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# Senior Reactor System Design Engineer

- **Company:** Rolls-Royce
- **Location:** Warrington, UK (Remote available)
- **Experience:** Expert
- **Salary:** £50,650.0 - £66,500.0
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, Configuration Management, Requirements Management, Software Requirements Analysis, Safety Critical Systems
- **Published:** September 10, 2026
- **Apply:** https://www.collegerecruiter.com/job/2840578719-senior-reactor-system-design-engineer

## About the Role

* Proven experience delivering complex system design work within nuclear or another highly regulated or safety-critical industry.
 * A degree in an engineering or relevant technical discipline, or equivalent industry experience.
 * Strong understanding of systems engineering principles, including requirements management, integration and structured design approaches.
 * Practical experience in mechanical or process system design, such as fluid systems, HVAC, chemical or plant-based systems.
 * Confidence in producing and reviewing detailed technical documentation such as P&IDs, calculations and design substantiation reports.
 * Strong communication skills with the ability to engage and build credibility across multidisciplinary teams and stakeholders.
 * A collaborative and proactive approach, with the ability to lead technical work, solve problems and support the development of others.

## Description

You will join the Reactor Plant and Systems team, a multidisciplinary engineering function responsible for the design and development of the systems that underpin the Reactor Island. The team brings together expertise across mechanical, fluid and safety-critical systems, working collaboratively to develop robust, licensable and high-performing designs. Operating within a highly regulated environment, the team plays a critical role in progressing the programme through detailed design and regulatory approval., As a Senior Reactor System Design Engineer, you will lead the development of complex process and mechanical system designs across the Reactor Island. You will translate high-level requirements into robust, evidence-based design solutions that meet stringent regulatory and safety expectations, and contribute to the whole lifecycle of system design from concept to licensing support., * Lead the delivery of system design packages to ensure technical robustness, alignment with programme requirements and on-time delivery.

 * Develop and manage system requirements, ensuring designs are clearly defined, traceable and supported by verification and evidence.
 * Produce high-quality engineering documentation, including design reports, system definitions and substantiation artefacts supporting safety cases and regulatory submissions.
 * Collaborate closely with internal teams and external stakeholders, including regulators, to resolve technical challenges and maintain programme momentum.
 * Identify and manage risks and opportunities within the design scope, ensuring effective mitigation and continuous improvement.
 * Apply design governance, configuration control and assurance processes to maintain consistency, quality and compliance.
 * Provide technical leadership and guidance to engineers, supporting capability growth and driving a high-performance team environment.


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