Welding Engineer

The role

You will support the development, qualification, and production of welded hardware for reactor systems. You will own welding processes from design and material selection through manufacturing and inspection.

What you will do

• Develop, qualify, and maintain welding procedures including WPS and PQR
• Select welding processes, filler metals, joint designs, and process parameters
• Provide design-for-welding guidance regarding joint accessibility and manufacturability
• Support welded hardware from prototype development through production and final acceptance
• Work with welders, technicians, and suppliers to establish fabrication processes
• Create manufacturing work instructions, process controls, and technical specifications
• Develop and execute weld qualification plans using destructive and nondestructive testing
• Review weld documentation, inspection results, and material certifications
• Lead root-cause investigations for weld defects and nonconformances
• Develop repair and rework procedures and provide technical disposition

Required qualifications

• Bachelor’s degree in Welding Engineering, Materials Science and Engineering, Mechanical Engineering, or a related technical field
• 2+ years of professional experience in welding engineering, joining processes, or welded hardware manufacturing
• Working knowledge of common fusion welding processes such as GTAW, GMAW, PAW, laser welding, or electron beam welding
• Experience developing or supporting welding procedures and welder qualifications
• Understanding of welding metallurgy, heat-affected zones, solidification, distortion, residual stress, and common weld defects
• Experience interpreting engineering drawings, weld symbols, material specifications, and inspection requirements
• Familiarity with destructive testing and nondestructive examination methods
• Ability to work hands-on with production personnel and independently resolve manufacturing challenges

Nice to have

• 3+ years of welding engineering experience in aerospace, nuclear, pressure vessel, power generation, defense, or another highly regulated industry
• Experience welding stainless steels, nickel-based superalloys, refractory metals, or dissimilar-metal combinations
• Knowledge of applicable welding and fabrication codes, including ASME Section IX, ASME Boiler and Pressure Vessel Code, AWS D17.1, AWS D1.1, or equivalent standards
• Experience with pressure-boundary, high-temperature, vacuum, or leak-tight welded assemblies
• Familiarity with advanced welding processes, including automated orbital GTAW, laser beam welding, electron beam welding, resistance welding, or additive repair
• Experience developing weld fixtures, tooling, purge systems, and methods for controlling distortion and heat input
• Experience with weld inspection methods such as visual, dye penetrant, radiographic, ultrasonic, leak, or metallographic examination
• Familiarity with post-weld heat treatment, stress relief, cleaning, passivation, and contamination control
• Experience conducting weld failure investigations using metallography, microscopy, hardness testing, or mechanical testing
• Certified Welding Inspector (CWI), International Welding Engineer (IWE), or similar professional qualification

About the company

Antares is building mass-producible, inherently safe, deployable microreactors to make clean energy abundant. The team hails from organizations including SpaceX, the White House, the Pentagon, and various National Laboratories.