Quality Welding Engineer; E5

Position: Quality Welding Engineer (E5)
Who We Are Applied Materials is the global leader in materials science and engineering solutions that are at the foundation of virtually every new semiconductor chip and advanced display in the world. The equipment that we create and service is essential to advancing AI and accelerating the commercialization of next-generation semiconductor chips. Join us and push the boundaries of materials science and engineering in a company at the foundation of the electronics industry.

The work we do together advances the world’s technology.

What We Offer Salary:$ - $

Location:

Austin,TXYou’ll benefit from a supportive work culture that encourages you to learn, develop, and grow your career as you take on challenges and drive innovative solutions for our customers. We empower our team to push the boundaries of what is possible—while learning every day in a supportive leading global company. Visit our Careers website to learn more. At Applied Materials, we care about the health and wellbeing of our employees.

We’re committed to providing programs and support that encourage personal and professional growth and care for you at work, at home, or wherever you may go. Learn more about our benefits.

Job Summary We are seeking an experienced Quality Welding Engineer to support fabrication of ultra-high-purity (UHP) gas delivery systems for semiconductor process equipment, including gas panel assemblies and chamber weldments. This role owns weld quality across the fabrication lifecycle — procedure qualification, welder certification, in-process inspection, and nonconformance resolution — within a controlled cleanroom manufacturing environment. The ideal candidate combines deep orbital welding and stainless steel metallurgy expertise with fluency in the SEMI standards that govern UHP gas system integrity.

Key Responsibilities Develop, qualify, and maintain welding procedure specifications (WPS) and procedure qualification records (PQR) for orbital GTAW of UHP gas lines, gas panels, and chamber weldments.

Establish and audit welder/operator qualification programs for orbital and manual welding personnel working on UHP systems.

Serve as the site subject matter expert on applicable SEMI standards, including F78 (particle contamination / cleanroom compatibility), F81 (surface roughness for UHP components), E49.8 (orbital weld documentation and acceptance), F70 (UHP gas distribution system components), and related SEMI specifications governing gas delivery hardware.

Own weld quality within cleanroom fabrication cells: gowning discipline, purge gas control, /OD surface finish verification, and contamination prevention throughout the weld process.

Perform and oversee visual, boroscopic, and dimensional weld inspection against acceptance criteria; drive root-cause analysis and corrective action for weld discrepancies and nonconformances.

Provide metallurgical oversight of 316L stainless steel (and related UHP alloys) including heat-affected-zone control, oxide/heat-tint discoloration limits, interpass temperature, and purge gas (Ar/back-purge) requirements to preserve corrosion resistance and surface passivation.

Specify, evaluate, and maintain orbital welding equipment — power supplies, weld heads, and tube-prep tooling — from manufacturers such as Arc Machines Inc. (AMI), Polysoude, Orbitalum, and equivalent, including PQ/programming, preventive maintenance, and end-of-life qualification.

Partner with manufacturing engineering, quality assurance, and supply chain teams to qualify internal and supplier weld sources against consistent acceptance standards.

Support root-cause investigations and 8D/CAPA activities for weld-related field or customer escrow issues.

Maintain and audit weld travelers, certification records, and…