Prototype Fabrication Technician – TIG Welding & Machining

Mach-Industries; Los Angeles (CA); On-site; USD 52,000 - 61,000; Full time

Job summary

Mach Industries in Huntington Beach, CA, is seeking aFabrication Technician to prototype and manufacture parts including test fixtures, structural assemblies, and hardware for R&D. The role emphasizes precise TIG welding, sheet metal work, and reading CAD drawings to translate designs into physical components.

You will collaborate with engineers, support DFMA feedback, perform dimensional checks, and help with lean manufacturing.

Qualifications

• 5+ years of hands-on fabrication experience in a fast-paced prototyping or production environment.
• Proficiency in TIG welding, including work with aluminum, stainless steel, and carbon steel.
• Experience with sheet metal fabrication, structural assembly, and mechanical integration.
• Working knowledge of Flow Waterjet operation.
• Ability to interpret technical drawings and follow precise fabrication instructions.
• Familiarity with manual machining (mill, lathe, grinder) and general metalworking tools.
• Strong attention to detail, safety-minded, and capable of working independently or in cross-functional teams.

Responsibilities

• Fabricate vehicle components, structural assemblies, and custom test fixtures using TIG welding, sheet metal techniques, and general metalworking.
• Perform high-quality welds (horizontal, vertical, and overhead) on aluminum, stainless steel, and carbon steel for both prototype and production applications.
• Interpret engineering drawings and technical documents to execute builds with minimal supervision and high accuracy.
• Collaborate closely with engineers to execute prototype builds and provide actionable DFMA feedback.
• Conduct structural and fluid system assembly, including routing and integration of tubes, brackets, and hardware.
• Support dimensional checks, visual weld inspections, and preparation for NDT methods such as X-ray and dye penetrant when required.
• Apply lean manufacturing practices and contribute to continuous improvement of fabrication processes and workflows.
• Maintain and operate manual machines (mills, lathes, grinders) as needed to support custom fabrication work.
• Take ownership of shop cleanliness, organization, and safety protocols.
• Available to work extended hours and weekends as needed.

Skills

Fabrication

TIG welding

Sheet metal

Flow Waterjet

Technical drawings

Manual machining

Attention to detail

Team collaboration

Tools

Siemens NX

SOLIDWORKS

CNC

Job description

Mach Industries in Huntington Beach, CA, is seeking aFabrication Technician to prototype and manufacture parts including test fixtures, structural assemblies, and hardware for R&D. The role emphasizes precise TIG welding, sheet metal work, and reading CAD drawings to translate designs into physical components.

You will collaborate with engineers, support DFMA feedback, perform dimensional checks, and help with lean manufacturing.