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Senior System Engineer

Senior System Engineer

iO AssociatesFarnborough
18 days ago
Job type
  • Full-time
Job description

Senior System Engineer | up to £80,000 | Farnborough - Hybrid

We are seeking a Senior System Engineer to join a high-profile government defence programme, working on systems vital to national security. This role offers the opportunity to work across the full engineering lifecycle in an agile environment, with a focus on Model-Based Systems Engineering (MBSE) and secure systems delivery.

Key Responsibilities :

  • Work with stakeholders, suppliers, and architects to define system-of-systems requirements.
  • Use MBSE tools to model functional requirements and system behaviours.
  • Lead technical derivation, compliance assessments, and requirements allocation.
  • Produce detailed engineering artefacts including designs, failure modes analysis, security documentation, and service management designs.
  • Support onboarding of services onto virtualised infrastructure.
  • Conduct system-level cost / benefit and technical trade studies.
  • Deliver milestone reviews and ensure engineering tasks align with programme scope.
  • Define and model interfaces, user scenarios, and security requirements.
  • Collaborate across agile teams to maintain design and architectural alignment.

Required Skills & Experience :

  • Strong expertise in architecture modelling tools (e.g. Sparx EA, MagicDraw Cameo).
  • Familiarity with frameworks and languages such as TOGAF, MODAF, NAF, SysML, Archimate.
  • Experience on large-scale, mission-critical integration programmes.
  • Skilled in system modelling, interface definition, and functional decomposition.
  • In-depth knowledge of requirements engineering (text and model-based).
  • Experience with secure systems design, including CIA principles and virtualised environments.
  • Strong stakeholder and supplier coordination abilities.
  • Proven ability to develop security artefacts (e.g. RMADs, SyOPS, ISMS, DART).
  • Minmum SC cleared, ideally DV cleared.
  • Desirable :

  • ITIL and knowledge of Service Management processes.
  • Background in Air Traffic Management or other safety-critical domains.
  • Experience with assurance and regulatory compliance across functional areas.
  • Willingness to challenge conventions and offer innovative solutions.
  • Confident communicator with clear written and verbal presentation skills.
  • This is a rare opportunity to play a key role in a strategically significant programme, delivering secure, high-assurance systems that make a real-world impact. If you thrive in complex, fast-paced engineering environments, we'd love to hear from you.

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    Senior System Engineer • Farnborough