About the CompanyAkkodis is a global leader in engineering, technology, and R&D, harnessing the power of connected data to drive digital transformation and innovation for a smarter, more sustainable future. Part of the Adecco Group, we unite the strengths of AKKA and Modis, with over 50,000 engineers and digital specialists operating in 30 countries across North America, EMEA, and APAC. Our multidisciplinary teams support organisations in sectors such as mobility, software services, cybersecurity, AI, and data analytics. Through Consulting, Solutions, Talents, and Academy services, we help clients rethink product development, optimise operations, and accelerate innovation.Do not wait to apply after reading this description a high application volume is expected for this opportunity.Pay range and compensation packageContract Type: Permanent (up to 72,000) or Contractor (Inside IR35, 5065 per hour)About the RoleAkkodis is seeking an experienced Model-Based Systems Engineer (MBSE) to join our team supporting advanced defence and communications programmes in Portsmouth. This position is ideal for engineers with strong Satcom and mission systems experience who want to play a key role in designing, modelling, and validating complex systems using MBSE methodologies. Youll contribute to the development of advanced mission and communication architectures defining, simulating, and validating system models to meet operational and performance requirements. Working closely with multi-disciplinary teams, youll ensure technical integrity and full lifecycle alignment from concept through to delivery.ResponsibilitiesDefine and maintain system baselines and architectures across the full lifecycle.Develop operational and system architectures within recognised frameworks (e.g., MODAF, NAF, DODAF).Create and maintain SysML/UML models in tools such as Enterprise Architect or Cameo.Ensure traceability between requirements, architecture, and design outputs.Conduct system-level analysis and trade studies to support key design decisions.Contribute to the simulation, verification, and validation of mission and Satcom systems.Apply MBSE principles to reduce design risk and support complex integration activities.Collaborate with systems, software, and hardware engineers to ensure technical consistency.Leverage Satcom experience to ensure effective integration of communication subsystems, RF components, and mission payload interfaces within system architecture.QualificationsWere looking for a systems engineer with practical experience in defence, communications, or aerospace environments and a proven ability to apply MBSE to real-world complex systems particularly within Satcom and mission system domains.Required SkillsProven Systems Engineering experience across the full lifecycle (requirements, design, V&V).Demonstrated expertise in Model-Based Systems Engineering (MBSE) using tools such as Enterprise Architect or Cameo.Strong background in Satcom, communications systems, or mission systems.Familiarity with architectural frameworks (MODAF, NAF, or DODAF).Hands-on experience with SysML/UML modelling techniques.Understanding of integration between software, hardware, and communications systems.Excellent communication and stakeholder engagement skills.Must be eligible for UK SC (Security Clearance) no visa sponsorship provided.Preferred SkillsExperience supporting defence or aerospace programmes.Knowledge of mission or communication architectures, system-of-systems integration, or RF communication subsystems. xjdpvnf Exposure to simulation and modelling tools for system performance analysis.
Job Title
System Engineer