We are seeking a Principal Embedded Software Engineer to join a highly technical team delivering advanced systems within the maritime and defence sector. This role offers the opportunity to work on complex programmes such as underwater platforms and sonar-based technologies, combining hands-on engineering with technical leadership. You will play a central role in shaping how embedded software is designed, developed, and delivered, driving best practices, supporting project execution, and helping to build a high-performing engineering capability. You will be responsible for leading embedded software activities across multiple projects, ensuring delivery is aligned with technical, quality, and programme requirements. Alongside this, you will contribute to the evolution of engineering processes, tools, and standards, helping to create a scalable and efficient development environment. Key Responsibilities Take ownership of embedded software delivery, from early concept through to verification and release Define and maintain software architectures, specifications, and design documentation Establish and improve engineering processes, standards, and development frameworks Lead planning, estimation, and execution of work packages, including support to bids and change requests Define test strategies and validation approaches, ensuring full traceability to requirements Work closely with hardware, firmware, and systems teams to ensure effec...