Supplier Engineer – Welding (UHP Gas Systems)

About the role

We are looking for an experienced Quality Welding Engineer to lead the fabrication of ultra‑high‑purity (UHP) gas delivery systems for semiconductor equipment. The role owns weld quality throughout the fabrication lifecycle, from procedure qualification to in‑process inspection, within a controlled clean‑room environment.

Key responsibilities

• Develop, qualify and maintain welding procedure specifications (WPS) and procedure qualification records (PQR) for orbital GTAW of UHP gas lines, panels and chamber weldments.
• Establish and audit welder/operator qualification programs for both orbital and manual welding personnel.
• Serve as the site subject‑matter expert on SEMI standards such as F78, F81, E49.8 and F70.
• Perform visual, boroscopic and dimensional weld inspections, drive root‑cause analysis and corrective actions for non‑conformances.
• Specify, evaluate and maintain orbital welding equipment, including preventive maintenance and end‑of‑life qualification.

Required profile

• Bachelor’s degree in Welding, Materials/Metallurgical or Mechanical Engineering, or equivalent hands‑on experience.
• 5+ years of welding engineering or weld‑quality experience in semiconductor capital equipment or comparable high‑purity environments.
• Demonstrated knowledge of SEMI standards F78, F81, E49.8 and F70.
• Hands‑on experience with orbital GTAW systems from manufacturers such as Arc Machines, Polysoude or Orbitalum.
• Experience working in a certified clean‑room (Class 100/ISO 5) with strict contamination‑control protocols.

Required skills

• Orbital GTAW welding and equipment qualification.
• Development of WPS/PQR and welder qualification under AWS D1.2 / ASME Section IX.
• 316L stainless‑steel metallurgy, including heat‑affected‑zone control and passivation.
• Application of SEMI standards for UHP gas delivery systems.
• Clean‑room contamination control and purge‑gas management.
• Root‑cause analysis and 8D/CAPA problem‑solving.