Job Title: Principal Engineer - Communications Location: Barrow, Hybrid We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: Competitive 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. What you will be doing: In this role, you will lead the design and delivery of communications and audio systems for naval vessels, defining system requirements and engineering standards to develop effective solutions for complex submarine environments. You will produce technical documentation, develop testing protocols and support installation and commissioning activities. You will analyse test results, conduct technical studies to validate system performance, and collaborate with engineering and project teams on cost estimation, risk assessments and mitigation strategies, while supporting Factory Acceptance Testing to ensure equipment quality before installation. Core duties: Lead the design and integration of communications and