Fluid Systems Engineer- Nuclear

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As a Fluid Systems Engineer, you will join Bristol team to support our activities within the Nuclear sector. 

 You will work on high-profile projects such as Hinkley Point C, Sizewell C, and similar EPR nuclear power plant developments, with a specific focus on Nuclear Island buildings.

This role offers the opportunity to work on some of the most complex reinforced concrete and steel structures in the nuclear industry, collaborating within a multi-disciplinary and multi-cultural environment to deliver safe, resilient, and high-quality engineering solutions for our clients

• Location: Bristol 
• On Site:  3 days 
• Clearance: BPSS
• Experience Level:  3-10 YOE 

Key Responsibilities:

• Support delivery of fluid system design and integration activities for nuclear plant systems
• Provide technical leadership for assigned fluid systems across concept and detailed design phases
• Review and prepare System Design Manuals and associated engineering documentation
• Support development and update of system designs including:• P&IDs
• thermal-hydraulic calculations
• pump and pipework sizing
• pressure relief device calculations
• system safety features

• Populate and maintain engineering process databases including DIAGRAMS, TAGS2D, DFD, CONDUITE and BANANAS
• Produce documentation supporting plant operations and periodic testing activities
• Develop and manage requirements for Control & Instrumentation interfaces
• Coordinate supplier feedback and support design updates arising from contract activities
• Perform technical and peer reviews of engineering reports and technical documentation
• Collaborate with multidisciplinary engineering teams to ensure system integration and compliance
• Support engineering governance, safety and quality assurance processes
• Present technical solutions and system maturity at design and stakeholder reviews

Required Skills:

• Strong knowledge of fluid systems engineering principles
• Experience in system design and integration within regulated industries
• Experience producing and reviewing P&IDs and system engineering documentation
• Familiarity with thermal-hydraulic calculations and fluid system component sizing
• Experience preparing and reviewing technical reports and engineering deliverables
• Ability to coordinate with suppliers and multidisciplinary engineering teams
• Strong technical review and peer-checking capabilities
• Understanding of engineering governance and quality assurance processes
• Ability to manage technical priorities and escalate engineering risks appropriately

Required Qualifications:

• A Bachelor’s or Master’s degree in Mechanical, Process or Nuclear Engineering, or equivalent military experience.
• Eligibility to obtain UK security clearance (BPSS as a minimum)

Desirable Skills:

• Experience working on EPR nuclear power plant projects.
• Familiarity with BIM environments and multi-disciplinary coordination.
• Previous leadership or team management experience in complex engineering projects.

Why join us? 

We foster a community of dually talented individuals who are both entrepreneurs and technology specialists. Our teams embody the spirit of innovation and entrepreneurship, enabling us to develop solutions most efficiently. 

Our commitment to sustainable growth is unwavering, and we continuously strive for accelerated transformation and continuous improvement. Through ALTEN labs, mentoring programs, internal universities, and more, we are always pushing boundaries and embracing new possibilities. 

We offer incredible opportunities to join inspiring projects in the most innovative companies. 

We prioritise your career development with personalised support plans tailored to your own aspirations. We're here to empower you and help you reach your full potential. 

Join our passionate team and start building tomorrow, today! 

In short you get: 

• A personalised career path and a rewarding management style 
• A chance to work on the most exciting engineering projects and technologies along with Premium Customers
• A huge diversity of engineering projects and industries
• A competitive salary
• Private Medical & Travel Insurance
• Pension Scheme
• Cycle-to-work Scheme among many additional benefits
• Social atmosphere, regular gatherings, and team buildings
• Flexible way of working (role dependent)

We are proud to support the Armed Forces Covenant & actively encourage applications from members of the Armed Forces community, including veterans, reservists, service leavers, and military spouses/partners. We recognise the value of military skills and experience and are committed to ensuring that no applicant is unfairly disadvantaged during our recruitment and selection processes. 

ALTEN is committed to fostering a diverse and inclusive workplace and values the strength that comes from a global mix of backgrounds and perspectives. We welcome applications from all suitably qualified candidates, regardless of background or protected characteristics under the Equality Act 2010. If you require any reasonable adjustments during the recruitment process, please let us know. 

This role may require you to have or be willing to go through Security Clearance. As part of the onboarding process candidates will be asked to complete a Baseline Personnel Security Standard; details of the evidence required to apply may be found on the government website Gov.UK. If you are unable to meet this and any associated criteria, then your employment may be delayed, or rejected . Details of this will be discussed with you at interview.