Milling Machinist 4th Axis

About the role

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 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. 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. 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 Materials You'll Work With Titanium Inconel Stainless Steel Aluminum 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 90-Day & 1-Year Success Expectations First 90 Days Complete setups and first parts within 20% of quoted setup time Maintain