Quality Welding Engineer (E5) - Austin, TX, United States
Originally posted 28 July 2026 by the employer. Relisted by the employer on 9 September 2026.
Support fabrication of ultra-high-purity (UHP) gas delivery systems for semiconductor process equipment.
About the role
This role supports 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 within a controlled cleanroom manufacturing environment.
What you'll do
- 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, and 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; 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.
What you'll need
- Bachelor's degree in Welding Engineering, Materials/Metallurgical Engineering, Mechanical Engineering, or equivalent hands-on experience.
- 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.
- Strong understanding of 316L stainless steel metallurgy 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.
- 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 problem-solving skills applied to weld defects and process escapes.
Nice to have
- AWS Certified Welding Inspector (CWI) or equivalent certification.
- Prior experience supporting supplier qualification or supplier weld audits for semiconductor equipment OEMs or their supply base.
- Experience with gas panel engineering documentation, MFC/component-level FMEA, or ANSI/ASQ Z1.4 sampling plans in a quality context.
- Familiarity with additional SEMI standards relevant to UHP gas delivery (e.g., F19, F57) and general semiconductor equipment quality systems.
Skills: orbital GTAW, UHP gas lines, SEMI, welding procedure specifications, 316L stainless steel
This role has been open 82 days — well above the 54-day median for Semiconductor Equipment Engineering roles.
Semiconductor Equipment Engineering · Manufacturing Equipment
|
Open roles in category
3768
|
Median days open
54 d
|
Median salary
$126k
|
See the full market breakdown ▾Category comparison, skills in demand, and who else is hiring
| Metric | Applied Materials | All employers we track in this specialty (3768 roles · 81 employers) |
|---|---|---|
| Open roles in this specialty | 621 | 3768 |
| Open roles in the wider Process, Fab & Equipment family | 1115 | 9897 · 109 employers |
| Median days open | 54 d | 54 d (same as this employer) |
| Median salary (USD postings) | — | $126k |
Skills observed across this category: orbital GTAW, UHP gas lines, SEMI, welding procedure specifications, 316L stainless steel
Who's hiring in this category
- Applied Materials (this employer) · 611 open roles · median 54 d
- Lam Research · 559 open roles · median 44 d
- Micron Technology · 282 open roles · median 45 d
- KLA Corporation · 251 open roles · median 68 d
- ASML · 190 open roles · median 72 d
- ASM International · 161 open roles · median 86 d
How we counted: 3768 open Semiconductor Equipment Engineering (Manufacturing Equipment) roles from 81 employers tracked in the SemiconductorJobs index, counted 18 Oct 2026. Specialty figures count only roles carrying this exact specialty label, so an employer's related work in neighbouring specialties is not included there — it is counted in the wider Process, Fab & Equipment family row. Figures refresh nightly.