Product Definition Engineer

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Job Description

Job Title: Product Definition Engineer
Working Pattern: Days (Full time)
Working location: Bristol - Filton (Hybrid)

Product Definition Engineers are responsible for the output of high-quality Engineering Definitions and CAD Master Models across the UK Defence product base, ensuring that the technical and safety integrity of a design is maintained in accordance with company procedures. You will be creating and (where adequate capability has been demonstrated) checking the definition, as well as ensuring engineering standards are adhered to and design intent is met. You will also ensure that components satisfy fit, form and functional requirements and are optimised for manufacture.

You could be working within our Mature Programmes or Future Programmes environment. This will mean that the chosen individual will need to be capable of working with either existing legacy and fleet definitions / drawings or working on new component definitions being created wholly in a digital format (Model Based Definitions - MBD). Managing and maintaining data integrity is vital to this role, so attention to detail is an important quality.

You will be working in multi-disciplined teams, so it's essential that you have strong communication and interpersonal skills that will allow you to integrate with all people throughout the organisation, at all levels, to ensure the effective resolution of product definition related issues. There will also be potential to extend your skillset into adjacent disciplines, such as System Design, Component Design, Stress, Configuration Management and Repair Engineering.

Why join Rolls-Royce?
At Rolls-Royce we are proud to be a business that has truly helped to shape the modern world and are committed to always being a force for progress; powering, protecting and connecting people everywhere.
By joining Rolls-Royce, you'll have the opportunity to work on world-class solutions, supported by a culture that believes individuality is our greatest strength, and all perspectives, experiences and backgrounds help us innovate and enable our high-performance culture.

What you will be doing:
* Preparing, developing and maintaining 3D master CAD models, relevant documentation, Model Based Definitions (MBDs) or technical drawings to meet engineering standards and downstream requirements.
* Managing and incorporating Drawing Alteration Requests (DARs), concessions and continuous design updates.
* Creating specialised bespoke models for analysis or manufacturing purposes.
* Working collaboratively to ensure component definitions are aligned with design intent and manufacturability.
* Producing tolerance stack-ups to support new product validation and in-service investigations.
* Actively promoting, encouraging and supporting the identification and implementation of continuous improvement (of tools, processes, methods and guidance material).

Who we're looking for:
At Rolls-Royce we put safety first, do the right thing, keep it simple and make a difference. These principles form the behaviours that guide us and are an essential component of our assessment process. They are the fundamental qualities that we seek for all roles.

To be successful in this role, we are looking for:
* Proficiency in Siemens NX and Teamcenter (similar CAD and PLM tools will be considered).
* Experience using ISO/British Standard and/or ASME Y14.5 GD&T and drawing standards, as well as appropriate engineering experience in conceptual and detailed design and drafting techniques.
* Degree qualification in a STEM subject and/or relevant experience in an engineering environment (Mechanical, Aeronautical, Electrical or Controls). Other qualifications, in combination with relevant experience, may also be considered.
* Strong technical, analytical and problem-solving skills, with a systems-level mindset.
* Understanding of manufacturing processes.
* Ability to plan and deliver to challenging deadlines.
* Ability to work accurately and at pace.
* Self-motivation and an ability to drive for results.
* Strong communication and interpersonal skills to allow you to contribute effectively in a team environment.

To work for the Rolls-Royce Defence 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.

Our vision is to ensure that the excellence and ingenuity that shaped our history continues into our future. Our multi-year transformation programme aims to turn Rolls-Royce into a high-performing, competitive, resilient and growing company. Join us, and it can be your future vision too.

Rolls-Royce are committed to being a respectful, inclusive, and non-discriminatory workplace where individuality is valued, diverse perspectives fuel innovation, and everyone can thrive

Closing date: 29/04/2026

As part of our selection process, candidates in certain locations may be asked to complete an online assessment, which can include cognitive and behavioural aptitude testing relevant to the role. If required, full instructions for the next steps will be provided.

Job Category

Mechanical Systems

Posting Date

16 Apr 2026; 00:04

Posting End Date

29 Apr 2026