About the Role
Deep Fission is revolutionizing the nuclear energy sector by developing the worlds first deep borehole pressurized water reactor (PWR). As a publicly traded company that retains the high-speed innovation and agility of a startup, we are uniquely positioned to bridge the gap between advanced nuclear concepts and commercial reality. We are seeking a highly skilled Nuclear Engineer III specializing in Nuclear Safety Analysis to join our growing team. This role is fundamental to our success, as you will provide the technical rigor and analytical depth required to ensure our proprietary reactor technology meets and exceeds stringent safety standards while navigating the complexities of the U.S. Nuclear Regulatory Commission (NRC) licensing process.
In this pivotal position, you will be responsible for the high-level design and safety evaluation of our deep borehole reactor systems. This is not just a typical engineering role; it is an opportunity to contribute to a first-of-a-kind technology that leverages the earth's natural geological features for enhanced safety and efficiency. You will apply advanced engineering principles to conduct complex calculations and simulations, ensuring that every aspect of our core design, shielding, and criticality control is optimized for long-term operational success. If you are passionate about nuclear innovation and thrive in a remote-first, collaborative environment, we invite you to lead the next phase of our engineering journey.
Key Responsibilities- Lead the execution of sophisticated design, analysis, and evaluation activities for the deep borehole pressurized water reactor, ensuring all technical outputs adhere to sound nuclear engineering principles.
- Perform comprehensive nuclear and radiological safety analyses to define the safety envelope of the reactor and support the development of safety basis documentation.
- Conduct detailed shielding design and radiation transport calculations to protect personnel and equipment, utilizing industry-standard modeling software.
- Perform reactivity and criticality control analyses to ensure safe reactor operation across all phases of the fuel cycle, including startup, steady-state, and shutdown conditions.
- Support the nuclear core design process by modeling neutronics behavior and optimizing fuel management strategies for the borehole environment.
- Prepare high-quality technical reports and documentation to support regulatory submittals and active engagement with the U.S. Nuclear Regulatory Commission (NRC).
- Collaborate with cross-functional teams, including mechanical, thermal-hydraulic, and structural engineers, to ensure integrated safety and performance throughout the reactor lifecycle.
- Evaluate and implement new computational tools or methodologies to improve the accuracy and efficiency of nuclear safety evaluations.
- Masters or Ph.D. in Nuclear Engineering or a closely related field is highly preferred; a Bachelors degree with significant industry experience will be considered.
- A minimum of 5 to 10 years of professional experience in nuclear reactor design, safety analysis, or a related technical capacity.
- Demonstrated expertise in using nuclear analysis codes such as MCNP, SCALE, ORIGEN, or similar reactor physics and shielding suites.
- In-depth understanding of NRC regulations, including 10 CFR Part 50 or Part 52, and the regulatory requirements for nuclear safety analysis.
- Strong background in radiological protection, criticality safety, and the physics of pressurized water reactors.
- Excellent analytical skills with the ability to solve complex engineering problems and present technical findings clearly to both technical and non-technical stakeholders.
- Experience working in a fast-paced, startup-style environment or on advanced reactor concepts is a significant plus.
- Self-motivated with the ability to work independently and effectively in a fully remote environment.
- Fully remote work culture, offering the flexibility to work from anywhere in the United States while staying connected through advanced collaboration tools.
- Competitive salary package complemented by performance-based incentives and equity options in a publicly traded nuclear technology leader.
- Comprehensive health, dental, and vision insurance plans for you and your dependents.
- Generous paid time off (PTO) and holiday schedule to promote a healthy work-life balance.
- Opportunity to work at the cutting edge of clean energy technology alongside a world-class team of nuclear experts and innovators.
- Professional development support and the chance to influence the future of the global energy landscape.