Senior CNC Programmer & Machinist — Mastercam, 4–5 Axis

Round-Peg Solutions (RPS) Limited; California; On-site; USD 85,000 - 120,000; Full time

Job summary

Round-Peg Solutions (RPS) Limited in Irvine, CA is seeking an experienced CNC Programmer/Machinist to own programming, machine setups, first-article production, and process optimization.

This is a hands-on programming role requiring Mastercam proficiency and a strong background in multi-axis CNC machining, able to take parts from drawing to production while collaborating with engineering and quality teams.

Qualifications

• 5+ years of professional CNC programming and machining experience.
• Strong hands-on experience programming with Mastercam.
• Experience programming 4-axis and 5-axis CNC milling machines.
• Proven ability to independently program, set up, and troubleshoot CNC machining operations.
• Strong understanding of machining processes, tooling, tolerances, and technical drawings.
• Ability to interpret 3D models using SolidWorks and 2D drawings using AutoCAD.

Responsibilities

• Develop, modify, and optimize CNC programs using Mastercam for 4- and 5-axis machines.
• Independently perform CNC machine setups, tooling selection, and first-article production.
• Interpret complex drawings, 3D models, and specifications for machining.
• Troubleshoot machining and programming challenges to improve quality and efficiency.
• Operate CNC machines as needed to support production schedules.
• Collaborate with engineering and quality teams to ensure parts meet specs.
• Support root cause analysis and continuous process improvements.
• Provide guidance and training to other machinists.

Skills

Mastercam

5-axis programming

4-axis programming

Machining operations

SolidWorks

AutoCAD

Problem solving

Tools

Mastercam

SolidWorks

AutoCAD

Job description

Round-Peg Solutions (RPS) Limited in Irvine, CA is seeking an experienced CNC Programmer/Machinist to own programming, machine setups, first-article production, and process optimization.

This is a hands-on programming role requiring Mastercam proficiency and a strong background in multi-axis CNC machining, able to take parts from drawing to production while collaborating with engineering and quality teams.