Location

El Cajon, CA, US

Title

Senior CNC Machinist / Programmer

Full Description

Job description

We are seeking a Senior CNC Machinist / Programmer to take a leading role in producing and developing precision drivetrain components for high-performance and motorsports applications.

This is a hands-on role for someone who can own the entire machining process-from programming and setup through optimization and production. You'll play a key role in improving processes, increasing efficiency, and helping elevate the overall capability of the shop.

What You'll Work On

State-of-the-art motorsport drivetrain components

Tight-tolerance, performance-critical parts

Prototype and low-volume, high-complexity machining

Materials and geometries where precision and durability are critical

Key Responsibilities

Program CNC lathes, vertical mills, and horizontal mills (3 & 4 axis) using CAM software and/or G-code

Manage and mentor less experienced machinists and help elevate overall team capability

Set up and operate machines to prove-out and refine programs

Develop machining strategies, tooling packages, and workholding solutions

Optimize cycle times without compromising quality

Troubleshoot complex machining, tooling, and material challenges

Perform first article inspections and ensure conformance to GD&T

Collaborate with engineering on design for manufacturability (DFM)

Drive continuous improvement in machining processes and shop efficiency

Maintain high standards for quality, organization, and safety

Required Experience

Minimum 10 years CNC machining experience (lathes and mills)

Minimum 5 years CNC programming experience (CAM and/or G-code)

Proven ability to program and machine complex, tight-tolerance parts independently

Strong experience with live tooling lathes and vertical and horizontal mill work (3 & 4 axis)

Technical Qualifications

Proficiency in CAM software (Mastercam, or similar)

Deep understanding of feeds, speeds, tooling, and cutting strategies

Strong knowledge of materials including high-strength alloys (e.g., 9310, 300M, Maraging, etc.)

Ability to read and interpret complex prints and GD&T

Experience holding tight tolerances consistently

Strong troubleshooting and problem-solving ability

Leadership & Growth Expectations

Take full ownership of jobs from programming through production

Establish and refine best practices for programming and setups

Mentor and train less experienced machinists

Contribute to expanding shop capabilities and efficiency

Act as a technical leader within the team

Preferred (But Not Required)

Experience in motorsports, aerospace, or high-performance automotive

Fixture and workholding design experience

Experience improving workflows and standardizing processes

Why This Role Is Different

Work on high-performance, non-repetitive components

Direct impact on advanced drivetrain technology

High level of autonomy and technical ownership

Opportunity to help shape the future direction of the shop

Be part of a small, elite team focused on precision and performance

Compensation & Benefits

Competitive senior-level compensation (based on experience)

Overtime opportunities

Health benefits

Retirement plan with company matching

Paid time off and holidays

Long-term growth and leadership opportunities