Senior Systems Engineer Livingston or Glenrothes (Hybrid – minimum 3 days onsite) – 12 months (Inside IR35) BPSS needed (SC is ideal) Overview An exciting opportunity for an experienced Senior Systems Engineer to join a high-performing Weapons & Sensors engineering team, supporting the delivery of complex programmes for UK-based customers. Reporting to the Senior Programme Manager within the Power Development Team, the role spans the full product lifecycle and involves working within a collaborative, multi-disciplinary environment using modern digital engineering approaches. This position offers strong professional development opportunities within a growing defence-focused engineering environment. Key Responsibilities * Requirements Management: Capture, analyse, and manage system requirements, ensuring they are clearly defined, verifiable, and traceable throughout the lifecycle. * System Design: Develop and optimise system architectures and components, balancing performance, cost, size, and other constraints. * Interface Management: Manage technical interfaces between subsystems and external systems, ensuring interoperability and performance targets are achieved. * Integration, Verification & Validation (IV&V): Develop and execute IV&V strategies, ensuring compliance with requirements through structured testing and validation. * Product Qualification: Lead certification and qualification activities to ensure systems meet relevant defence/aerospace standards for operational deployment. * Collaborate with multidisciplinary teams including software, electrical, and mechanical engineers, as well as project stakeholders. * Support root cause analysis and resolution of system-level issues. * Provide technical leadership and mentorship to junior engineers. Essential Skills & Experience * Bachelor’s degree (or higher) in Systems Engineering, Aerospace Engineering, Electrical Engineering, or a related discipline. * Proven experience within the defence or aerospace sector. * Demonstrated expertise in: * Requirements management * System design * Interface management * Integration, Verification & Validation (IV&V) * Product qualification * Familiarity with relevant defence and/or aerospace standards and regulations. * Experience using engineering tools for modelling, simulation, and analysis. * Strong technical leadership capability. Desirable Skills * Strong analytical and problem-solving abilities. * Excellent written and verbal communication skills. * Experience working in fast-paced, collaborative environments. * Familiarity with tools such as DOORS, MBSE methodologies, and MATLAB. * Experience leading or managing engineering teams