Principal Engineer, Heat Transport System (Nuclear Energy)

Location: Alameda, CA; Albuquerque, NM; Oak Ridge, TN; remote options are indicated. The role may require up to 25% travel, schedule flexibility, and extended hours during testing and commissioning. Access to DOE Part 810-controlled information requires US work authorization or applicable DOE licensing.

Salary: $175,000–$218,000 annually for employees working onsite at the Alameda, California headquarters.

Company

hirify.global develops fluoride-salt-cooled, high-temperature reactor technology for safe, affordable, and flexible clean-energy generation.

What you will do

• Design and deploy the KP-FHR nuclear heat recovery steam generator, including molten salt steam generators, salt pumps, valves, and auxiliary systems.
• Lead design trades, performance analyses, optimization, feasibility studies, and risk assessments for heat transport subsystems.
• Integrate the NHRSG with plant structures, systems, components, and operations while managing interfaces and verification activities.
• Coordinate external partners, suppliers, vendors, regulators, and technical deliverables.
• Develop technical specifications, system requirements, design bases, interface documents, drawings, test plans, and verification/validation plans.
• Support design reviews, supplier oversight, commissioning, testing, troubleshooting, and startup activities.

Requirements

• Master’s degree in Mechanical Engineering, Nuclear Engineering, or a related field.
• 10+ years of experience designing and developing power conversion systems, particularly in nuclear or thermal power.
• Experience deploying physical hardware in heat transfer systems and leading complex engineering projects or technical teams.
• Experience evaluating, designing, and licensing new technology, as well as using requirements management, systems engineering, or design control processes.
• Strong knowledge of heat transfer, thermodynamics, fluid mechanics, system integration, interface management, and verification/validation.
• Must meet DOE Part 810 authorization requirements for access to controlled information; foreign nationals from countries outside the general authorization list may require a DOE export-control license.

Nice to have

• Experience with molten salt or other high-temperature-fluid heat transport systems.
• Experience with nuclear-specific or concentrating solar power applications.

Culture & Benefits

• Collaborative environment with a strong nuclear safety culture.
• Opportunity to build and mentor a small engineering team.
• Medical, dental, and vision benefits for employees and dependents.
• Paid vacation, 401(k), and pre-tax health insurance, dependent care, and commuter benefits through FSA.
• Office, hybrid, remote, and onsite work arrangements are indicated in the posting.