Matchtech are working closely with a UK defence technology organisation delivering secure communications and cyber solutions used in mission-critical environments. Their teams build high-assurance cryptographic and key management capabilities that enable the confidential exchange of sensitive information for customers operating across tactical and strategic settings.If you enjoy solving hard engineering problems where security, reliability, and real-world outcomes matter, this is a good fit. Important informationClearanceDue to the nature of the work, applicants will need to meet UK security clearance eligibility requirements (including UK residency criteria).DV clearance is required (you must be eligible and willing to obtain and maintain DV; SC is typically required first).Working arrangementFully onsite: please only apply if you can work onsite in MaidenheadThe role You''ll provide technical leadership in a software engineering team (typically 5 to 20 engineers) delivering multiple concurrent RandD and production programmes. The focus is on embedded and/or application software in secure environments, with end-to-end ownership across the software lifecycle (requirements through design, implementation, test, verification, deployment and support).You may also have line management responsibility (up to c. 5 engineers, depending on team structure). Key responsibilitiesLead the architecture, design, development, documentation, and testing of embedded and/or application software.