Milling Machinist 4th Axis

At a Glance

Company: Colinear Aerospace
Location: Sparta, New Jersey
Job Type: Full-Time
Pay Range: Competitive / DOE
Shift: Day Shift
Overtime: As needed
Experience Level: Mid–Senior
Industry: Aerospace
Quality System: AS9100 Rev D | ISO 9001:2015

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Why This Role Exists

Colinear Aerospace continues to expand its aerospace machining capacity and requires experienced machinists who can independently set up and run 4th-axis milling work to tight tolerances.

This role is critical to maintaining high first-pass yield, meeting quoted cycle times, and supporting first-article and repeat production in a regulated AS9100 environment.

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The Work You’ll Be Doing

In this role, you will:

• Set up and operate CNC milling machines with 4th-axis capability
• Perform complete job setups, including workholding, tooling, and offsets
• Machine complex aerospace components to tight tolerances
• Read and interpret complex blueprints, customer specifications, and GD&T
• Make real-time adjustments to feeds, speeds, and offsets to ensure part conformance
• Perform in-process inspections and support First Article Inspections (FAIs)
• Collaborate with programmers, engineers, and quality to improve cycle times and tooling
• Maintain accurate documentation in compliance with AS9100 requirements
• Keep machines and work areas clean, organized, and safety-compliant
• Perform basic preventative maintenance and monitor machine condition

This is a hands-on machining role where setup quality and attention to detail matter.

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Machines, Controls & Inspection

You’ll work with equipment and tools such as:

Machines: CNC Mills with 4th-axis capability
Controls: (Fanuc / Haas / similar – depending on cell)
Inspection Tools: Micrometers, dial bore gages, indicators, and other precision measuring equipment
Quality System: AS9100-compliant documentation and inspection processes

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Materials You’ll Work With

• Titanium
• Inconel
• Stainless Steel
• Aluminum

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What We’re Looking For

Required:

• 3–5+ years of experience operating CNC mills with 4th-axis capability
• Strong understanding of CNC setups, offsets, and tooling
• Ability to read and interpret complex blueprints and GD&T
• Experience machining aerospace or other high-precision components
• Proficiency with precision measurement tools and inspection practices
• Familiarity with AS9100 procedures and documentation
• Ability to work independently and troubleshoot machining issues

Preferred (Not Required):

• Experience optimizing cycle times and tooling strategies
• Exposure to SMED or other setup reduction methodologies
• CAM programming experience

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90-Day & 1-Year Success Expectations

First 90 Days

• Complete setups and first parts within 20% of quoted setup time
• Maintain >90% first-pass yield by minimizing scrap and rework
• Hold repeat job cycle times within ±10% of quoted cycle time
• Complete forklift and saw training/certifications

1-Year Goals

• Maintain >98% accuracy on critical dimensions
• Assess and implement at least one SMED technique to reduce setup time

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Why Machinists Like Working Here

• Aerospace work where quality and precision actually matter
• Clean, organized AS9100-certified facility
• Strong collaboration between machinists, programmers, and engineering
• Stable workload and realistic production expectations
• A shop culture that respects skilled tradespeople

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Pay & Benefits

• Competitive pay based on experience
• 401(k)
• Medical, dental, and vision insurance
• Paid time off

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Apply

Interested machinists can apply directly through hireCNC .

Apply Now or Save This Job to come back later.