CNC Setup Machinist / Junior Mastercam Programmer

ADVANCED THEORETICAL CONCEPTS, INC. - ATC; Camarillo (CA); On-site; USD 55,000 - 75,000; Full time

Job summary

Advanced Theoretical Concepts, Inc. (ATC) in Camarillo seeks a CNC setup/operator with 2+ years of experience to set up and run HAAS mills and lathe operations, with growth into Mastercam programming.

You’ll read engineering drawings, measure parts with calipers and micrometers, and collaborate with seasoned machinists on aerospace-related components, with opportunities to expand tooling and fixture development.

Qualifications

• 2+ years of CNC setup/machining experience.
• Basic Mastercam experience.
• Able to read drawings and tolerances.
• Comfortable with micrometers, calipers, and indicators.
• Good understanding of tooling, offsets, and workholding.
• Reliable and able to work independently.
• HAAS mill and/or lathe experience (preferred).

Responsibilities

• Set up and operate HAAS CNC mills and lathes.
• Perform tooling, offsets, workholding, and job prove-outs.
• Read and interpret engineering drawings and CAD models.
• Inspect parts using precision measuring instruments.
• Modify and develop Mastercam programs based on experience level.
• Assist with troubleshooting, tooling, and fixture development.

Skills

CNC setup

Mastercam

Reading drawings

Measuring tools

Independent worker

Tools

HAAS mills

Job description

Company: Advanced Theoretical Concepts, Inc. (ATC)
Location: Camarillo, CA 93012
Pay: Largely dependent on experience
Job Type: Full-Time
Shift: Day shift
Experience: 2+ years
Machines: HAAS mills and lathes
CAM Software: Mastercam

Why This Job Is Worth Considering

ATC is a small precision CNC shop in Camarillo building parts for space, defense, automotive, and medical customers, and this role is a real path from setup work into programming. You will work directly with experienced machinists and programmers on precision and aerospace-related components, with room to take on more Mastercam programming, tooling, and setup responsibility as your skills grow. You do not need to already be a Mastercam expert — a solid setup background with basic Mastercam knowledge is enough to start.

What You’ll Be Doing

• Set up and operate HAAS CNC mills and lathes
• Perform tooling, offsets, workholding, and job prove-outs
• Read and interpret engineering drawings and CAD models
• Inspect parts using precision measuring instruments
• Modify and develop Mastercam programs based on experience level
• Assist with troubleshooting, tooling, and fixture development

Machines, Controls and Software

HAAS CNC mills and lathes. Mastercam programming — basic to intermediate experience expected, with growth into more advanced programming supported on the job.

What We’re Looking For

Required

• 2+ years of CNC setup/machining experience
• Basic Mastercam experience
• Able to read drawings and tolerances
• Comfortable with micrometers, calipers, and indicators
• Good understanding of tooling, offsets, and workholding
• Reliable and able to work independently

Preferred

• HAAS mill and/or lathe experience

Hours:
7:00 AM to 3:30 AM. Full-time, day shift, in Camarillo.

About Advanced Theoretical Concepts, Inc.

For the past 25 years, ATC has been a leader in manufacturing precision components for space exploration, military, and automotive applications, as well as long-run production of machined parts for the medical industry, using precision Swiss machining and modern automation. Spanish-speaking applicants are welcome.