We are seeking a highly experienced Senior Space Systems Engineer to support the design, development, and integration of complex space-based systems across telecommunications and positioning, navigation, and timing domains. This is a senior-level opportunity within a strategic engineering team focused on delivering high-performance, resilient global communication and navigation capabilities for mission-critical users. The role spans early concept studies through to full system development and delivery. You will be part of a multidisciplinary engineering environment, contributing to the growth of advanced systems engineering capability while helping shape next-generation space-enabled services. Key Responsibilities Lead and support technical activities across mission concept studies, research programmes, and full system development projects Conduct mission analysis, trade studies, and system architecture design Manage system and subsystem requirements capture, flow-down, and verification Develop and maintain system budgets (mass, power, data, thermal) and performance models Contribute to strategic development of PNT and telecommunications capabilities Support engagement with institutional and governmental space organisations and stakeholders Produce technical reports, bid documentation, and engineering recommendations for senior stakeholders Identify and manage programme risks, assumptions, dependencies, and technical issues Perform reliability, availability, and maintainability (RAMS) analysis of system architectures Apply Model-Based Systems Engineering (MBSE) tools and approaches to validate system designs Experience Required Degree-qualified in Physics, Engineering, Mathematics, or a related numerate discipline (or equivalent experience) Significant experience in systems engineering or system architecture roles within the space industry or a related sector Strong understanding of spacecraft systems, space mission operations, and spacecraft development (including AIT processes) Experience with system modelling tools such as STK, MATLAB, and MBSE platforms (e.g. Enterprise Architect) Knowledge of orbit determination techniques and space system analysis Strong understanding of project management and financial modelling principles Excellent communication skills, including technical writing and stakeholder presentations at all levels Membership of a professional engineering institution (e.g. INCOSE or equivalent) is desirable Desirable Experience Knowledge of PNT systems, GNSS, satellite-based augmentation systems, or time transfer techniques Experience with advanced space system operations and analysis methodologies Familiarity with alternative timing systems beyond GNSS-based solutions Exposure to large-scale international space or government programmes TT
