Software Engineer – Gloucester Cyber, Defence & Intelligence High Level of UK Government Security required for this position. Copello have partnered with a leading defence and cyber security business who are looking for an ambitious Software Engineer to join their Gloucester team. Whether youre a specialist or a versatile developer, youll have the chance to shape secure, mission-critical systems using the latest in Java, Python, Linux, DevSecOps, CI/CD, AWS, React, and more. Youll contribute to every phase of the development lifecycle — from concept to deployment — while helping drive the evolution of cloud-based architectures. What’s in it for you? Salary of £50,000 - £85,000 (depending on experience) Flexible, hybrid working options Opportunities to learn, grow, and lead A strong focus on work-life balance A generous benefits package You might thrive here if you have experience with: Agile development (SCRUM) Java (JUnit 5.x), Python, JavaScript/TypeScript Git, GitLab CI/CD, Docker, AWS (EC2, Lambda, EKS, etc.) MongoDB, Oracle, Hibernate, Elasticsearch, NiFi Mentoring junior developers