Description

Northrop Grumman Aeronautic Systems is looking for a Milling Machinist Level 3/4. The ideal candidate will have experience performing a variety of machinist responsibilities. Willing to work ANY SHIFT.

The Milling Machinist Level 3/4 supports aerospace tooling and flight hardware manufacturing through precision machining, tool design, and fixture development. This position requires a self-directed machinist capable of taking projects from concept to completion - programming, setup, machining, inspection, and final verification. The ideal candidate demonstrates advanced Mastercam skills, experience with Haas CNC mills and lathes, and a strong foundation in manual machining and fixture design.

Role Description & Responsibilities:

• Program, set up, and operate Haas CNC mills and lathes for precision tooling, fixtures, and production support parts.
• Create and modify Mastercam programs, including complex 2D and 3D toolpaths, using supplied CAD models and engineering drawings.
• Design and build custom fixturing, jigs, and tooling for one-off or prototype applications to support assembly and flight hardware operations.
• Perform manual machining (mills, lathes, drill press, surface grinders) for tool repair, modifications, or prototype development.
• Read and interpret detailed blueprints, GD&T callouts, and 3D CAD models.
• Select tools, calculate feeds/speeds, and verify machining parameters for accuracy, efficiency, and repeatability.
• Conduct self-inspection and first article verification to ensure part compliance before release to Quality.
• Collaborate with engineers, planners, and quality personnel to refine processes and resolve manufacturing challenges.
• Maintain work area organization, documentation, and adherence to 5S and FOD standards.

Basic Qualifications:

Milling Machinist Level 3:

• High School diploma or equivalent and 4 years additional education and/or related experience
• Experience in Mastercam programming for milling and turning
• Must be able to work from drawings/solid models.
• Ability to obtain and maintain DoD Clearance prior to starting work.
• Ability to obtain and maintain Special Program Access (PAR) prior to starting work.
• 4 years’ experience working in a machine shop
• US Citizenship
• Willing to work ANY SHIFT
• Must be able to lift & carry 50 pounds and stand for 4 hours at a time

Milling Machinist Level 4:

• High School diploma or equivalent and 6 years additional education and/or related experience.
• Experience in Mastercam programming for milling and turning.
• Must be able to work from drawings/solid models.
• Ability to obtain and maintain DoD Clearance prior to starting work.
• Ability to obtain and maintain Special Program Access (PAR) prior to starting work
• 4 years’ experience working in a machine shop
• US Citizenship
• Willing to work ANY SHIFT
• Must be able to lift & carry 50 pounds and stand for 4 hours at a time

Preferred Qualifications:

• Advanced proficiency in Mastercam programming for milling and turning.
• Strong working knowledge of Haas controls (NextGen or Classic).
• Demonstrated ability to design and fabricate custom fixtures and tooling.
• Deep understanding of feeds, speeds, cutter geometry, and material behavior.
• Capable of performing setups, first articles, and in-process inspections independently.
• Strong problem-solving, troubleshooting, and planning skills.
• Preferred Qualifications
• Associate’s degree or vocational certificate in machining, manufacturing technology, or related field.
• Background in aerospace, tooling, or high-precision prototype manufacturing.
• Experience with 4th/5th-axis machining, setup documentation, and digital manufacturing workflows.
• Familiarity with inspection tools, CMM processes, or laser tracker systems.
• Work Environment
• Fast-paced, high-mix, low-volume environment supporting aerospace tool fabrication and flight hardware assembly. Machinists are trusted to take ownership of their projects and deliver precision results that directly support production and test operations.