Senior Nuclear Engineer
About The Position
AMPERA is redefining clean energy with compact, ultra-safe nuclear systems that power AI, industry, and defense with zero emissions and unmatched reliability. Our modular micro-reactors combine the best of fusion and fission to deliver scalable, deployable, and inherently safe energy anywhere. As a fast-growing company, AMPERA blends the agility of a startup with the ambition of a global energy innovator. Joining us means becoming part of a bold mission to revolutionize how the world generates power through advanced nuclear design, safety innovation, and next-generation manufacturing. We are seeking highly skilled and motivated Senior Nuclear Engineers to join AMPERA’s advanced reactor development team. These engineers will play a critical role in the design, analysis, and validation of AMPERA’s compact micro-reactor systems — working at the intersection of nuclear physics, thermal-hydraulics, fuel systems, and materials science. This position offers an opportunity to work on first-of-a-kind technology that combines fusion-fission hybrid principles, advanced materials, and additive manufacturing to deliver the world’s safest, most efficient nuclear energy systems.
Requirements
- M.S. or Ph.D. in Nuclear Engineering, Mechanical Engineering, or related field.
- 7+ years of experience in nuclear systems design, reactor analysis, or related R&D.
- Expertise in neutronics, reactor physics, and/or thermal-hydraulics modeling.
- Familiarity with safety codes and design standards (ASME, NRC, DOE, ANSI/ANS).
- Strong problem-solving, leadership, and communication skills.
- U.S. citizenship or eligibility for security clearance may be required due to project sensitivity.
Nice To Haves
- Experience with small modular reactors (SMRs), micro-reactors, or advanced reactor concepts preferred.
Responsibilities
- Lead reactor system design and performance analysis using modern computational tools (e.g., MCNP, SCALE, RELAP5, OpenMC, or equivalent).
- Develop, model, and validate neutron transport, heat transfer, and thermal-fluid interactions for micro-reactor cores.
- Collaborate with cross-functional teams on the integration of fuel systems, control systems, and structural design.
- Evaluate reactor safety through probabilistic risk assessment and transient simulation.
- Support regulatory and licensing documentation for compliance with NRC, DOE, or DoD standards.
- Provide technical leadership and mentorship to junior engineers within the nuclear design group.
- Contribute to experimental testing programs and prototype validation.
Benefits
- 401(k)
- 401(k) matching
- Competitive salary
- Dental insurance
- Health insurance
- Paid time off
- Vision insurance
- Donation matching
- Employee discounts
- Opportunity for advancement
- Wellness resources
- Comprehensive benefits package including healthcare, dental, vision, STD, LTD, Life/AD&D and 401(k).
- Opportunity to pioneer advanced nuclear fuel technologies driving the next generation of clean energy.
- Collaborative, mission-driven environment that fosters technical excellence and innovation.
- Career advancement potential as AMPERA expands its fuel development and reactor manufacturing programs.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
