Reactor Physics & Neutronics Engineer in Pisa

Why this role is different

• Real scope, real ownership. A [team size] engineering team, not a 400-person division. Your core design decisions reach the CTO the same week you make them.

• Licensing-grade work. Your analyses become part of a formal NRC submittal – the highest-rigour environment in the industry, and a credential that follows you for the rest of your career.

• Two missions in one machine. Carbon-free power and isotope production for cancer diagnostics and treatment.

What you'll own

You’ll be the reactor physics authority on the MMR core – from first-principles modelling through to defending your numbers in front of a regulator.

• Core design & optimisation – define and iterate the core configuration, working the trade space between reactivity, thermal limits, cycle length and manufacturability.

• Neutronics analysis – criticality and reactivity coefficients, burnup and depletion, cross-section generation, flux and power distributions.

• Shielding & dose – shielding design, dose rate calculations, and validation of radiation barriers.

• Fuel cycle – fuel management strategy and fuel cycle analysis for a first-of-a-kind core.

• Licensing support – produce the analyses and technical documentation that support the NRC submittal, and engage directly with regulators and reviewers.

• Safety analysis – support risk assessment and failure mode analysis on reactor components alongside the safety team.

• Method & tool development – improve the models, workflows and verification practices the team will rely on for the next decade.
  

Essential

• MSc in Nuclear Engineering, Reactor Physics, or a closely related field.

• Strong grounding in reactor physics – you can explain why a core behaves the way your model says it does.

• Hands-on experience with at least one Monte Carlo or deterministic neutronics code: Serpent, MCNP, SCALE, PARCS, or equivalent.

• Working knowledge of nuclear safety principles and a regulatory framework (NRC, IAEA, or a national equivalent).

• The engineering judgement to know when a result is wrong before the reviewer tells you.

• Clear written English – your documentation will be read by regulators.

Nice to have (genuinely optional)

• PhD in reactor physics, neutronics, or radiation transport.

• Experience contributing to a licensing submittal or safety case.

• Micro-reactor, SMR, HTGR, molten salt or research-reactor experience.

• Radioisotope production experience.

• Scripting for automation and coupling (Python).

• Italian— useful for working with [the Italian engineering team / partners], not required.

Don't tick every box?

Apply anyway. Deep strength in core design and neutronics matters far more to us than a complete checklist.

#J-18808-Ljbffr