Lead Marine SMR Neutronics & Shielding Engineer

Bluecore Energy HQ; Long Beach (CA); On-site; USD 180,000 - 230,000; Full time

Benefits offered by this job

On-site Long Beach facility

Hands-on startup environment

Job summary

BlueCore Energy is seeking a Lead Reactor Physics & Shielding Engineer to own neutronics doctrine, core geometry, reactivity control, shutdown margins, and shielding analysis for marine compact PWRs aboard a barge in Long Beach, CA.

You will define dose mapping, source terms, and contribute across chapters 4, 5, and 15, while collaborating with cross-functional teams in a hands-on startup setting that values pragmatic, tested solutions.

Qualifications

• MS or PhD in Nuclear Engineering, Reactor Physics, Health Physics, or radiation transport.
• Hands-on production depth in a continuous-energy Monte-Carlo transport and criticality code such as CASMO/SIMULATE, SCALE, MCNP, Serpent, or OpenMC.
• Demonstrated radiation-transport shielding experience utilizing variance reduction tools like MAVRIC/Monaco, MCNP, or OpenMC.
• Experience with a lattice-physics or depletion code such as CASMO, SCALE, or Serpent.
• Proficiency with a nuclide-inventory and decay tool such as ORIGEN or an equivalent software.
• Deep understanding of NUREG-0800 SRP sections 4.2, 4.3, 9.1.1, 11.1, and 12.2-12.5.

Responsibilities

• Provide comprehensive neutronics support, establishing core geometry, enrichment, lattice, beryllium reflector, and rotating-drum control architecture.
• Own criticality, reactivity coefficients (MTC, Doppler), kinetics, depletion, and cycle length.
• Establish and own the shutdown-margin and criticality-safety cases across the full fuel life cycle, including fresh, in-core, spent, and storage phases.
• Maintain the criticality base deck and the SCALE calculation catalog.
• Develop core and coolant source terms, and set the activation and decommissioning source term.
• Design the primary and secondary shields, mapping both occupational and crew doses for a space-constrained vessel.
• Analyze deep-penetration radiation streaming through structural penetrations utilizing variance reduction techniques.
• Supply critical neutronics inputs to Chapters 4, 5, and 15, and calculate control-room and offsite design-basis accident (DBA) doses.

Skills

Nuclear Engineering

Reactor Physics

Monte Carlo transport

Criticality safety

CASMO/SIMULATE

OpenMC

MCNP

Serpent

Nureg-0800 SRP knowledge

Education

MS or PhD in Nuclear Engineering

Tools

CASMO/SIMULATE

SCALE

MCNP

Serpent

OpenMC

MAVRIC/Monaco

Job description

BlueCore Energy is seeking a Lead Reactor Physics & Shielding Engineer to own neutronics doctrine, core geometry, reactivity control, shutdown margins, and shielding analysis for marine compact PWRs aboard a barge in Long Beach, CA.

You will define dose mapping, source terms, and contribute across chapters 4, 5, and 15, while collaborating with cross-functional teams in a hands-on startup setting that values pragmatic, tested solutions.