex, real-world problems What you'll do Write clean, secure and maintainable backend code 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 Essential skills Python Linux Bash scripting Git Docker Nice to have Messaging or streaming technologies (e.g. Kafka or Apache Pulsar) Experience working in Agile/Scrum teams Tooling such as Atlassian or GitLab Exposure to CI/CD pipelines Why Roke You’ll work with smart, supportive people on projects that genuinely matter, in an environment that values technical excellence, collaboration and continuous learning. We invest in your growth, value diverse thinking and offer flexible working alongside a strong benefits package (including 30 days’ holiday plus bank holidays). Roke combines a 70 year heritage with the agility to make a real impact. Location ROMSEY - Located within beautiful Hampshire countryside, close to the picturesque New Forest District and not far from a superb stretch of the south coast. This is no corporate concrete jungle; this is a manor house site, with ample parking an on-site gym and a driveway full of daffodils in the spring. Clearances… This role requires candidates to hold valid DV clearance. If you don’t currently hold DV but do meet the eligibility criteria, we’d love you to explore other engineering opportunities on our Careers Page: https://www.roke.co.uk/careers/ Eligibility criteria: please refer to the www.gov.uk website for more information