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Salary
≈ $39k – $83k per year (Estimated)
Location
Hybrid (Bristol, Glasgow, Reading, United Kingdom)
Visa
Licensed UK visa sponsor
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 25, 2026. First seen by Alion on Oct 21, 2026. Amentum scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Amentum is a US government and critical infrastructure services contractor headquartered in Chantilly, Virginia, providing engineering, technical, mission support and operations services in defense, intelligence, space, energy and environment markets. It has about 50,000 employees in more than 70 countries, is listed on the New York Stock Exchange, and absorbed PAE in 2022 before combining with the Jacobs critical mission solutions business in 2024. Openings include aerospace, GN&C and reliability engineers, aircraft workers, database administrators, software engineers, biometric enrollment specialists and paralegals.

About the opportunity:

The Defence Industry Solutions Sector is a growing sector and to meet this we are looking to recruit for a Safety Case Engineers with extensive experience in the development of safety justification for nuclear infrastructure to join our Defence & Security business. Candidates with similar safety case experience within high hazard industries and, or significant nuclear defence industry experience will be considered, where this compliments the existing team.

These roles will ideally be based close to our Theale, Bristol, Glasgow office in a hybrid working role, and there will be a need for periodic visits to client sites as projects require.

The Defence & Security business provides an exciting mixture of consultancy, design and engineering support, along with delivery of challenging Defence projects, to major clients in the UK at a variety of Sites across the nuclear and defence industries, including HMNB Clyde, HMNB Devonport, BAES Barrow and AWE Aldermaston. Overseas, we are delivering similarly interesting and exciting projects across the globe including projects for clients in the Middle East and Australia. Taking a lead role in the development of the appropriate and proportionate safety case including Nuclear, Product, Construction, Process and HSE.

  • Ensuring technical quality and excellence of your work
  • Regular communication with clients and other design team members and participation in Design Reviews, HAZOPs, HAZCONs, SHERAs and stakeholder meetings
  • Contributing to the development of designs for complex facilities, systems and equipment
  • Adherence and contribution to business and quality management systems
  • Operational and design safety, and developing good safety culture

Benefits:

At Amentum, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and sustainability. If you're passionate about making a real impact and want to be part of a community that values ethical excellence, this is the place where your ambition can thrive.

Here, we believe that success comes from continuously pushing boundaries and working together to deliver on our promises. We embrace challenges with confidence and are dedicated to creating a secure and vibrant future for all. 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 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. Work-life balance and flexibility is a key focus area for us. We’re happy to discuss hybrid, part-time and flexible working hours, patterns and locations to suit you and our business.

Here's is what you need:

  • Taking a lead role in the development of the appropriate and proportionate safety justification documentation case which will predominantly be including Nuclear but may also include, Product, Construction, Process and HSE
  • Ensuring technical quality and excellence of your work
  • Regular communication with clients and other design team members and participation in Design Reviews, HAZOPs, HAZCONs, SHERAs and stakeholder meetings
  • Contributing to the development of safety requirements within the designs for complex facilities, systems and equipment
  • Adherence and contribution to business and quality management systems
  • Operational and design safety, and developing a good safety culture
  • Self-starter, ability to guide and lead others within the team

Our Culture

Our values are built on a strong foundation of safety, integrity, and respect for every individual. People are at the heart of our mission, and we believe in supporting one another through a culture of care and collaboration.

We strive to create a workplace where everyone feels they belong and can thrive. Supporting mental wellbeing and fostering a sense of connection are essential to how we work.

When we embrace different perspectives and work together, we become more innovative, more agile, and more successful.

We partner with VERCIDA, for greater online accessibility please visit www.vercida.com to view and access our roles. As a Disability Confident employer, we will interview all disabled applicants who meet the minimum criteria for a vacancy. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role.

If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact [email protected].

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