Senior Mechanical Engineer

Jacobs; Cirencester; On-site; GBP 50,000 - 80,000; Full time

Job summary

A leading company in the nuclear sector seeks a Senior Mechanical Engineer to support their transformation projects. The position demands interaction with diverse stakeholders, adherence to engineering standards, and offers opportunities for personal and professional development in a dynamic environment.

Benefits

Free medical cover

Enhanced parental leave pay

Employee assistance programmes

Professional development reimbursement

Qualifications

• Experience in civil or nuclear industries.
• Ability to work in a regulated environment.
• Knowledge of HSSE standards.

Responsibilities

• Deliver complex engineering solutions within budget and quality standards.
• Contribute to all lifecycle phases of project delivery.
• Produce and review technical documentation.

Skills

Engineering design

Stakeholder management

Problem solving

Education

Mechanical Engineering degree

Job description

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Senior Mechanical Engineer -(EST0004QK)

Your Impact:

We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed – today and into tomorrow. We offer an exciting range of opportunities to develop your career within a supportive and diverse team who always strive to do the right thing for our people, clients, and communities.

People are our greatest asset, and we offer a competitive package to retain and attract the best talent.

In addition to the benefits you’d expect, UK employees also receive free single medical cover and digital GP service, family-friendly benefits such as enhanced parental leave pay and free membership of employee assistance and parental programmes, plus reimbursement towards relevant professional development and memberships. We also give back to our communities through our Collectively program which incorporates matched-funding, paid volunteering time and charitable donations.

About the Opportunity:

Amentum is currently recruiting for a Senior Mechanical Engineer to join our Energy business.

The department is entering an exciting phase of opportunity by supporting our key client’s UK nuclear fleet through a business transformation, and by supporting new small modular reactor developers. Our work is varied, covering New Build, Generation, Life Extension, and Defueling, and our capabilities are in demand across the nuclear sector.

The successful candidate must be highly motivated and proactive, looking to develop their technical capabilities.

Central to the success of the role will be your people skills, building effective relationships and interacting with multiple internal and external stakeholders in multiple locations.

This post is for those with experience working within the civil, nuclear or other highly regulated industries. Candidates will be familiar with working in a regulated environment, providing engineering support, and delivering work to high HSSE standards in compliance with HSSE regulations.

The role offers a good variety of work and opportunities to review design and design substantiation, produce calculations, advise on technical issues, and support refurbishment/modification projects to extend the life of plant & equipment.

Your role will be to deliver complex engineering solutions on time, within budget, and to high-quality standards across projects of varying sizes.

This role will be based at one of our Energy offices (Newcastle, Warrington, Gloucester, Bristol, or Knutsford). We prioritize flexibility and are open to flexible working patterns.

Key responsibilities will be:

• Contribute to project delivery teams across the project lifecycle from bid generation, through concept and detailed design development to installation and commissioning
• Work within integrated multi-disciplinary teams to deliver high-profile projects
• Take ownership of technical challenges, develop strategies, and implement solutions through engagement with stakeholders
• Produce and review design deliverables (assumption notes, technical specifications, calculation notes, technical reports, etc.)
• Build and manage client relationships to deliver ongoing opportunities and new business leads
• Demonstrate knowledge of practical aspects of engineering design, standards, and regulatory compliance
• Simplify complex problems and maintain valuable relationships

Here's What You'll Need:

Primary Location: United Kingdom, Knutsford, Booths Park

Travel: Yes, approximately 10%

Job Posting Date: June 2, 2025

Job Type: Mechanical Engineer, Full-time, Permanent

Organization: CMS

Work Locations: Booths Park, No 2, Chelford Rd, Knutsford, WA16 8QZ

Capabilities: Nuclear Existing Power Plants