Salary: £70,000 - 80,000 per year Requirements: A degree or equivalent qualification in Engineering, Mathematics, Physics, or relevant industry experience. Proven expertise in Systems Engineering, including ISO/IEEE/IEC standards and the V lifecycle. Strong technical documentation skills and experience with tools such as DOORS, UML, Enterprise Architect, and SysML. Demonstrable experience in hardware, software, or firmware development, particularly in embedded environments. Leadership experience, managing and coaching teams to achieve project goals. Responsibilities: Implement and assure ISO 15288 processes across the full systems engineering life cycle on our projects. Enable and assure a consistent Systems Engineering approach across multi-discipline teams. Define stakeholder requirements, support delivery of the required products, and demonstrate compliance to customer satisfaction. Represent the Systems discipline as a senior leader, overseeing complex work packages and ensuring timely delivery. Collaborate with Engineering Project Leads to meet project obligations within budget and schedule. Develop and deliver high-quality Systems Engineering artefacts across the product lifecycle. Provide technical direction and influence across multiple projects, ensuring optimal solutions and designs. Lead internal and external design reviews, presenting to senior management and customers. Manage external suppliers and customers, ensuring compliance with agreed processes and objectives. Technologies: Architect Embedded Firmware Hardware Support Security UML More: We are a company at the forefront of defence technology, focused on innovation and excellence as we develop advanced systems that support security and trust on a global scale. This Principal Systems Engineer role is based onsite in Maidenhead and offers the opportunity to work on groundbreaking projects within a collaborative environment where your expertise will drive excellence and inspire others. Your CV will be forwarded to Jonathan Lee Recruitment, a leading engineering and manufacturing recruitment consultancy established in 1978. last updated 24 week of 2026