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Senior Complex Systems Engineer
? Locations: Bristol, Burton-on-Trent, Glasgow or Leatherhead
? Salary: £60,000 - £70,000 DOE
? Full time Permanent role

Join a cutting-edge engineering consultancy shaping the future of complex, safety-critical systems across Aerospace, Defence, Transport, and Industry. We’re looking for an experienced Senior Systems Engineer to deliver innovative solutions across a diverse portfolio of technically challenging projects.

The Opportunity:
As a Senior Complex Systems Engineer, you'll bring your expertise in systems design and systems engineering—particularly in software or complex electronic hardware—to lead and contribute to high-impact projects. From avionics re-certification to next-gen UAS architecture, you'll help deliver capability that’s secure, sustainable, and future-ready.
Key Responsibilities:
Develop and review safety-critical systems architectures
Support design decision-making using systems engineering principles
Deliver systems assurance and certification artefacts
Ensure compliance with relevant defence and civil standards
Collaborate with MOD, OEMs, Design Organisations, and supply chain stakeholders
Lead and manage projects, providing both technical direction and client consultancyWhat You’ll Bring:
Proven experience with software or complex electronic hardware (CEH) in safety-related systems
Familiarity with standards like ARP4754A, IEC 61508, DO-178C, DO-254, Def Stan 00-055/56
Experience with MBSE tools such as Cameo or Sparx EA
Systems modelling knowledge (e.g. UML/SysML)
Hands-on experience of system and safety lifecycles
Knowledge of MOD acquisition frameworks and certification strategies
Excellent stakeholder engagement and communication skills
Project management and technical leadership experienceDesirable Extras:
Degree in a relevant engineering or science field
Chartered Engineer status or working towards it
Familiarity with KiD and UK Defence protocolsWhat’s in It for You?
Competitive salary & performance-linked bonus
Hybrid/flexible working options
25 days holiday + bank holidays (with holiday buy scheme)
Private healthcare & life assurance
Pension scheme
Support for professional development and chartership
Cycle to work, rail season ticket loan, and share purchase schemes? Keywords:
Systems Engineer, Complex Electronic Hardware, Software Engineering, Systems Architecture, Safety-Critical Systems, ARP4754A, DO-178C, DO-254, IEC 61508, Def Stan 00-056, MBSE, SysML, UML, Cameo, Sparx EA, MOD Acquisition, Defence Engineering, V-model, Certification, Systems Assurance, Systems Design, Safety Engineering.

Electus Recruitment Solutions provides specialist engineering and technical recruitment solutions to a number of high technology industries. We thank you for your interest in this vacancy. If you don't hear from us within 7 working days please presume your application has been unsuccessful on this occasion. You are of course free to resubmit your CV/details in the future and we shall assess your suitability at that time.

? Due to the nature of work undertaken at our client's site, incumbents of these positions are required to meet special nationality rules and therefore these vacancies are only open to sole British Citizens.
Applicants who meet this criteria may also be required to undergo security clearance vetting to SC level.

This is a permanent position