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Job Description

Overview

At Trinity Products, we’re a 100% employee-owned team driven by pride, precision, and performance. As a Welder on our Weekend schedule, you’ll play a vital role in creating and refining high-quality steel pipe products for industries across the nation.

Responsibilities

  • Perform weld preparation, welding, and finishing tasks in accordance with detailed specifications, blueprints, and drawings.
  • Use submerged arc welding (SAW) techniques to repair and strengthen weld seams on large steel pipes.
  • Pass ultrasonic testing (UT) to include proper back gouging with air arc.
  • Set up and fine-tune welding fixtures and parameters for optimal welds.
  • Execute grinding, fitting, and finishing operations using manual and power tools.
  • Use power tools to properly prep joints for welding.
  • Operate and maintain welding equipment to ensure safe and effective performance.
  • Use precision measuring instruments such as degree finder, calipers, and micrometers to inspect and verify work.
  • Follow all safety protocols and maintain a clean, organized work environment.
  • Use an overhead bridge crane to safely move heavy, large steel materials.

Requirements

  • A minimum of 1 year of welding experience across various techniques is preferred.
  • Successful completion of an internal weld test is required.
  • Experience with D1.1 structural welding code, application, and quality standards.
  • Must be able to identify small defects in materials and joints that could affect structural integrity.
  • Understanding three-dimensional space is essential for positioning materials and effective solutions.
  • Steel-toe boots, sleeved shirts, and a welding hood are required.
  • Experience operating an overhead crane is a big plus.
  • Comfortable working in varied ambient temperatures.
  • Able to stand, move, and stay active throughout your shift.
  • Punctuality and dependability matter in a fast-paced production environment.

Benefits

  • Health Insurance
  • Dental
  • Vision
  • 401k
  • PTO

Additional Information

  • Weekend schedule: Friday - Sunday, 5:00am - 5:30pm.
  • Supports both St. Charles Steel Mill and O'Fallon, MO locations.

Benefits

Health Insurance
Dental
Vision
401k
PTO
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How this job compares in O'Fallon, MO

Pay in context

This employer didn't publish a rate. For reference, welding jobs across Missouri currently run a median of $25/hr in our index, with the middle half of them falling between $23–$28/hr across 54 postings with published pay. That median is a reasonable floor to anchor on when a recruiter asks what you're looking for.

The local market in O'Fallon, MO

O'Fallon, MO is a small market in our index: 1 other active welding opening alongside this one, from 1 employer. Across Missouri as a whole we're tracking 85 other active welding openings from 56 employers. With this few local postings, most welders here end up either commuting or looking at travel work. Browse welding jobs across Missouri.

Trinity Products LLC currently has 1 other opening live in Missouri, which is usually a sign of either steady growth or steady turnover — worth asking which in the interview.

The most active employers in Missouri at the moment, by number of open welding reqs, are QPS Employment Group (8), Welding Shop in Kansas City, MO (6), and Leonardo DRS (5). Volume like that usually means either a genuine expansion or a staffing agency working several client sites — worth knowing which before you apply.

Within Missouri, the best-paying metros we track by median hourly rate are Saint Charles at $26/hr and Kansas City at $26/hr. If you can relocate or commute, that spread is worth factoring in.

What you'll be running

This posting calls for TIG. TIG (GTAW) uses a non-consumable tungsten electrode with filler added by hand, giving the operator the most control of any process. It is slow, demanding, and the standard for stainless, aluminum, and anything where the bead has to look as good as it holds.

Certifications this posting mentions

  • AWS D1.1 — the American Welding Society's Structural Welding Code for steel. It governs almost all building and structural steel work in the US, so a D1.1 qualification is the baseline credential for construction and ironworking.

Read straight from this posting's text. Confirm the exact qualification the employer wants before you test — requirements vary by shop even under the same code.

Similar openings near O'Fallon, MO

Pay figures are medians computed from live postings in the Welding Pros index, not from survey data, and they move as employers post. Welder (Weekends) figures were last recalculated when this page was built.