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Hamiltonian Dynamics is a growing technology company working across Defence and Cyber Security, delivering software solutions that support critical national and enterprise systems. With teams based in Gloucestershire, Manchester, and London, we are entering an exciting new phase of expansion and are looking for Software Engineers to join us. This role offers the opportunity to work on meaningful, technically challenging projects while continuing to grow your skills in a supportive, flexible environment. Requirements As a Software Engineer at Hamiltonian Dynamics, you will design, build, and maintain secure, scalable software used by high-assurance customers. You’ll work across the full software development lifecycle, collaborating closely with engineers, architects, and stakeholders to deliver robust solutions. We’re open to engineers with different backgrounds and levels of experience - what matters most is strong engineering fundamentals, curiosity, and a willingness to learn. What You'll Do Design, develop, test, and maintain high-quality software systems Contribute to architectural decisions and technical direction Collaborate within agile teams to deliver secure and reliable solutions Work with modern cloud and containerised environments Share knowledge, review code, and support continuous improvement Skills & Experience You will have experience in one or more of the following areas but you do not need experience in everything listed: Java, Python, JavaScript, TypeScript Angular, React, Vue Docker, Kubernetes AWS and/or Azure MERN stack Elasticsearch, Neo4J We value engineers who are open-minded, adaptable, and keen to learn new technologies as project needs evolve. Security & Location You must be a UK citizen and have lived in the UK for the past 10 years You must already hold high-level UK security clearance Customer sites are based in Gloucestershire, Manchester, and London , so you must be willing to travel to one of these locations Benefits Salary band: £40,000-85,000, depending on experience (we may consider more junior or more senior outside this range for the right candidate) 10% clearance bonus 25 days annual leave plus bank holidays Buy or sell up to 5 days leave per year 8% employer pension contribution BUPA health cover Life cover of 4× salary EV car scheme via salary sacrifice EMI share scheme Flexible working and flexi-time 10 days per year training allowance Every employee has an individual training and career development plan. We recognise that everyone learns differently and we actively support long-term growth. Our Process We keep things straightforward and human: A 30-minute introductory chat with our recruiter, Sarah A 1-hour Microsoft Teams interview or on-site interview with two members of the team An informal conversation with two of our Founders We believe open, organic conversations are the best way for both sides to decide if the role is the right fit.