Job Description

At a Glance

Company: Gretna Machine Shop
Location: Houston, TX (Northwest)
Job Type: Full-Time
Pay Range:

• EDM Operator: $20 – $25/hr
• EDM Programmer: $25 – $30/hr
  Shift: Day Shift (with potential future flexibility)
  Overtime: Available
  Experience Level: Entry to Mid (Operator) | Mid-Level (Programmer)
  Work Authorization: U.S. work authorization required

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Why This Role Exists

This role exists to support growing demand for high-precision components at Gretna Machine Shop, particularly in aerospace and energy applications where EDM is critical.

As the shop continues to expand capabilities, this position plays a key role in producing complex parts that require tight tolerances, intricate geometries, and high surface finish standards.

This is a strong opportunity for:

• Operators looking to step into programming
• Programmers who want to work on real, high-spec EDM work

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The Work You’ll Be Doing

• Program, set up, and operate ONA Wire EDM machines
• Develop and edit EDM programs (machine control and/or offline CAM)
• Read and interpret blueprints, CAD models, and GD&T
• Select proper wire, flushing strategy, and cutting parameters
• Perform setups, offsets, alignments, and first article inspections
• Monitor machining for accuracy, surface finish, and tolerance
• Inspect parts using micrometers, calipers, height gauges, and comparators
• Troubleshoot issues (wire breaks, accuracy, process deviations)
• Perform routine maintenance and keep machines running efficiently
• Support production while machines are running (deburring, marking, etc.)
• Collaborate with engineering, quality, and machining teams

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Machines, Equipment & Environment

• ONA Wire EDM machines
• Precision inspection tools:
  • Micrometers, calipers, height gauges
  • Optical comparators
• Clean, organized production floor inside a
  50,000 sq. ft. air-conditioned facility

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What You’ll Be Working On

• Parts: Precision aerospace and energy components
• Work Type: High-mix, low-volume + complex geometries
• Tolerances: Tight-tolerance, high-spec work
• Materials:
  • Aluminum
  • Stainless steel
  • Tool steels
  • Nickel alloys (Inconel, etc.)

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What We’re Looking For For Operators ($20–$25/hr)

• Experience operating EDM or CNC machines
• Ability to read blueprints and basic GD&T
• Familiarity with inspection tools
• Strong attention to detail and reliability

For Programmers ($25–$30/hr)

• Experience programming Wire EDM (ONA preferred)
• Strong understanding of EDM cutting strategies and parameters
• Ability to interpret complex drawings and GD&T
• Experience with CAD/CAM or offline programming software

Nice to Have

• Aerospace or high-precision manufacturing experience
• Tool & die or mold making background
• Lean manufacturing or continuous improvement exposure

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Why Machinists Like Working at Gretna Machine Shop

• Work on complex, non-repetitive parts
• Exposure to aerospace and energy components
• Opportunity to grow from operator → programmer → advanced roles
• Clean, air-conditioned shop
• Long-tenured team and strong internal knowledge base
• Investment in equipment and expanding capabilities

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