Normal operations, when the reactor must produce power and respond to changes in demand from the grid.
Operating transients such as shutting down the reactor and then restarting it for refuelling.
Requirements
python
relap
chartered engineer
leadership
verification
dbs check
Strong understanding of fluid dynamics and thermal processes, with experience applying structured, methodical analysis approaches.
Experience in verification and validation of analysis models, including benchmarking, uncertainty quantification, and adherence to software QA processes.
Proven ability to develop analysis methods, models, and tools, including Python-based solutions, to support design and safety case development.
Satisfactory completion of a Disclosure and Barring Service (DBS) check
Track record of delivering analysis tasks to time, cost, and quality, with strong communication and leadership skills.
Hands-on experience using industry-standard fluids and thermal analysis software; familiarity with nuclear thermal hydraulics tools (RELAP, FLOMASTER, VIPRE, CTF, GOTHIC) desirable.
Obtaining Baseline Personnel Security Standard (BPSS) clearance
Skilled in writing clear, structured analysis reports and contributing to safety case documentation.
Degree-qualified in Engineering, Physics, Mathematics, or Computer Science; Chartered Engineer (or equivalent) preferred.
Satisfactory completion of a basic financial probity check
Knowledge of safety-critical plant systems in industries such as nuclear, oil & gas, or aerospace; nuclear-specific knowledge desirable but not essential.
Benefits
Pension - 12% employer and 6% employee contributions.
Private Medical Insurance - BUPA single cover health care
£250 - One-off payment for new starters for home office purchases
We anticipate paying a salary between £48,000-£63,000 DOE
A flexible, inclusive, and supportive working environment.
Life Assurance - 6x pensionable pay
Benefits Allowance – £2,200 per annum, enabling you to create a bespoke package
Holidays - 28 days holiday (+ public holidays) and the ability to buy or sell up to 4 days.
Bonus - Performance related target opportunity 12.5%
Opportunities for career growth in a rapidly scaling business.
Training + Development
Information not given or found
Interview process
Information not given or found
Visa Sponsorship
Information not given or found
Security clearance
baseline personnel security standard (bpss) clearance
disclosure and barring service (dbs) check
basic financial probity check
Company
Overview
470 MWe
Nuclear Reactor Capacity
Output capacity of the pressurized water reactors designed by the company.
90% factory-built
Manufacturing Efficiency
Modules are almost entirely constructed in factories, reducing on-site complexity.
June 2025
Regulatory Milestone
The company successfully passed early regulatory milestones and won the UK government’s SMR competition.
1 million homes
Energy Supply
Each reactor is capable of powering a million homes for 60 years.
A team of 15 engineers at Rolls‑Royce began designing a compact, scalable nuclear solution in 2016.
Blends decades of naval reactor experience with advanced manufacturing.
Modules are nearly 90% factory‑built across 1,500 parts, then shipped and assembled on site—cutting costs, time and complexity.
The company uses a boron-free primary circuit, eliminating toxic boric acid and reducing water use and waste.
Backed by strategic investors and partners like ČEZ and Siemens Energy to support global rollout.
Positions itself as a repeatable, investable product offering dependable 'always-on' clean energy to grids and industries.
Culture + Values
Innovative and forward-thinking.
Focused on safety, quality, and integrity.
Committed to delivering customer success.
Collaboration and teamwork across functions and regions.
A culture of continuous learning and development.
Driving a performance culture with a focus on results.
Empowering employees to make decisions and take responsibility.
Environment + Sustainability
2050
Net Zero Commitment
Committed to achieving Net Zero by the year 2050, aligning with global sustainability targets.
Focus on reducing carbon emissions through advanced nuclear technology.
Development of compact, small modular reactors (SMRs) to provide cleaner, low-carbon energy.
Sustainability goals to align with international frameworks such as the Paris Agreement.
Supporting the UK government’s energy transition strategy with clean, reliable energy solutions.
Inclusion & Diversity
Striving for greater gender balance in the workforce.
Creating an inclusive and respectful work environment.
Empowering diverse talent to contribute at all levels of the organization.