CNC Programmer Machinist Mastercam

Job Description

Job Description

5-Axis CNC Programmer / Setup Machinist - Mastercam

ABC Sheet Metal / Steeldyne Industries is seeking an experienced Senior 5-Axis CNC Programmer / Setup Machinist with advanced Mastercam experience to program, set up, prove out, and support production of precision aerospace components.

This is a hands-on CNC programming and setup role, not a programming-only desk position. The ideal candidate can take parts from print or model review through programming, setup, prove-out, troubleshooting, and production release.

We are looking for a senior CNC professional with strong Mastercam, 5-axis milling, G-code, machine-side troubleshooting, tooling, fixturing, and aerospace manufacturing experience.

Responsibilities

• Program, modify, and maintain CNC programs using Mastercam.
• Support 3-axis and 5-axis CNC milling operations.
• Develop machining strategies for 2.5D, 3D, 3+2, and/or simultaneous 5-axis machining.
• Set up machines, prove out programs, troubleshoot issues, and support production launches.
• Read, understand, troubleshoot, and safely edit G-code at the machine.
• Work directly with machinists, engineering, and quality to resolve manufacturing issues.
• Select and optimize cutting tools, holders, inserts, speeds, feeds, and machining parameters.
• Develop and improve fixtures, soft jaws, workholding, and custom tooling.
• Review blueprints, CAD models, GD&T, and customer requirements for manufacturability.
• Create setup sheets, tool lists, work instructions, and controlled program packages.
• Support first article inspections, in-process inspections, and quality documentation.
• Improve cycle time, setup time, tool life, scrap reduction, and process stability.

Required Qualifications

• 8+ years of CNC machining, milling, setup, or operating experience.
• 5+ years of Mastercam programming experience.
• Strong experience programming and supporting 3-axis and 5-axis CNC mills.
• Experience with 3+2 and/or simultaneous 5-axis programming.
• Strong G-code knowledge, including the ability to read, troubleshoot, and safely edit programs at the machine.
• Hands-on experience setting up CNC mills, proving out programs, and supporting production.
• Experience working directly at CNC machine controls.
• Strong knowledge of tooling, speeds and feeds, cutter engagement, chip control, and machining strategy.
• Experience developing or improving fixtures, workholding, soft jaws, and custom tooling.
• Ability to read blueprints, engineering drawings, CAD models, GD&T, and critical dimensions.
• Experience with in-process inspection and first article support using precision measuring tools.
• Strong machine-side troubleshooting and problem-solving skills.
• Experience in aerospace, defense, or another precision manufacturing environment.

Preferred Qualifications

• Experience with Haas CNC mills and Haas controls.
• Experience with Haas UMC-Series 5-axis machining centers.
• Experience working in an AS9100 manufacturing environment.
• SolidWorks experience for viewing models, checking geometry, or supporting manufacturing review.
• Familiarity with Macro B programming.
• Familiarity with post-processor edits.
• Mastercam certification, NIMS credentials, or related technical training.

Why Join ABC Sheet Metal / Steeldyne Industries?

• Work on precision aerospace and defense components.
• Support advanced 3-axis and 5-axis CNC machining operations.
• Play a key role in programming, setup development, tooling, fixturing, and production support.
• Join a team focused on quality, precision, accountability, and continuous improvement.

Qualified candidates should have a proven background in CNC programming, Mastercam, G-code, machine setup, tooling selection, fixture development, troubleshooting, and production support in a precision machining environment.

Company Description

Steeldyne Industries / ABC Sheet Metal is an AS9100 aerospace and ITAR certified facility. It is one of the most diversified metal fabrication companies in Southern California. We are a full-service quality-oriented manufacturing company serving over 3000 customers with a wide range of applications, from precision sheet metal to heavy plate. Our talented sheet metal engineers and skilled craftsmen work together to provide high quality custom metal products.

Servicing OEM's and end-users in the following industries:
Aerospace
Medical
Defense
Packaging
Building Materials & Construction
Electrical Equipment & Electronics
Commercial Display
Oil & Gas
Transportation
Heating & Cooling

Company Description

Steeldyne Industries / ABC Sheet Metal is an AS9100 aerospace and ITAR certified facility. It is one of the most diversified metal fabrication companies in Southern California. We are a full-service quality-oriented manufacturing company serving over 3000 customers with a wide range of applications, from precision sheet metal to heavy plate. Our talented sheet metal engineers and skilled craftsmen work together to provide high quality custom metal products.\r\n\r\nServicing OEM's and end-users in the following industries:\r\n Aerospace\r\n Medical\r\n Defense\r\n Packaging\r\n Building Materials & Construction\r\n Electrical Equipment & Electronics\r\nCommercial Display\r\n Oil & Gas\r\n Transportation\r\n Heating & Cooling\r\n\r\n\r\n