Senior Simulation Engineer

Locations: Hybrid working with one of the following locations as your primary site: Derby, Manchester or Warrington.

We anticipate paying a salary between £48,000 - £63,000 DOE.

We are Rolls-Royce SMR and we are revolutionising an industry. This is more than just a job; this is a legacy.

We are now recruiting for a Senior Simulation Engineer, to be involved in an industry-leading, cutting-edge design project for a new type of power station.

What you’ll be doing:

The Performance & Analysis team is the centre of excellence within Rolls-Royce SMR for the engineering analysis used to prove the performance and safety of the power station. The team are building whole-plant Engineering Simulators as part of their strategy, utilising Simulation Assisted Engineering for use cases spanning all aspects of design and development.

Reporting to the Simulation Development Manager, you will be involved in the development, validation and verification of software simulation models of nuclear power plant and C&I systems using suitable modelling tools and software validation and verification techniques. You will support the integration of simulation models within the overall simulation model architecture and the integration of the software simulation models with hardware simulation facilities. The simulation model will be used to support design activities, analysis campaigns, verification programmes, validate C&I systems, and train operators. You will support the development of the modelling and simulation environment, policies, procedures, and tool sets, and support the definition of hardware simulation facilities and processes and tools for integration.

The key responsibilities will include:

• Develop and quality assure dynamic models of plant and C&I systems.
• Contribute to the development of Simulator Assisted Engineering as an analysis method.
• Manage source code: Define and enforce version control strategies for several streams of simulator software workstreams using Git and Azure Repos.
• Promote an agile DevOps culture: Work closely with cross-functional teams, including analysis model developers and plant system owners to streamline collaboration and improve the delivery process.

You will join a growing specialist Simulation development team of 4 which has further growth plans throughout 2026 & beyond. As a senior engineer, you may be required to lead small teams of 1-3 engineers, providing technical supervision, direction and mentorship. You may be required to lead Integrated Project teams for specific activities.

Key Requirements & Experience:

• Proven experience in Software Engineering within agile environments, dynamic modelling (e.g. Simulink), and software verification/validation.
• Skilled in programming languages and hardware/software integration.
• Familiarity with control systems design and tools such as GSE SimExec, RELAP, JADE Suite is advantageous.
• A background in Systems Engineering, including concept development, data management, and requirements analysis.
• Experience in cross-functional collaboration, working with diverse teams and external partners.
• Knowledge of safety-critical systems and relevant industry standards (e.g. IEC 61508, ISO 9001) is beneficial.
• Typically you will be Degree qualified in Computational Science, Engineering, Physics, Mathematics, or similar.

Salary and Package:

• We anticipate paying a salary of between £48,000 - £63,000 DOE.
• Bonus - Performance related target opportunity 12.5%.
• Benefits Allowance – £2,200 per annum, enabling you to create a bespoke package.
• Pension - 12% employer and 6% employee contributions.
• Holidays - 28 days holiday (+ public holidays) and the ability to buy or sell up to 4 days.
• Private Medical Insurance - BUPA single cover health care.
• Life Assurance - 6x pensionable pay.
• £250 - One-off payment for new starters for home office purchases.

You’ll be joining a forward-thinking organisation that values transparency, fairness, and innovation. We offer:

• A flexible, inclusive, and supportive working environment.
• Opportunities for career growth in a rapidly scaling business.
• A culture that values diversity, innovation, and continuous learning.

We are an equal opportunities employer and welcome applications from all backgrounds. Inclusivity is important to us, and as a Disability Confident organisation, we are committed to fair, supportive, and continually improving recruitment practices that ensure everyone has the opportunity to thrive.

Confidence can sometimes hold us back from applying for a job. But there’s no such thing as a 'perfect' candidate. If you feel you meet 75% of the requirements for this role, we would love to hear from you. Also, if you are considering a career move or a sector-jump, please get in touch – we welcome applications from people with transferable skills.

Our Application Process:

Due to the safety regulations within the nuclear industry, applicants will be required to participate in additional screening. These are:

• Obtaining Baseline Personnel Security Standard (BPSS) clearance.
• Satisfactory completion of a Disclosure and Barring Service (DBS) check.
• Satisfactory completion of a basic financial probity check.

A career with Rolls-Royce SMR offers a unique opportunity to contribute to an exciting organisation delivering a transformational mission. Rolls-Royce SMR is a radically different approach to proven nuclear technology. Each Rolls-Royce SMR power station will generate 470MW of low-carbon energy - equivalent to more than 150 onshore wind turbines and enough to power a million homes for over 60 years. With its Rolls-Royce SMRs will play a vital role in supporting renewable energy by helping to overcome intermittency and ensure a stable, sustainable energy future.

We’re proud to be one of the few employers that can genuinely say we’re a strengths-based organisation. Our people are here because of what makes them exceptional - and our role is to help them make the most meaningful contribution of their careers, doing work they love. We offer opportunities that go beyond traditional career paths. At Rolls-Royce SMR you can develop your career by exploring roles and challenges that align with your unique talents.

At Rolls-Royce SMR, we are committed to ensuring that our teams reflect the communities we serve and that everyone can be themselves at work. We know that diverse teams are more innovative and get better results, and that our people can thrive and be more successful in truly inclusive cultures. Join us and help shape our culture.