MESM CAT A2 and B Operator

KBR, Inc; Bristol; Hybrid; GBP 50,000 - 76,000; Full time

Benefits offered by this job

Flexible hybrid working

Company pension scheme

Private healthcare membership

Bonus scheme linked to company

Job summary

Frazer-Nash Consultancy is seeking MESM CAT A2/B operators experienced in submarine environments. The role offers hybrid working across UK sites, with time split between offices, client sites, and home.

Applicants should have background in submarine design, operation or safety and be prepared for pre-employment screening and security clearance. We offer a competitive salary range and a strong development culture, with opportunities to work on high-profile naval submarine programmes and related

Qualifications

• Experience as MESM Cat A2 or Cat B operator in submarine environments.
• Experience with submarine safety cases, hazard analysis, and ALARP-style risk reduction.
• Professional engineering status (Incorporated/Chartered) or working towards it; able to obtain UK security clearance.

Responsibilities

• Produce safety case documentation to underwrite submarine reactor plant operation.
• Support maintenance periods and lifecycle extension assessments for submarines.
• Contribute to safety and risk management across submarine projects and AUKUS-related work.
• Provide technical oversight to civil nuclear power stations during outages.

Skills

MESM Cat A2/Cat B operator

Submarine safety knowledge

Hazard analysis experience

Education

Incorporated Engineer or Chartered Engineer status

Job description

Title: MESM CAT A2 and B Operator

Title: MESM CAT A2 and B Operator

Salary range: £50,000 to £76,000 per annum depending on experience

Location: Glasgow, Plymouth, Bristol or Warrington - Other locations may be considered

Working Pattern: We operate a flexible hybrid working pattern at Frazer-Nash, with time split between the office, client sites and working from home

Closing date is 30th June 2026, but early application encouraged.

Do you have experience of working in submarine engineering or submarine safety?

Do you want to be regularly challenged and learn new things?

Do you want to work for a successful company where you are valued and can make a meaningful impact?

If you answered yes to these questions, then Frazer-Nash Consultancy is interested in hearing from you. Read on for more information about our exciting opportunities and, if you’re up for the challenge, submit your application to join our growing team!

We are a leading engineering, systems and technology consultancy. Through our meaningful innovations, our experts help organisations make lives safe, secure, sustainable and affordable. Our provision of high-quality support to the Royal Navy’s submarine programme is a great source of pride, and our continued success in this area means that we are actively seeking high calibre experienced MESM operators. We already have a great reputation and exciting portfolio of projects in the submarine domain. We are on the lookout for good people with transferable skills and experience to help us further grow this capability. We have a number of roles available across our technical axis, based in various locations around the UK and each with its own unique offering.

What will you be involved in?

Frazer-Nash offers excellent opportunities for individuals with a background in submarine design, modification, operation, maintenance or safety. Examples of projects that our submarine domain consultants have worked on in the last 12 months include:

• Producing safety case documentation to underwrite the operation of the naval nuclear reactor plant.
• Optimising the scope for maintenance periods.
• Assessment of submarine commission and life extensions.
• Supporting AUKUS.
• Embedded client roles supporting all class of submarines.
• Conducting safety hazard analysis to inform the design of a future submarines.
• Providing technical oversight (transferable skills) to support civil nuclear power stations during planned maintenance outages.
• Providing SM SQEP experience to support facility engineering and help future-proof critical shore side infrastructure.

If you have any of the following, then please apply now:

• Experienced MESM Cat A2/Cat B operators.
• Experience of working in the commercial industry in support of the submarine enterprise.
• Knowledge of submarine whole boat or nuclear safety cases and safety analysis techniques, including HAZID, hazard management, functional hazard assessment, categorisation and classification.
• Experience in risk management and reduction, including ALARP assessments.
• Familiarity with technical assurance/governance.
• Incorporated Engineer or Chartered Engineer status (or working towards this for our more junior roles).
• Due to the nature of the work that Frazer-Nash Consultancy undertakes, candidates will be required to undergo pre-employment screening and must be able to satisfy clearance criteria for UK National Security Vetting.

Benefits

• Competitive salary with yearly reviews
• 25 days holiday + the opportunity to buy 5 days.
• A company that has its heart in the right place and a welcoming work culture.
• Happy to talk flexible working
• Enhanced parental benefits
• Company pension scheme
• Targeted professional development
• Life assurance
• Private healthcare membership
• Bonus scheme linked into company performance
• Paid membership fees to a professional institution
• Support in attaining professional membership
• Cycle to work scheme
• Season rail ticket loan
• And further optional benefits you can tailor to your personal requirements

Frazer-Nash is a leading systems, engineering and technology company. We help organisations deliver innovative engineering and technology solutions to make lives safe, secure, sustainable, and affordable. With over 1000 employees, we work from a network of nine UK and four Australian locations. Our people apply their expertise to develop, enhance and protect our clients' critical assets, systems and processes. We use our skills and talents to ensure a sustainable future for society. Our work helps deliver a safe and secure world, where natural resources are conserved, and clean energy is available to all. And we focus on actions to reduce climate change; supporting rapid and far-reaching transformations in the delivery of energy, security, industry, and transport. At the heart of our business are a set of self-defined core values. These are part of our DNA and we’re committed to upholding them – internally as part of our Frazer-Nash family; in the way we work with our customers; and when we engage with the wider world. We care At Frazer-Nash, we care about each other; always looking to collaborate and see things from the other person’s point of view We offer mutual support, learn from one another, and work as a team to deliver the best results Everyone has a voice, and we all make the time to listen We will work with openness and collaborate effectively – thinking about our clients and our people, and responding to their needs We care about the difference we make to the wider world. We are trusted Effective collaboration is founded upon trust. We earn the trust of our customers and colleagues by delivering on the commitments we have made to them. We deliver success We deliver value and success to our customers and to our business. We continually strive to be the best at what we do. We want to do things that matter We seek out interesting and satisfying work that helps makes a difference in society We use our expertise to provide trusted, impartial professional advice to our clients By making a difference to today, we benefit the world of tomorrow – so we can all go home each day knowing that we’ve done something that really mattered.

Fraud Alert Fraud has infiltrated the job placement market via the internet, email and direct phone contact. Attempts have included unauthorized use of Frazer Nash’s name and logo to solicit potential job seekers or to extend false job offers. Bad actors may mix in fake job advertisements with legitimate postings. These ads can include contact instructions and require job seekers to send sensitive personal information or money to pay for visa applications, processing fees, etc., in exchange for consideration for a high-paying position. Frazer-Nash will never ask for any sort of advance payment as part of the recruiting/hiring process. Candidate profiles are carefully managed to protect personal information.