Senior Consultant – Complex Systems Engineering

Senior Consultant – Complex Systems Engineering

Join to apply for the Senior Consultant – Complex Systems Engineering role at Frazer-Nash Consultancy.

Title Senior Consultant – Complex Systems Engineering

Location Bristol, Burton-on-Trent, Glasgow, or Leatherhead

Salary £60,000 – £70,000 (depending on experience)

Closing Date 15th November 2025 – we encourage early applications

Shape the Future of High-Integrity Systems. At Frazer-Nash Consultancy, we work at the forefront of safety-critical, secure, and high-integrity systems. From advanced aerospace projects to national defence programmes, we help clients navigate complexity, assure safety, and deliver high-quality results.

We’re looking for a Senior Complex Systems Engineer to join our Digital Systems Assurance team. If you’re motivated by solving challenging problems and contributing to major programmes, this is your chance to refine your skills.

• Work across some of the UK’s most complex and innovative systems
• Collaborate with MOD, OEMs, Primes, and regulators
• Shape both in‑service and next‑gen technology – from autonomous air systems to complex avionics upgrades
• Have a voice at the table in both technical direction and strategic decisions
• Enjoy the variety and pace of consultancy life – where your skills help clients solve real‑world challenges with systems that must work first time, every time.

• Manage the development and assurance of high‑integrity, safety‑critical systems
• Provide systems engineering leadership across complex projects
• Guide clients through regulatory requirements (e.g. ARP
  4754A, DO‑178C, DO‑254)
• Support design and assurance strategies using MBSE and architecture modelling tools
• Engage with senior stakeholders to define and deliver impactful solutions
• Contribute to business development and proposal leadership
• Play a key role in national programmes (e.g. INVICTUS) and advanced autonomous technologies

• Experience in developing, assuring, or certifying safety‑critical systems (preferably aerospace, defence, or high‑integrity domains)
• Knowledge of key standards: ARP
  4754A, DO‑178C, DO‑254, DO‑326A, IEC 61508, or MOD DEF STANs (00‑055, 00‑056)
• Proficient systems thinking, with tools like Cameo, Sparx EA, SysML/UML, MBSE
• Effective communication and stakeholder engagement skills
• A strategic mindset – with the ability to shape programme‑level engineering outcomes

• Chartered Engineer (CEng) status (or working towards it)
• Degree in Systems Engineering, Computer Science, or a related discipline
• Experience navigating MOD acquisition frameworks or supporting OEMs/Primes

• Flexible Working:
  We are happy to discuss flexible working arrangements.
• Generous Holiday Entitlement: 25 days (plus bank holidays), with a holiday purchase scheme.
• Company Pension Scheme
• Targeted Professional Development
• Life Assurance
• Private Healthcare Membership
• Performance‑Linked Bonus Scheme
• Paid Membership Fees to a Professional Institution
• Support in Attaining Professional Membership
• Cycle to Work Scheme
• Share Purchase Scheme
• Season Rail Ticket Loan

Due to the nature of our work, candidates who meet UK National Security Vetting criteria will be required.

Mid‑Senior level

Full‑time

Engineering and Information Technology

Business Consulting and Services