Quality Engineer (Welding)

Applied Materials South East Asia Pte Ltd; Penang; On-site; MYR 120,000 - 180,000; Full time

Job summary

Applied Materials South East Asia Pte Ltd is seeking an experienced Quality Welding Engineer to support fabrication of UHP gas delivery systems for semiconductor process equipment. The role oversees weld quality across the fabrication lifecycle in a cleanroom environment, with emphasis on orbital GTAW and 316L stainless steel metallurgy.

The successful candidate will manage WPS/PQR development, welder qualification programs, SEMI standard compliance, and root-cause resolution for weld

Qualifications

• Bachelor's degree in Welding Engineering, Materials/Metallurgical Engineering, Mechanical Engineering.

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, F81, E49.8, F70.
• Own weld quality within cleanroom fabrication cells: gowning discipline, purge gas control, ID/OD surface finish verification, and contamination prevention.
• 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 requirements.
• Specify, evaluate, and maintain orbital welding equipment — power supplies, weld heads, and tube-prep tooling — from 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 traceability documentation to support customer and internal quality audits.

Skills

Orbital GTAW welding

SEMI standards knowledge

Weld quality management

Root-cause analysis (8D)

Cleanroom manufacturing

Education

Bachelor's degree in Welding Eng./Metallurgical Eng./Mechanical Eng.

Tools

AMI Arc Machines

Polysoude

Orbitalum

Job description

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, ID/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 traceability documentation to support customer and internal quality audits.

About you

Bachelor's degree in Welding Engineering, Materials/Metallurgical Engineering, Mechanical Engineering, or equivalent hands-on experience in lieu of degree.

5+ years of welding engineering or weld quality experience in semiconductor capital equipment, UHP gas systems, or a comparably regulated high-purity fabrication environment.

Demonstrated working knowledge of SEMI F78, F81, E49.8, and F70.

Direct hands-on or oversight experience with orbital GTAW welding equipment from Arc Machines Inc. (AMI), Polysoude, Orbitalum, or comparable OEMs, including weld schedule development and machine qualification.

Strong understanding of 316L stainless steel metallurgy — including electropolishing, sulfur content effects on weld penetration, ID surface finish, and passivation — as applied to UHP gas line and chamber weldment fabrication.

Experience working within a certified cleanroom manufacturing environment (Class 100/ISO 5 or better), including contamination control protocols specific to gas panel and gas box assembly.

Familiarity with WPS/PQR development and welder performance qualification under AWS D1.2, ASME Section IX, or equivalent codes, adapted for orbital tube welding.

Working knowledge of VCR/VCO/face-seal fitting cleanliness requirements and UHP component handling practices.

Strong root-cause and corrective-action (8D, fishbone, 5-Why) problem-solving skills applied to weld defects and process escapes.

Preferred: AWS Certified Welding Inspector (CWI) or equivalent certification.

A Global Leader In Nanomanaufacturing A Career with Applied Materials

For over 40 years, we have been enabling the ultra-small transistors-that have changed the world. Today, our nanomanufacturing technology™ is leading the revolution that is helping to make the world a cleaner, brighter place to live.

Applied Materials is the global leader in nanomanufacturing technology solutions with a broad portfolio of innovative equipment, service and software products for the fabrication of semiconductor chips, flat panels, solar photovoltaic cells, flexible electronics and energy efficient glass. At Applied Materials, we apply nanomanufacturing technology to improve the way people live.

Founded in 1967, Applied Materials creates and commercializes the nanomanufacturing technology that helps produce virtually every semiconductor chip and flat panel displays in the world. In 2006, we announced our entry into the market for equipment to produce solar arrays and energy efficient glass.

To support our customers, Applied Materials employs approximately 14,500 people throughout the world.

A Global Leader In Nanomanaufacturing A Career with Applied Materials

For over 40 years, we have been enabling the ultra-small transistors-that have changed the world. Today, our nanomanufacturing technology™ is leading the revolution that is helping to make the world a cleaner, brighter place to live.

Applied Materials is the global leader in nanomanufacturing technology solutions with a broad portfolio of innovative equipment, service and software products for the fabrication of semiconductor chips, flat panels, solar photovoltaic cells, flexible electronics and energy efficient glass. At Applied Materials, we apply nanomanufacturing technology to improve the way people live.

Founded in 1967, Applied Materials creates and commercializes the nanomanufacturing technology that helps produce virtually every semiconductor chip and flat panel displays in the world. In 2006, we announced our entry into the market for equipment to produce solar arrays and energy efficient glass.

To support our customers, Applied Materials employs approximately 14,500 people throughout the world.

To help fast track investigation, please include here any other relevant details that prompted you to report this job ad as fraudulent / misleading / discriminatory / salary below minimum wage.