Reactor Physics & Neutronics Engineer
Pubblicato il 26-09-2026 - Taleez 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 inreactor 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 alicensing submittalor 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.
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