Senior Welder — Nuclear-Grade Fabrication & Equity

Valar Atomics; Los Angeles (CA); On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Equity ownership

Unlimited PTO

Free daily lunch and dinner onsite

PPE stipend

Career growth opportunities

Job summary

Valar Atomics is seeking a Senior Welder to fabricate precision components for modular nuclear reactor systems. You will perform high-integrity welds on pressure vessels, piping, and structural assemblies, collaborating with engineering and quality teams to meet nuclear-grade specifications.

This hands-on role is critical to building first-of-a-kind hardware. You will read complex drawings, follow WPS directives, and mentor junior welders in a fast-paced startup environment offering equity,

Qualifications

• 5+ years of professional welding experience in manufacturing, aerospace, shipbuilding, or heavy industrial environments.
• AWS Certified Welder with GTAW (TIG) proficiency on stainless steel and exotic alloys.
• Ability to read and work from complex engineering drawings, weld symbols, and WPS documentation.
• Experience with pressure vessel or code welding (ASME Section IX, B31.3, or similar) strongly preferred.
• Comfortable working in a fast-paced startup manufacturing environment with evolving processes.
• Ability to lift up to 50 lbs, stand for extended periods, and work in a shop-floor setting with PPE.

Responsibilities

• Perform GTAW/TIG, GMAW, and SMAW welds on carbon steel, stainless steel, and nickel alloys to nuclear-grade specifications.
• Read and interpret blueprints, weld symbols, and engineering drawings for pressure vessels and structural assemblies.
• Perform in-process and final visual inspection of welds; coordinate with QC for NDE (dye penetrant, radiographic, ultrasonic) testing.
• Maintain and calibrate welding equipment; select correct filler metals, shielding gases, and parameters per WPS.
• Mentor junior welders and enforce shop safety, quality, and 5S standards on the floor.
• Document weld travelers, certifications, and non-conformances in accordance with quality management procedures.

Skills

Welding

GTAW/TIG

GMAW

SMAW

Blueprint reading

ASME weld codes

Safety & 5S

Tools

Welding equipment

WPS documentation

Job description

Valar Atomics is seeking a Senior Welder to fabricate precision components for modular nuclear reactor systems. You will perform high-integrity welds on pressure vessels, piping, and structural assemblies, collaborating with engineering and quality teams to meet nuclear-grade specifications.

This hands-on role is critical to building first-of-a-kind hardware. You will read complex drawings, follow WPS directives, and mentor junior welders in a fast-paced startup environment offering equity,