Structural Fitter / Fabricator

Caterpillar Caterpillar · Industrial · South Milwaukee, WI

Structural Fitter / Fabricator (FCAW) at Caterpillar's South Milwaukee facility will fit, assemble, and weld heavy structural steel components for mining machines. This hands-on role involves precision fit-up and multi-pass welding on thick plate material using complex blueprints and documented procedures in a safety-first manufacturing environment.

What you'd actually do

  1. Weld plain and alloy structural steel in all positions using Flux Cored Arc Welding (FCAW)
  2. Perform multi‑pass welds (10+ passes) on heavy plate (2+ inches thick)
  3. Read and interpret complex blueprints, weld symbols, and layout specifications
  4. Fit and assemble large structural weldments using jacks, clamps, jigs, and layout tools
  5. Clamp, tack weld, burn, air arc, and label components per blueprint and process requirements

Skills

Required

  • FCAW welding experience on heavy plate
  • Structural fitting / fit‑up experience
  • Blueprint reading and interpretation
  • Back gouging, carbon arcing, or air arcing
  • FCAW weld qualification tests
  • Structural fitter qualification tests

Nice to have

  • Strong safety-first mindset in heavy manufacturing environments
  • Ability to work independently and as part of a team
  • Proficiency with layout and measurement tools (Tape measure, level, surface gauges, Tram points, calipers, combination sets, Wedges and blocks)
  • Willingness to work overtime to meet production demands

What the JD emphasized

  • 5+ years of FCAW welding experience on heavy plate
  • 3+ years of structural fitting / fit‑up experience
  • 3+ years of blueprint reading and interpretation