CNC Programmer / Setup Machinist

Primus Aerospace is a leading manufacturing partner to aerospace, defense, and space OEMs and Tier I suppliers. The company specializes in producing high-tolerance, complex geometry components from standard and exotic metals, supporting mission-critical civilian and defense programs.


Job Purpose


The CNC Programmer / Setup Machinist is responsible for programming, setting up, and proving out CNC machining processes to ensure efficient, high-quality production. This role combines CAM programming with hands-on machine setup and first-piece validation, supporting both new and repeat production work.


Key Responsibilities


Programming & Process Development

• Develop, modify, and optimize CNC programs for 3, 4, and 5-axis mills and CNC lathes using CAM software (e.g., Mastercam, NX, or similar)


• Interpret engineering drawings, GD&T, and specifications to create accurate and efficient machining processes


• Select tooling, workholding, and machining strategies to support optimal cycle times and part quality


• Support new product introduction (NPI) by developing and validating initial machining processes

Setup & Prove-Out

• Perform complete machine setups including tooling, fixturing, offsets, and program verification


• Run and validate first-piece parts to ensure conformance to specifications


• Troubleshoot and resolve issues related to setup, tooling, programs, and machine performance


• Establish stable, repeatable setups and clear instructions for operators

Production Support & Continuous Improvement

• Collaborate with machinists, operators, and cross-functional teams to ensure efficient production flow


• Monitor and improve cycle times, tool life, and overall process efficiency


• Maintain and update CNC programs, setup sheets, and work instructions

• Identify and implement process improvements including tooling, fixturing, and programming enhancements

Quality & Compliance

• Ensure all parts meet quality standards and customer requirements, including GD&T specifications


• Validate part quality through inspection processes and documentation (e.g., first article, in-process checks)


• Maintain compliance with all safety, quality, and operational procedures


• Support 5S and overall shop organization standards

Requirements

• Minimum of five (5) years of combined CNC programming and setup experience (mills and/or lathes)


• Strong proficiency with CAM software (Mastercam, NX, or similar)


• Experience with multi-axis machining (3, 4, and/or 5-axis)


• Strong understanding of GD&T, blueprint reading, and machining mathematics


• Proven ability to perform full machine setups and prove-out new jobs


• Experience working with tight-tolerance components, preferably in aerospace or similar industries


• Strong problem-solving skills and attention to detail


• Ability to work collaboratively in a fast-paced manufacturing environment


• Strong work ethic and commitment to quality and continuous improvement

Preferred Qualifications

• Experience with exotic materials (e.g., titanium, tungsten)


• Experience with high-mix / low-volume production environments


• Familiarity with multiple machine platforms (Haas, Mazak, DMG Mori, Okuma, etc.)

To adhere to U.S. Government international trade regulations, applicant must be a U.S. Citizen.

Our work environment is fast-paced and professional while providing continued growth fostered by our commitment to teamwork. We offer comprehensive benefits including PTO, paid holidays, medical, dental and vision insurance, 401K, long-term and short-term disability.

At Primus Aerospace, we are proud to be an Equal Opportunity Employer. We are committed to creating an inclusive environment that supports, respects, and celebrates all individuals. 

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