Mechanical Technician, Process Gas Systems

At Valar Atomics, we're redefining what's possible in energy. Our mission is to make clean, high-temperature nuclear power scalable—unlocking abundant energy for industry, hydrogen, and next-generation manufacturing. We are a team of builders, engineers, and operators who believe nuclear energy should be fast to deploy, factory-made, and built for the real world. Our first pilot plant in Orangeville, Utah will demonstrate how advanced nuclear systems and fuel fabrication can power the future. Joining Valar Atomics means becoming part of a company where autonomy, ownership, and impact exist at every level.

As part of the Engineering organization, Mechanical Engineering designs and develops the mechanicalsystems, components, and equipment that power Valar's advanced nuclear technologies. The teamensures designs are robust, manufacturable, and optimized for long-term performance.

The Mechanical Technician builds, tests, and commissions pressurized process gas skids for our advanced nuclear reactor. The work spans tube bending, piping, compressors, chillers, heat exchangers, and pressure vessels, from first fit-up through leak testing, pressure testing, and startup. You will maintain high standards for quality, safety, and workmanship and partner closely with engineering to turn designs into reliable, buildable hardware. 

• →Build and test process system skids in accordance with approved drawings, specifications, procedures, and work instructions; work independently and coordinate with other technicians to support the build schedule. 
• →Maintain high standards for safety, workmanship, cleanliness, and procedure adherence throughout tube bending, fitting makeup, bolted joint assembly, testing, and commissioning activities. 
• →Work closely with engineering, quality, and operations; review drawings and procedures for buildability and raise drawing discrepancies, design conflicts, or unsafe conditions early. 
• →Build process system skids to P&IDs, isometric and general arrangement drawings, specifications, and work instructions.
• →Measure, bend, cut, debur, and install stainless steel and alloy tubing; make up and inspect compression fittings with gap gauges per the manufacturer's 
• →instructions. 
• →Install and fit up piping, flanges, valves, regulators, relief devices, filters, and pressure vessels; assemble flanged joints with correct gaskets and controlled torque sequences (ASME PCC-1). 
• →Install, align, and connect compressors, pumps, chillers, coolers, and heat exchangers, and coordinate instrumentation installation with electrical and I&C technicians. 
• →Maintain cleanliness and foreign material exclusion (FME) controls for high-purity gas service, and rig and move skids and equipment safely using cranes, hoists, and forklifts. 
• →Perform hydrostatic and pneumatic pressure tests per ASME B31.3, BPVC Section VIII, and approved test procedures. 
• →Participate in mechanical completion walkdowns, punch lists, and system turnover, and support commissioning and startup of compressors, chillers, heat exchangers, and control and relief valves. 
• →Diagnose mechanical problems such as leaks, vibration, and overheating, and perform preventive and corrective maintenance to minimize downtime. 
• →Maintain tools, calibrated test equipment, and parts inventory, and participate in incident investigations and continuous improvement of build and test processes.

• Competitive base salary 
• Equity ownership in a rapidly growing advanced energy company 
• Comprehensive medical benefits 
• Free daily lunch and dinner provided onsite 
• Generous PPE stipend
• High-impact startup environment with significant ownership and autonomy 
• Opportunities for rapid career growth and internal advancement 
• Direct collaboration with experienced operators, engineers, and industry leaders 
• The opportunity to help build and scale transformative energy technology from the ground up

Valar Atomics is an equal opportunity employer. We consider all qualified applicants without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, age, disability, veteran status, or any other protected status under applicable law.

We are committed to providing a workplace free of discrimination and harassment and will provide reasonable accommodation as required by law.

Applicants must be legally authorized to work in the United States as a U.S. citizen or lawful permanent resident (green card holder).