Fluid System Design Engineer - Test Rig Design (Submarines)

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Derby, Derbyshire, England
In-Office
Aerospace • Defense
The Role

Job Description

Fluid System Design Engineer - Test Rig Design (Submarines)

Full Time

Derby

What you will be doing

Fluid System Design Engineers to undertake rig design to support both Verification and Validation (V&V) and production testing of Nuclear Steam Raising Plant components. The role involves working as part of Integrated Project Teams to design new and modify existing multi-million-pound test rig designs, the bulk of which are in our Test Laboratory at our main offices at Raynesway in Derby. 

Responsibilities

  • Generating requirements, scoping work, and planning tasks in conjunction with stakeholders.
  • Applying standard fluid flow and thermal hydraulic theory to inform and justify design decisions around system layout, component selection and sizing.  Examples include:
  • Development of operating philosophies and high-level control system logic 
  • Development of 1D system flow models, derivation of loss coefficients etc
  • Pump, valve (inc. safety relief) and heat exchanger sizing and selection.
  • Creation of Pipework and Instrumentation Diagrams (P&ID), and the associated valve and equipment schedules.

Why Rolls-Royce?

Work with us and we’ll welcome you into a culture of caring and belonging where you can be yourself. We will listen first, embrace feedback and act with integrity. We will invest in your continuous learning and development, and make sure you have access to a wide breadth and depth of opportunities to grow your career and make a difference.

We offer excellent development, a competitive salary and exceptional benefits. These include bonus, employee support assistance and employee discounts.

Hybrid working is a way in which our people can balance their time between the office, home or another remote location.  It’s a locally managed and flexed informal discretionary arrangement.  As a minimum we’re all expected to attend the workplace for collaboration and other specific reasons, frequency will depend on business needs, nature of role, what works for the team and for the individual. Discover more on our GBS Service Portal about hybrid working.

Who we’re looking for

Being a part of Rolls-Royce you’ll know we put safety first, do the right thing, keep it simple and make a difference.  These principles form our behaviours. They are an essential component of our assessment process and are fundamental qualities that we seek for all roles.

  • Experience of design of process plant facilities, such as oil and gas pipework systems or chemical process facilities, is desirable
  • Experience, where possible, in a relevant, heavily regulated industry, such as Chemical, Pharmaceutical, Energy, Water or Nuclear.
  • Experience of specifying, designing, justifying, or operating complex fluid/chemical process systems
  • Degree (or equivalent) in mechanical engineering, chemical engineering, or another science or engineering discipline with thermo-fluids content.
  • Track record of delivering solutions against specific customer requirements to time, cost, and quality.
  • Sound knowledge of engineering principles, process safety, and applicable codes & standards.
  • Understand of design process and design and safety assessment processes and tools e.g., HAZOP/HAZID/SWIFT/FMEAs etc.
  • Desirable to have experience in the use of 1D flow modelling software (specifically FloMaster).

Join us & help Rolls-Royce to become a high-performing, competitive, resilient business.

Please be aware that the priority will be given to employees identified as being at high risk. 

The professional level and the salary of the position will be dependent on the skills and experience of the successful candidate. 

It is advised that you inform your current manager of your application for this role.

We are an equal opportunities employer. We’re committed to developing a diverse workforce and an inclusive working environment. We believe that people from different backgrounds and cultures give us different perspectives. And the more perspectives we have, the more successful we’ll be. By building a culture of respect and appreciation, we give everyone who works here the opportunity to realise their full potential.

Learn more about our global Inclusion Strategy 

To work for the Rolls-Royce Submarines business an individual has to hold a Security Check clearance.  Rolls-Royce will support the application for Security Clearance if you do not currently already have this in place.  Due to the nature of work the business conducts and the protection of certain assets we can only progress applications from individuals who are a UK national or, in MoD approved cases, a dual national.

 

Grade: 7-9

Job Category

Validation and Verification

Posting Date

07 Nov 2025; 00:11Posting End Date21 Nov 2025

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The Company
HQ: London
40,000 Employees
Year Founded: 1906

What We Do

Delivering power and propulsion solutions in the air, at sea and on land.

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