Job Summary

Kairos Power is seeking a highly skilled and motivated Machinist with experience setting up, programming, and operating a variety of multi-axis machine tools including lathes, milling machines, boring machines, and grinders to produce precision parts and components from both metallic and nonmetallic materials. Responsibilities include interpreting blueprints and technical drawings, selecting appropriate tooling and materials, and ensuring all work meets tight tolerances and quality standards. The Machinist creates and edits NC programs for CNC machines, performs in-process inspections, and adjusts setups as needed to maintain accuracy and efficiency. 

Responsibilities

Job Planning

• Reads blueprint or job order for product specifications such as dimensions and tolerances, and tooling instructions such as fixtures, feed rates, cutting speeds, depth of cut, and determines sequence of operations.
• Establishes work coordinate systems and tooling offsets.
• Creates work holding methods and plans for all machine operations.

Machine Setup and Operation

• Positions and secures workpiece in holding device, machine table, chuck, centers, or fixtures.
• Sets up and operates machines and equipment other than machine tools.
• Observes operation of machine and verifies conformance of machined workpiece to specifications.

Programming

• Creates and edits NC programs using industry software such as MasterCam.

Production Control

• Maintains compliance with internal quality standards and proficiently utilizes job scheduling software to track production and shop floor operations.

Documentation

• Completes and maintains accurate job travelers and first article inspection reports to ensure documentation compliance and traceability throughout the manufacturing process.

Other duties as assigned

Qualifications

• High school diploma or GED required, along with 5+ years of relevant machining experience (including mill, lathe, 3-axis, 5-axis, and live-tooling); or an equivalent combination of education, training, and hands-on experience

Knowledge, Skills & Abilities

• Knowledge of CAM-CAD software and G-Code; Experience in Solidworks is a plus
• Ability to create and edit machining programs CAM software (Mastercam preferred)
• Understanding of basic and advanced GD&T such as: tolerancing, flatness, parallelism, thread tolerances, profile tolerances, perpendicularity
• Ability to work with shop mathematical concepts to practical situations
• Ability to maintain and use precision measuring tools such as: Vernier Calipers, Micrometers, Height gages, Gauge Pins, Gauge Blocks, Thread Gauges, etc.
• Knowledge and understanding of CNC cutting tool selections. cutting tool surface footage, and chip load feed rates
• Ability to read and interpret documents such as safety rules, operating and maintenance instructions, and procedure manuals
• Ability to utilize computers and company-specific software, including timekeeping tools, training platforms, and work order systems to perform daily responsibilities effectively
• Ability to work with highly collaborative team
• 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

Physical Demands

• 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 25 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

• Noisy environments
• Odors or fumes from chemicals or chemical reactions
• Accessing the accuracy, neatness and thoroughness of the work assigned
• High-concentration, demanding and fast-paced

Safety and PPE

• Reading and interpreting hazardous warning signs
• Manipulating, cleaning and disposal of hazardous materials
• Reporting issues with equipment or unsafe conditions
• Color identification: detecting, distinguishing, recognizing and identifying colors
• Wearing proper PPE, to include face mask, face shields, gloves, safety shoes

Travel

Certification

• Capable of obtaining forklift and boom lift certification

Additional Requirements

• Occasionally requires overtime
• Occasionally requires working weekends
• Occasionally requires schedule flexibility
• Occasionally requires non-standard work-week hours
• Occasionally requires working 2nd shift, beginning at 4:30pm local time
• Occasionally requires extended hours to support launch and critical project timelines

The hourly range for this position is $46 to $52 for employees working onsite at our locations in Richmond, CA and Alameda, CA (headquarters). 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, abilities, the market data for your work location, and a comparison to other employees already in the role. 

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Job Summary 

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

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Job Summary 

Kairos Power is seeking a highly motivated fabricator with expertise relevant to fabrication of piping systems. In this role you will contribute to successful completion of piping systems for the various systems of our reactors. This role requires in position and out of position welding. You will be responsible for meeting timelines and increased improvement of the pipe welding capabilities. This includes manual tig welding as well as orbital welding. The candidate must have knowledge of infrastructure, setup, operation, and maintenance requirement for advanced shop equipment. Candidate shall have knowledge of modern fabrication techniques, and proven record of successful cross-functional collaboration. Candidate ideally takes pride in their craftsmanship, organization, and attention to detail. We offer a fast moving and exciting environment.

Responsibilities 

• Fabricate and assemble piping systems to meet engineering and print specifications.
• Perform high-quality TIG and orbital welding on a variety of materials and pipe schedules.
• Interpret and work from isometric drawings, blueprints, and technical specifications.
• Provide fast turn-around prototypes for engineering development and testing.
• Collaborate closely with Engineering teams to problem solve fabrication issues and execute work request.
• Propose optimal/innovative fabrication techniques for given jobs.
• Participate as a team member on large-scale fabrication projects, ensuring timelines and quality standards are met.
• Fabricate piping systems to meet print requirements.
• Conduct training occasionally on machine capability and best practices to enhance fabrication of piping systems.
• Maintain current welding certifications and documentation in accordance to company and ASME standards.
• Ensure all work complies with applicable safety standards, procedures, and codes.
• Maintain equipment, tools, and the fabrication workspace in safe and reliable condition.
• Other duties as assigned

Qualifications

• High School Diploma or GED and 3+ years related experience and/or training
• 1-3 years working in a fabrication/welding shop desired
• GTAW experience involving variety of materials including tubing to schedule 160 pipe
• Ability to pass 6G super coupon weld certification
• Experience with manual tools required
• Experience with Manual machining (Lathe and Mill) desired
• Experience with 3D CAD software desired
• Experience working with Stainless material and vessel fabrication desired

Knowledge, Skills & Abilities 

• Knowledge of ASME Boiler and Pressure Vessel Code
• Ability to read and understand isometric drawings for piping
• Ability to work with highly collaborative team
• 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

Physical Demands

• Ascending or descending ladders, stairs, scaffolding, ramps, scissor lifts, articulated boom lifts and the like
• 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
• Assessing the accuracy, neatness and thoroughness of the work assigned
• High-concentration, demanding and fast-paced
• Manufacturing/Industrial Environments

Safety and PPE 

• Reading and interpreting hazardous warning signs
• Manipulating, cleaning and disposal of hazardous materials
• Reporting issues with equipment or unsafe conditions
• Wearing proper PPE, to include face mask, face shields, gloves, safety shoes, etc.

Certification

• Capable of obtaining forklift and boom lift certification 

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 

#LI-Onsite

Job Summary

Kairos Power is seeking a highly skilled and motivated Senior Mill-Turn Machinist experienced with multitask machining operations, including dual spindle lathes or mill-turn machines. In this role, you will support precision machining operations of a wide range of component sizes requiring tight tolerances and complex geometry.  The Senior Machinist will contribute to Kairos Power’s machining capabilities by operating a variety of multi-axis machines to create quality parts that meet all engineering specifications with exceptional craftsmanship.  This position supports the execution of manufacturing processes that support the company’s Fluoride Salt-Cooled High-Temperature Reactor (FHR) program and broader technology initiatives.

Responsibilities

• Interprets blueprints along with 3D models to develop NC programs, design fixturing, plan machining sequences, and operate CNC machines to produce precision components.
• MultiAxis programming with industry Software for CAD/CAM such as MasterCam.
• Creates safe workholding methods and plans for work coordinates or tooling before any machine operations.
• Set up, operation and programing of a wide range of component sizes to deliver parts to meet internal deadlines or quality requirements.
• Operate shop-related machines and equipment such as band saws, hand tools, and measuring equipment when preparing material.
• Selects appropriate jaws or creates custom workholding while utilizing primarily hydraulic chucks on main and sub spindles in mill-turn machines.
• Monitor machine operations and interpret G and M codes to verify accuracy of machined workpiece to specifications; make adjustments as needed anywhere that can be improved.
• Maintain a clean and organized work environment to keep associated paperwork organized and prevent loss of stock or tooling.
• Identify and resolve machining challenges independently and assist others as needed.
• Executes rigging, material movement and setup of large (>1,000 lb) machined parts following established safety protocols.
• Performs precision machining operations on parts and components within multi-process assemblies, including components that have undergone prior processes such as welding, rolling, and forming, contributing to a continuous and complex manufacturing workflow.
• Maintains compliance with internal quality standards and proficiently utilizes job scheduling software to track production and shop floor operations.
• Completes and maintains accurate job travelers and first article inspection reports to ensure documentation compliance and traceability throughout the manufacturing process.
• Other duties as assigned

Qualifications

• High school diploma or GED required, along with a 5+ years of relevant machining experience (including mill, lathe, 3-axis, 5-axis, and live-tooling); or an equivalent combination of education, training, and hands-on experience.
• Experience in rigging, material movement and setup of large machined parts and supporting lift plans for movement of large material and parts.
• Experience in reading and interpreting engineering and assembly drawings.
• Experience with mill-turn environment in MasterCam a plus.
• Experience with live centers or steady rests on long parts a plus.
• Experience with Okuma Multus, DMG Mori NTX or Mazak Integrex
• Familiarity with SolidWorks or similar CAD platforms to assist with understanding part geometry and communicating with engineering teams is a plus.
• Proficient programming with CAM software (Mastercam preferred).

Knowledge, Skills & Abilities

• Knowledge of CAM-CAD software and G-Code.
• Ability to adapt machining processes and operation between different jobs and complexities of parts, including ability to switch from small scale to large scale machinery.
• Proficient programming with CAM software.
• Understanding of basic and advanced GD&T such as: tolerancing, flatness, parallelism, thread tolerances, profile tolerances, perpendicularity.
• Knowledge and understanding of CNC cutting tool selections cutting tool surface footage, and chip load feed rates.
• Ability to work with shop mathematical concepts to practical situations.
• Ability to maintain and use precision measuring tools such as: Vernier Calipers, Micrometers, Height gages, Gauge Pins, Gauge Blocks, Thread Gauges, etc.
• Willingness to provide mentorship and technical guidance to machinists, fostering skill development, continuous improvement, and adherence to best practices in machining operations preferred, but not required.
• Ability to read and interpret documents such as safety rules, operating and maintenance instructions, and procedure manuals.
• Ability to utilize computers and company-specific software, including timekeeping tools, training platforms, and work order systems to perform daily responsibilities effectively.
• Ability to work with highly collaborative team.
• Ability to speak effectively before groups of employees of organization.
• Ability to solve problems quickly and efficiently.
• Prioritizes and ensures safety of one self 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.

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

• General office environment
• 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

Safety and PPE

• Reading and interpreting hazardous warning signs
• Manipulating, cleaning and disposal of hazardous materials
• Reporting issues with equipment or unsafe conditions
• Wearing proper PPE, to include face mask, face shields, gloves, safety shoes, etc.

Certification

• Capable of obtaining forklift and boom lift certification
• Capable of obtaining crane and rigging certification

Additional Requirements

• Sometimes requires working weekends
• Often requires schedule flexibility
• Often requires non-standard work-week hours
• Often requires extended hours to support launch and critical project timelines

The hourly range for this position is $49 to $58 for employees working onsite at our locations in Richmond, CA and Alameda, CA (headquarters). 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, abilities, the market data for your work location, and a comparison to other employees already in the role. 

#LI-Onsite