Senior Electron Beam Welding Engineer
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 highly motivated Senior Electron Beam Welding Engineer that will be responsible for in-house electron beam welding (EBW) capability development and technology maturation. In this role, you will work on the Welding Development team to assist in the advancement and implementation of welding and manufacturing capabilities. The candidate will partner with design, testing, materials, modeling & simulation, and reliability engineers to develop weld joint design, weld techniques, weld specifications, and inspection methods needed for welded KP-FHR and test platform assemblies.
Responsibilities
Procedure Development & Qualification
- Design, develop, and maintain EBW procedures and supporting documentation (WPS/PQR) to meet material, joint, and quality requirements in compliance with applicable codes, standards (e.g., AWS, ASME, API), and regulatory expectations.
- Develop and execute weld qualification plans, including test coupons and validation trials, in coordination with quality and materials teams
- Anticipate future welding needs by aligning EBW procedures and qualification strategies with evolving product designs, manufacturing processes, and regulatory demands.
Quality Assurance & Process Optimization
- Oversee and review EBW inspections to verify compliance with design specifications and applicable quality standards.
- Analyze weld test data to identify trends, determine root causes of defects, and implement corrective actions to enhance welding performance and reliability.
- Lead continuous improvement initiatives to optimize EBW processes, increase efficiency, reduce cost, and maintain high-quality output.
Collaboration & Training
- Partner with design engineers, production teams, and key stakeholders to integrate EBW processes into the manufacturing workflow effectively.
- Provide hands-on training and mentorship to welding technicians and operators on EBW techniques, safety protocols, and industry best practices.
Technical Documentation & Reporting
- Develop and maintain comprehensive technical documentation, including process instructions, work procedures, and detailed reports.
- Ensure accurate recordkeeping of EBW procedures, inspection results, and quality control data to support traceability and continuous improvement.
Equipment Ownership & Maintenance
- Ensure performance, reliability, and availability of EBW systems, including high-vacuum chambers, beam control units, and power supplies.
- Monitor and calibrate critical parameters (e.g., beam alignment, focus, power output, vacuum integrity) to maintain process consistency and compliance with specifications.
- Lead maintenance and upgrade initiatives, including preventive planning, troubleshooting, vendor coordination, and system improvements to enhance automation and long-term equipment reliability.
Other Duties as Assigned
Qualifications
- Bachelor's degree or higher in Welding Engineering, Materials Science, Mechanical Engineering, or a related technical field
- Minimum 5 years of welding engineering experience, with substantial hands-on experience in EBW required
- Experience with weld inspection methods, including both destructive testing and non-destructive examination (NDE) techniques
- Hands-on experience working with austenitic stainless steels, carbon steels, piping systems, and pressure vessels
- Experience leading cross-functional projects or mentoring junior engineers and technicians is preferred.
- Experience with manual and CNC machining operations is preferred
Knowledge, Skills & Abilities
- Strong knowledge of EBW processes, high-vacuum systems, and high-voltage equipment operation
- Proficient in reading and interpreting complex engineering and assembly drawings, including weld symbols and geometric dimensioning & tolerancing (GD&T)
- Familiarity with ASME Boiler and Pressure Vessel Code and AWS structural welding standards
- Skilled in using CAD software such as SolidWorks for part modeling and drawing generation
- Proficient with computers and digital tools used in technical documentation, data analysis, and process development
- Familiarity with the calibration, preventive maintenance, and troubleshooting of EBW systems and associated instrumentation.
- Strong problem-solving skills and ability to drive continuous improvement through data-driven analysis and collaboration
- Proven ability to manage multiple priorities in a fast-paced, agile manufacturing or development environment
- Excellent verbal and written communication skills; able to collaborate effectively across engineering, production, and quality teams
- Ability to collect, manage, and transfer technical knowledge across teams or documentation systems
- Committed to fostering a safe, inclusive, and high-performing workplace
- Ability to work with highly collaborative team.
- Ability to solve problems quickly and efficiently.
- Prioritizes and ensures safety of oneself and others.
- Ability to seek different and novel ways to create efficiencies when working on problems, challenges and issues.
Physical Demands
- Ascending or descending ladders, stairs, scaffolding, ramps, scissor lifts, articulated boom lifts and the like
- Setting up and transferring temporary structures (e.g. scaffolding, ladders)
- Moving self in different positions to accomplish tasks in various environments including tight and confined spaces
- Remaining in a stationary position, often standing, or sitting for prolonged periods
- Moving about to accomplish tasks or moving from one worksite to another
- Adjusting, moving, transporting, installing, positioning, or removing objects up to 50 pounds in all directions
- Communicating with others to exchange information
- Operating motor vehicles, heavy equipment or machinery
- Use hand tools
- Repetitive assembly operations of manufacturing test fixtures and test setups in collaboration with engineering and manufacturing teams
Environmental Conditions
- Low temperatures
- High temperatures
- Outdoor environment or elements such as precipitation and wind
- Noisy environments
- Small and/or enclosed spaces
- Odors or fumes from chemicals or chemical reactions
- Elevated heights
- Accessing the accuracy, neatness and thoroughness of the work assigned
- High-concentration, demanding and fast-paced
- General office environment
- Manufacturing/Industrial Environment
Safety and PPE
- Reading and interpreting hazardous warning signs
- Wearing proper PPE, to include face mask, face shields, gloves, safety shoes, etc.
- Reporting issues with equipment or unsafe conditions
Travel
- Some travel may be required (up to 20%) to other Kairos Power offices or external suppliers
Additional Requirements
- Occasionally requires overtime
- Occasionally requires working weekends
- Occasionally requires schedule flexibility
- Occasionally requires non-standard work-week hours
- Occasionally requires extended hours to support launch and critical project timelines
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 (link below) 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. The following questions are intended to determine the licensing requirements that may apply. https://www.law.cornell.edu/cfr/text/10/appendix-A_to_part_810
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About the role
November 26, 2025
Full Time
Company
January 2, 2026
On-site
- Albuquerque, New Mexico, United States
Minimum 5 years of welding engineering experience
UTC-07:00
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