Sr. Process Design Engineer - Inert Gas System
Kairos Power
Company Overview
Kairos Power, LLC
Alameda, California, United States
2016
Approximately 300 employees (source: climatebase.org).
What They Do
Kairos Power is a pioneering American nuclear energy company that specializes in developing advanced nuclear reactor technology, specifically the fluoride salt-cooled high-temperature reactor (KP-FHR). This innovative reactor design utilizes TRISO (tri-structural isotropic) coated particle fuel in a buoyant annular graphite pebble form, combined with low-pressure Flibe (Li2BeF4 lithium-beryllium-fluoride salt) coolant. This technology allows for online refueling without the need for reactor shutdowns, high-temperature operations that exceed conventional fuel capabilities, and a secondary solar salt loop for steam generation, making it compatible with modern commercial power plants (source: kairospower.com). The company aims to provide cost-competitive energy solutions that feature high availability, low maintenance, and near-zero carbon emissions, positioning its reactors as a complementary energy source alongside variable renewables for enhanced grid resiliency (source: wikipedia.org). Target markets include U.S. electricity generation and process heat applications, particularly for data centers powering artificial intelligence, with plans for initial commercial offerings following successful demonstrations in the early 2030s (source: kairospower.com).
Projects & Track Record
While Kairos Power has not yet completed any full-scale commercial projects, it has made significant strides in testing and demonstration initiatives. The company has operated the RAPID Lab (R-Lab) in Alameda since September 2018, focusing on surrogate fluid and high-temperature materials testing. Additionally, the commissioning of the Salt Lab (S-Lab) in July 2020 has facilitated evaluations of Flibe coolant, while the Pebble Development Lab at KP Southwest was completed in May 2021. The Engineering Test Unit (ETU) has also made progress with hot commissioning starting in August 2022 (source: kairospower.consultation.ai). The flagship project currently underway is the Hermes low-power demonstration FHR reactor, which has a thermal capacity of 35 MW and is being developed in partnership with the Tennessee Valley Authority (TVA). Initial geotechnical work at the Oak Ridge, Tennessee site commenced in August 2021, and the NRC construction permit application was accepted for review in November 2021, with full construction permit approval achieved in December 2023 (source: wikipedia.org).
Recent Developments
In the past two years, Kairos Power has secured significant regulatory approvals, including the NRC site construction approval for the Hermes reactor in Tennessee in 2023, marking a historic milestone as the first such permit granted in 50 years for a non-water-cooled reactor. The full construction permit was also approved in December 2023, following extensive pre-application engagement that began in October 2018 (source: wikipedia.org). A major highlight for 2024 is the agreement with Google to deploy six to seven small nuclear reactors to power AI data centers, with the first unit expected to be operational by 2030 (source: wikipedia.org). Additionally, the ongoing partnership with the Department of Energy, which includes a $629 million cost-sharing award for the Hermes project, continues to support the company's development and licensing efforts (source: kairospower.consultation.ai).
Working There
Kairos Power actively hires across various engineering disciplines, including reactor and salt system design, analysis, testing, licensing, and manufacturing roles such as machining, welding, and fabrication. The company fosters a collaborative and hands-on work environment that emphasizes innovation and mission-driven objectives, with a culture that values diversity and inclusivity (source: kairospower.com). Active recruitment is ongoing at their headquarters in Alameda, California, as well as at their facilities in Albuquerque, New Mexico, which include manufacturing and testing labs (source: kairospower.consultation.ai). The company places a strong emphasis on mission statement reviews at the start of meetings to ensure alignment with their goal of facilitating the clean energy transition, and they attract talent passionate about making a significant impact in the world (source: kairospower.com). Specific employee benefits are not extensively detailed in public sources, but the company promotes a high-performance work environment that supports innovation (source: kairospower.com).
Contact
Last updated on 2025-12-26 | Report an issue
Kairos Power is a new nuclear energy technology and engineering company whose mission is to enable the world's transition to clean energy, with the ultimate goal to dramatically improve people's quality of life while protecting the environment. This goal will be accomplished through the commercialization of the fluoride-salt-cooled, high-temperature reactor (FHR) that can be deployed with robust safety, affordable costs, and flexible operation to accommodate the expansion of variable renewables.
Kairos Power is seeking a Senior Process Design Engineer to support the Cover Gas and Tritium Management Systems for our first low-power demonstration nuclear reactor and future commercial reactor units. In this role, you will help define and deliver high-purity cover gas processes that ensure safe, reliable, and clean operation of the reactor. This position offers the opportunity to shape core nuclear systems, from design through commissioning, in a collaborative and fast-paced engineering environment.
Responsibilities
- Lead design and integration of Inert Gas System (IGS) processes and components for an advanced reactor, ensuring safety, performance, and regulatory alignment.
- Define technical basis for IGS designs that enable high-purity gas operations and effective removal of chemical and radioactive impurities, encompassing process architecture, component selection, and operating strategies.
- Develop and maintain key system documentation such as P&IDs, process control narratives, and design specifications.
- Define and execute testing commissioning and acceptance plans to verify performance, reliability, and maintainability of critical hardware.
- Collaborate across disciplines-Plant Design, Process Design, I&C, Operations, and Safety-to ensure seamless integration of IGS with interfacing systems.
- Select and qualify materials, instrumentation, and components for use in radioactive gas and high-temperature environments.
- Support hazard analyses, FMEA, and licensing efforts to ensure robust safety and regulatory compliance.
- Work with vendors and suppliers to specify and evaluate nuclear-grade gas handling and tritium management equipment.
- Provide technical mentorship and leadership to engineers developing next-generation gas and process systems.
Qualifications
- B.S. (or higher) in Nuclear, Chemical, or Mechanical Engineering.
- 7+ years of relevant industry experience in nuclear, molten salt, refining, chemical, power generation process design engineering or similar applicable industry.
- Demonstrated experience designing, delivering, and commissioning high-purity gas systems skids or other containment-critical chemical processes.
- Proficient in interpreting Process Flow Diagrams (PFDs), Piping and Instrumentation Diagrams (P&IDs), and process equipment datasheets.
- Experience with HazOp, FMEA, and safety-by-design principles for nuclear or high-risk systems.
- Familiarity with codes and standards applicable to nuclear systems (ASME, API, NRC, IAEA).
- Experience using process modeling tools (Aspen Plus, AFT Fathom/Arrow, etc.).
Knowledge, Skills & Abilities
- Ability to work with highly collaborative team with excellent verbal and written communication, presentation, and interpersonal skills.
- Demonstrated capacity for autonomous problem-solving.
- Ability to solve problems quickly and efficiently.
- Prioritizes and ensures safety of oneself and others.
- Ability to proactively collect, manage and transfer knowledge.
- Ability to seek different and novel ways to create efficiencies when working on problems, challenges and issues.
- Experience in a nuclear material, radiological processing, of radioactive gas handling systems facility is preferred but not required.
- Prior experience in nuclear or high-temperature chemical systems preferred.
- Proven ability to work in a fast-paced, cross-disciplinary engineering environment and drive design to completion.
Physical Demands
- Remaining in a stationary position, often standing or sitting for prolonged periods.
- Communicating with others to exchange information.
Environmental Conditions
- General office environment.
- Accessing the accuracy, neatness and thoroughness of the work assigned.
- High-concentration, demanding and fast-paced.
Travel
- Travel (up to 20%) to other Kairos Power offices and vendor locations.
The salary range for this position is $118,100 to $139,000 for employees working onsite at our Albuquerque, NM location. The range provided in this job posting represents the typical range or starting rate of candidates hired in California. Factors that may be used to determine your actual salary may include your education, experience, knowledge, skills, ability and the market data for your work location, and a comparison to other employees already in the role.
About our Benefits
We know that we have some of the most talented and dedicated employees, and we believe in rewarding them accordingly. If you work here, full-time employees (excludes interns) expect to have access to the benefits below:
- Competitive compensation packages.
- Medical, dental and vision benefits for employees and their dependents.
- Paid Vacation.
- 401(k) and pre-tax health insurance, dependent care, and commuter benefits (FSA).
Kairos Power is committed to building a diverse workforce that reflects the communities where we do business. Kairos Power is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We actively welcome people of different experiences, abilities, and perspectives.
Kairos Power participates in E-Verify.
Candidates only, no recruiters or agencies please.
Note: You are applying for a position that is located in a facility that handles information that is subject to export control restrictions by the Department of Energy under 10 CFR Part 810. To work in this facility, you need to be authorized by the Department of Energy to access Part 810-controlled information. Foreign nationals who are citizens of countries that are not on the Department of Energy's general authorization list are not permitted to work in our facility unless the Department of Energy issues an export control license to the company to permit that individual to have access to Part 810-controlled information.
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About the role
December 1, 2025
Full Time
Company
January 9, 2026
On-site
USD 118k–139k yearly
- Albuquerque, New Mexico, United States
- Oak Ridge, Tennessee, United States
7+ years
UTC-07:00 — UTC-06:00
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