Building Architectural CEL

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 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.

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.

About the Role

The Contract Engineering Lead (CEL) is integrated within the Design Delivery Management - Site Buildings team and holds technical and design delivery accountability for the SZC2203 and SZC2205 contract buildings. The role is responsible for managing the end-to-end design delivery, from basic design through to detailed design, ensuring all outputs meet time, cost, quality, safety and scope requirements in a nuclear-regulated environment.

The CEL acts as Responsible Designer for the SZC2203/2205 contracts and provides day-to-day technical leadership, planning, coordination and risk mitigation across a complex, multi-disciplinary supply chain.

Buildings in Scope:

• HUC - Emergency Response Centre (HUM/HUD/HUC)
• HHE - Back-up Emergency Equipment Store
• HUA - Main Access Control Building
• HZC - Chemical Products Storage
• HZG - Oil & Grease Storage
• HUT - Off-Site Delivery Checkpoint
• HUB - Outage Access Control Building
• HHW / HHD / HSM / HHL - Slabs

Delivery is supported by an external design organisation and the wider SZC2203/2205 project team, including Building Leads, Mechanical & Electrical Leads, CDM Advisor, Nuclear Safety Lead and Architect.

Principal Accountabilities

• Design Leadership & Accountability
• Contract & Design Management
• Coordination & Technical Assurance
• Planning, Schedule & Deliverables Control
• Reviews, Change & Risk Management
• Commercial & Programme Interface
• Discipline Leadership

Here's What You'll Need

• Proven experience managing design delivery within nuclear safety and/or high-security environments.
• Demonstrated capability designing facilities to withstand internal and external hazards.
• Strong experience leading multi-disciplinary design coordination on large infrastructure projects.
• Solid technical understanding of building design, construction and UK standards.
• Detailed knowledge of RIBA Plan of Work (2013 or equivalent).
• Awareness of nuclear safety constraints, UK regulatory and CDM requirements.
• Strong leadership behaviours: accuracy, resilience, diplomacy, delivery focus.
• Excellent stakeholder engagement, communication and organisational skills.
• Ability to work independently, maintain discretion and manage sensitive information.
• High level of IT literacy and confidence with engineering software tools.

Qualifications & Experience

• Degree (or equivalent) in Civil, Structural, Architectural, Mechanical, Process or related Engineering discipline.
• Good knowledge of UK nuclear regulations and legislation.
• Ability to obtain or hold National Security Vetting - Counter Terrorism Check (NSV CTC).

Our Culture

Our values stand on a foundation of safety, integrity, inclusion and diversity. We put people at the heart of our business, and we genuinely believe that we all succeed by supporting one another through our culture of caring. We value positive mental health and a sense of belonging for all employees.

We aim to embed inclusion in everything we do. We know that if we are inclusive, we're more connected, and we're more creative. We accept people for who they are, regardless of age, disability, gender identity, gender expression, marital status, mental health, race, faith or belief, sexual orientation, socioeconomic background, and whether you're pregnant or on family leave. This is reflected in our wide range of Global Employee Networks.

We partner with VERCIDA to help us attract and retain diverse talent. 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