Experienced Vessel Fitter/Welder

Location: Sapulpa, OK

Company: GasTech Engineering LLC

Join a team where precision meets purpose.

At GasTech Engineering, we don't just build equipment we engineer solutions that power the global energy industry. For over 30 years, we've been a trusted name in custom gas processing plant equipment, and now we're expanding our elite manufacturing team.

We're looking for Skilled Vessel Welders who take pride in clean, code-compliant welds and thrive in a high-performance, safety-first environment.

Requires specialized welding training and/or a minimum of 8 years of relevant welding experience, demonstrating advanced proficiency. Equivalent combinations of training, experience, and skill level will also be considered.

What You'll Do

Weld pressure vessels and structural components using FCAW and GMAW

TIG weld pressure piping and branch connections to ASME standards

Fit and assemble vessel components from engineering drawings

Perform hydrotesting, weld repairs, and oxy-fuel cutting

Interpret P&IDs, WPSs, and weld maps

Consistently demonstrate code quality. Be proficient in the following codes: API, B313, UW51, UW52, B1.1, STS, etc.

Requirements

Requirements: What You Bring

8+ years of vessel welding experience (TIG, FCAW, or GMAW)

Ability to pass a 6G weld test or 3G &fac34;" plate 30º bevel.

Strong fitting skills and familiarity with spool layout or vessel fabrication

Knowledge of NDE methods (PT, MT, UT, RT) and hydrotesting

A vocational welding background and a track record of quality and reliability

Weld Test Requirements:

Plate Testing for Structural and Vessel Welding

3G &fac34;" plate 30º bevel.

Open root downhill with GMAW (aka MIG)

Uphill fill and cap with FCAW (aka Flux)

Full penetration all welded from one side, no weld on the backside.

The test will be side visually inspected by a QW-462.2 by a certified welding inspector per ASME Section XI QW-302.4, x-ray, cut and bent.

Pipe Test for Pipe Welding

6G- 45º Vertical up without backing gas 2" Schedule 160 Carbon Steel Pipe

Root, Hot pass and cap all GTAW (aka Tig)

The test will be visually inspected onsite by a certified welding inspector per ASME Section XI QW-302.4, once visual accepted it will also be radiographically tested per QW-191.