Senior Systems Engineer (Contract - 12 Months, Inside IR35) 12-month contract Inside IR35 Due to the nature of the programme, candidates must be eligible to undergo a high level of UK security vetting We are supporting a major UK programme delivering complex, high-integrity engineering solutions within a highly regulated environment in Aldermaston. This is an opportunity for an experienced Senior Systems Engineer to play a key role in advancing model-based systems engineering (MBSE) practices on a long-term programme of national importance. This role offers the chance to work on technically challenging systems, collaborating with multidisciplinary teams and senior stakeholders to drive innovation, consistency, and performance across engineering models and processes. Key Responsibilities Support and advance model-based systems engineering (MBSE) practices across requirements, interfaces, trade studies, integration, and analysis Maintain and manage engineering models to ensure consistency, quality, and usability across teams Enhance model deployment and reporting, including development of clear and accessible visualisations for stakeholders Contribute to the development, maturity, and integration of MBSE models with other tools and systems Produce and analyse performance metrics to identify trends and drive continuous improvement Engage with a broad range of stakeholders, including senior leaders and technical specialists Develop and implement verification strategies to ensure accuracy, traceability, and reliability of engineering data Support and maintain SQL databases, ensuring data integrity, availability, and performance Experience & Skills Required Strong background in systems engineering within complex or regulated environments Proven experience with MBSE tools and methodologies Experience working with data models, reporting, and visualisation techniques Knowledge of verification and validation processes within engineering frameworks Experience with SQL databases and data management Strong stakeholder engagement and communication skills