Senior Systems Engineer Client : BAE Systems Site/Locations: Broad Oak, Portsmouth Duration : 12 months Working hours/pattern: 3-4 days on site per week (could change depending on the requirements of the role) Hourly Rate £50.79 PAYE or £68.55 Umbrella IR35 Status: Inside IR35 This role requires you to start on full SC Clearance Overview: We are looking for an experienced Senior Systems Engineer to join our Simulation & Training team, supporting the MEMIS programme. In this role, you will apply Systems Engineering principles across the full engineering lifecycle — from requirements definition and design through to integration, customer acceptance and in-service support. You will work on software-intensive Simulation Systems, primarily integrated onto COTS platforms. Key Responsibilities Apply Systems Engineering standards (ISO 15288 / ISO 12207) across the lifecycle Develop system and sub-system designs, including software and network architectures Manage and decompose requirements (e.g. DOORS Next) Support system integration, testing and customer acceptance Produce and review technical documentation Provide technical guidance within the team About You Degree (or equivalent experience) in a STEM discipline Experience delivering complex, software-based systems Strong understanding of Systems Engineering principles Familiar with requirements management and architectural modelling tools Experience in simulation systems or system modelling desirable