- Matrix Service (Houston, TX)
- **Description** **Tank and Specialty Vessel Welder .** **Summary:** Responsible for performing welding and grinding functions per job specifications. Selects ... 4G + SMAW E6010 (5P) 3G, Downhill + SMAW E7018 - 2G, 3G, 4G **Specialty Vessel Welders** must be able to pass the following weld tests. **9% Nickel Plate Test:** +… more