Senior CNC Prototype Machinist

At a Glance

• Company: H&H Machining Center, Inc.
• Location: Valencia, CA 91355 (On-site)
• Job Type: Full-Time
• Pay Range: $35 – $45 per hour (DOE)
• Shift: Monday – Friday | Day Shift (Exact hours based on production schedule)
• Overtime: As needed
• Experience Level: Senior (7+ years CNC machining experience)
• Work Authorization: U.S. Person required (ITAR compliance)

Why This Role Exists

This role exists due to continued growth in aerospace and defense prototype programs requiring high-precision, low-volume, flight-critical components.

At H&H Machining Center, this position is essential to supporting complex machining work where speed, accuracy, and consistency directly impact aerospace and defense program timelines. You will help deliver mission-critical parts where failure is not an option.

The Work You’ll Be Doing

In this role, you will:

• Set up and operate CNC mills and lathes (3, 4, and 5-axis)
• Program parts from scratch using CAM software and G-code
• Machine prototype and low-volume precision aerospace components
• Interpret complex engineering drawings and GD&T requirements
• Select tooling, set offsets, and establish machining setups
• Perform in-process inspection using precision measuring tools
• Troubleshoot toolpaths, offsets, and machining issues
• Optimize feeds, speeds, and cutting strategies for quality and efficiency
• Support AS9100D quality requirements and ITAR compliance
• Collaborate with engineering, programming, and quality teams

Machines, Controls & Software

You’ll work with equipment such as:

• Machines: CNC Mills (3, 4, 5-axis), CNC Lathes
• CAM Software: Mastercam (preferred), Fusion 360
• Programming: G-code required
• Inspection Tools: Micrometers, calipers, CMM, precision measurement instruments

Materials You’ll Work With

• Aluminum
• Steel / Alloy Steel
• Stainless Steel
• Titanium
• Inconel

What We’re Looking For

Required:

• 7+ years CNC machining experience (mills and lathes)
• Strong CAM programming ability (Mastercam preferred, Fusion 360 acceptable)
• Ability to program parts from scratch
• Strong blueprint reading and GD&T interpretation skills
• Experience holding tight tolerances (±0.0005” or better)
• Ability to set up, run, and troubleshoot CNC jobs independently
• Must be a U.S. Person (ITAR requirement)

Preferred:

• Aerospace or defense machining experience
• AS9100D environment experience
• Multi-axis (4/5-axis) machining experience
• Prototype or low-volume production experience

Why Machinists Like Working Here

Machinists choose H&H Machining Center because:

• Work on high-precision aerospace and defense prototype parts
• Stable, long-term aerospace programs
• Modern CNC equipment and organized shop environment
• Strong focus on craftsmanship and ownership of work
• Direct collaboration with engineering and quality teams
• Opportunity to work on challenging, non-repetitive machining work

Pay, Benefits & Schedule

Pay Range: $35 – $45 per hour (DOE)

Benefits:

• Health insurance
• Paid time off (PTO)
• Stable long-term employment
• Career growth in aerospace machining

Schedule:

• Monday – Friday
• Day Shift
• Overtime as required based on production demand

Apply

Interested machinists can apply directly by submitting a resume for review.