Senior CNC Prototype Machinist - Aerospace, 4/5-Axis

H&H Machining Center, Inc.; Santa Clarita (CA); On-site; USD 48,216 - 61,992; Full time

Benefits offered by this job

Health insurance

Paid time off (PTO)

Stable long-term employment

Career growth in aerospace machining

Job summary

H&H Machining Center, Inc. in Valencia, CA, is seeking a Senior CNC Machinist with over 7 years of experience in high-precision aerospace machining. The role involves setting up and operating CNC mills and lathes, programming parts using CAM software, and ensuring tight tolerances. Benefits include health insurance, PTO, and opportunities for career growth. The position is full-time with a pay range of $35 to $45 per hour based on experience.

Qualifications

• 7+ years CNC machining experience in mills and lathes.
• Strong ability to program parts from scratch.
• Experience holding tight tolerances (±0.0005” or better).
• Must be a U.S. Person due to ITAR compliance.

Responsibilities

• Set up and operate CNC mills and lathes (3, 4, and 5-axis).
• Program parts using CAM software and G-code.
• Machine prototype and low-volume aerospace components.
• Perform in-process inspection using precision measuring tools.

Skills

CNC machining experience

CAM programming ability

Blueprint reading

Troubleshooting CNC jobs

Tools

Mastercam

Fusion 360

Job description

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.