Our client, a leading organisation in the Defence and Security sector, is currently seeking a Senior Software Developer to join their team in Cheltenham on a permanent basis. This is an excellent opportunity to work on mission-focused projects, where your input will have a real-world impact.Key Responsibilities:Developing and maintaining software solutions using languages such as C++, Python, and LinuxImplementing containerisation using Helm and other relevant toolsCollaborating with cross-functional teams to design scalable and supportable systemsContributing to the overall system architecture and providing input on best practicesEngaging in continuous learning and professional development activitiesEnsuring the security and integrity of software solutionsTesting and debugging code to ensure high-quality deliverablesDocumenting software designs and ensuring comprehensive test coverageJob Requirements:Experience in software development using C++, Python, and LinuxProficiency in containerisation, particularly with HelmUnderstanding of telephony and internet protocols and standards is desirableExperience with Rust and GoLang is a plusActive or recently active DV clearanceStrong problem-solving and analytical skillsAbility to work effectively in a team-oriented environmentExcellent communication skillsBenefits:37.5 hour working week10% of the working week allocated to self-directed personal development25 days of leave (excluding public holidays)A strong commitment to work-life b