Last EnergyEngineering · Last EnergySenior Nuclear Engineer
- Austin, TX
- On-site · Full-time
- Posted Nov 12, 2025
Last Energy is a fast-growing technology company redefining how nuclear power is designed, manufactured, and deployed. We are building a new generation of modular, distributed nuclear plants engineered for speed, scalability, and real-world impact.
We are seeking a Senior Nuclear Engineer to join our core engineering team and drive the analytical rigor behind our microreactor design. This role will act as both a technical leader and independent thinker, directly influencing design decisions that shape the future of energy.
Key Duties & Responsibilities
- Lead and perform complex thermal-hydraulic and neutronics calculations
- Independently verify and approve engineering calculations and safety analyses prepared by peers and junior engineers
- Provide expert-level review of design basis documents, licensing submittals, and technical evaluations
- Mentor and guide junior engineers in analytical methods and modeling techniques
- Develop and maintain detailed models for reactor systems and accident scenarios
- Participate in peer reviews and regulatory interactions as a technical authority
- Contribute to continuous improvement initiatives by identifying gaps and proposing innovative solutions
- Adapt quickly to evolving project needs, regulatory changes, and emergent technical challenges
Qualifications
- Bachelor’s or Master’s degree in Nuclear Engineering or a closely related discipline
- 8+ years of experience in nuclear systems analysis, safety analysis, or reactor physics
- Proficiency with at least two of the following codes: TRACE, MELCOR, MCNP, VERA, SCALE, SERPENT
- Demonstrated experience performing and reviewing complex engineering calculations
- Strong technical writing and communication skills, with the ability to present to both technical and non-technical audiences
- Department of Energy regulatory experience is preferred
About Last Energy
Last Energy is a nuclear energy solution that simplifies nuclear deployment by building, owning, and operating power plants for customers. They combine proven reactor technology with proprietary steel containment to deliver reliable on-site power.
