Senior Space Systems Engineer

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