Principal Civil/Structural Engineers UK wide

About the Opportunity

Amentum is a global leader in engineering, project and programme management and solutions integration. Founded on programme, project and engineering experience, combined with deep-seated specialist capabilities, Amentum has become a recognised delivery partner across major UK Government and commercial programmes.

We work with our clients, partners and communities to safely and cost-effectively deliver the right solutions. We’ve earned our customers’ trust to successfully manage and execute the most complex programmes of scale and provide them with solutions they need for an unpredictable world. Our Unique Capabilities include the following:

• Complex Programme Management

• Infrastructure Delivery Partner

• Nuclear Operations

• Facility Sustainment & Modernisation

• Engineering Management, Licensing & Commissioning

• Decommissioning

• Defence

• Energy Consulting

• Engineering, Installing, and Managing Innovative Solutions

• Nuclear Design and Engineering

• Energy Storage, Transmission & Distribution

• Thermal Generation & Distributed Heat

Due to continued growth are currently seeking Principal Civil/Structural Engineers to join our team, these positions support hybrid working and can be based across our office network within the UK - Stockton, Newcastle, Bristol, Gloucester, Glasgow, Westlakes and Warrington.

As a Principal CS&A Engineer your responsibilities could include:

• Leading a team of CS&A engineers and architects in the definition, implementation and delivery of specified functional works that achieves safety, functional and business requirements.

• Delivery of the civil, structural Engineering Design, including reinforced concrete structures, plated steel structures, maritime structures and specialized Nuclear facilities.

• Manage the interface to and between key Delivery Partners and the design team.

• Develop deliverables list and format (drawings, specifications, reports, etc.)

Why Amentum:

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 What You’ll Need:

• Good, accredited MEng degree in Civil Engineering or similar Chartered Civil or Structural Engineer

• Good all-round technical design expertise using British and international standards, and/or Eurocodes

• Background engineering experience demonstrating a record of successful delivery.

• Experience of working within a regulated and quality assured system.

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 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 the team. #CSA2026