Amentum will 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.

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 opportunity

Energy Power Programmes are delivering client critical works to some of our major UK and European Projects. Our embedded teams are delivering support to Hinkley Point C (New build power station in the South West), Sizewell C (located in the South East), helping develop technologies in SMR (Small modular Reactor) capability and working towards building Poland's first Energy Power station.

Working in both client facing and internal roles we are delivering major programme and project management capabilities throughout the project lifecycle. We are driving to deliver safe, high quality and to time solutions by thinking innovatively and working collaboratively.

Are you an experienced engineer with strong process or fluid systems knowledge? Are you comfortable operating in a complex, fast-paced project environment where sound judgement, technical rigour, and leadership all matter? Join us at Hinkley Point C as we build the UK’s next generation of energy power.

As a Technical Lead Process Engineer , you will take a key role within the Fluid Systems team-providing technical leadership and oversight on the design and integration of process systems supporting HPC’s operation. You’ll use your engineering knowledge, problem-solving ability, and communication skills to steer technical resolution, manage risk, and ensure safe and functional system designs. Key responsibilities will be:

Technical Leadership

• Own and lead the system architecture for assigned Balance of Nuclear Island (BNI) fluid systems
• Provide expert-level guidance on system design, fluid mechanics, thermal-hydraulic modelling, and related technical topics
• Supervise and support system engineers on design queries, calculations, technical direction, and quality assurance
• Perform technical checking of system deliverables, design changes, and documentation
• Promote and embed a strong safety culture within the team

Project Integration & Stakeholder Engagement

• Drive resolution of technical open points and define specifications for required design changes
• Lead impact assessments, challenge design modifications, and ensure integration into system documentation
• Represent Fluid Systems in forums and committees to achieve cross-functional alignment on system performance, safety, and functionality
• Act as an interface between internal teams (system engineering, layout, nuclear safety, I&C, etc.) and external stakeholders (contractors, suppliers, NNB teams).

Delivery & Improvement

• Monitor progress against key engineering milestones and intervene when necessary to reduce risks and maintain schedule
• Identify delivery risks early and work collaboratively to resolve or escalate
• Contribute to continuous improvement through lessons learned, peer training, and enhancement of internal processes

Qualifications

• Degree in Mechanical or Process Engineering (or equivalent)
• 5-10+ years of experience in systems engineering, ideally in a nuclear or large-scale industrial project environment
• Proven understanding of thermal-hydraulics, fluid mechanics, and process engineering design
• Familiarity with UK regulations and safety standards related to fluid systems or BNI systems

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 and diversity in everything we do. We know that if we are inclusive, we’re more connected, and if we are diverse, 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 centered on inclusion and diversity.

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