I'm looking for a Senior Systems Engineer to join a leading defence organisation based in Rochester. This is an opportunity to contribute to complex, high-impact engineering programmes within the defence, aerospace, and security sectors. You will work alongside a collaborative, multidisciplinary team to develop advanced technology solutions that operate across a wide range of environments, from subsea to space. The Role As a Senior Systems Engineer, you will play a central role in understanding and translating complex customer needs into structured, multi-level system requirements. You will lead the development of sophisticated system architectures using Model-Based Systems Engineering (MBSE) techniques and support the integration, analysis, and testing of real-time systems. The role carries responsibility for delivering technical work packages, ensuring outputs meet both technical standards and customer expectations. You will also contribute to the development of team capability through coaching and mentoring, while driving improvements in engineering practices through the adoption of modern methodologies such as Agile and 'Learn First' approaches. Key Responsibilities Capture, analyse, and manage complex customer requirements across multiple system levels Develop system and sub-system architectures using MBSE approaches Support integration, analysis, and testing of real-time systems across electronic, mechanical, optical, and software domains Lead and deliver technical work packages, ensuring alignment with programme objectives Engage with customers and suppliers to ensure technical requirements are clearly understood and satisfied Provide guidance, coaching, and mentorship to other engineers Essential Skills & Experience Proven experience in requirements management, system design, modelling, and simulation Proficiency with tools such as DOORS, Siemens Polarion, Enterprise Architect, MATLAB, and/or Simulink Experience applying modelling methodologies such as SysML Strong stakeholder engagement skills, including customer and supplier interaction Degree (or equivalent) in a relevant scientific or engineering discipline (e.g., Systems Engineering, Electronic Engineering, Physics, Mathematics) Desirable Skills Experience in integration, verification, and validation of real-time and/or safety-critical systems Understanding of safety assessment processes and their influence on system design The Team You will join a Systems Engineering function delivering products across a diverse portfolio of commercial and military platforms, including advanced display technologies and safety-critical control systems. Engineers are encouraged to broaden their experience across multiple domains, with opportunities to develop as subject matter experts in specific product areas or systems engineering disciplines. What's on Offer Meaningful, technically challenging work on advanced systems Opportunities for continuous learning and career development A collaborative and supportive team environment A strong focus on work-life balance and employee well-being Security Requirements You MUST be eligible for Security Check (SC) Clearance, as per UK Security Vetting rules and requirements. The salary is £50,000 to £60,000 plus benefits