Job Title: Mechanical Engineer Location: Portsmouth Naval Base - working a hybrid pattern We offer a range of hybrid and flexible working arrangements. Please speak to your recruiter about the options for this particular role Salary: Circa £42,000 dependent on experience Who we are: Join BAE Systems and you''ll be part of something bigger. As a valued member of our global colleague network, you''ll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You''ll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow, shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space, there''s no limit to where a career at BAE Systems could take you. Role description: As a Mechanical Engineer, you will deliver key WTA (Warship Technical Authority) service elements across platform systems, including design change, technical assurance, material state and obsolescence management, specialist engineering support, and future support or transformation planning. Core duties: Providing mechanical engineering support across diverse platform systems, equipment, and critical marine services Delivering engineering input to multiple projects, including CSM platforms and international naval programmes Working with internal teams and external stakeholders to clarify and manage platform system requirements Maintaining systems design integrity across var