Northrop Grumman Innovation Systems Careers

Principal Machinist

Dulles, VA

Job Description

Job ID: WSS20173108-41060

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people’s lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation’s history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they’re making history.

 Northrop Grumman Innovation Systems designs, builds and delivers space, defense and aviation-related systems to customers around the world. Our main products include launch vehicles and related propulsion systems; missile products, subsystems and defense electronics; precision weapons, armament systems and ammunition; satellites and associated space components and services; and advanced aerospace structures.


Under general supervision, manufacture detailed parts and tools from blueprints, sketches, drawings, and verbal instructions using a variety of machining tools and equipment. Determine how to set up machines based on instructions received. Senior Level Machinist with experience using MASTERCAM software to program CNC Mill and Lathe. Responsible for programming, fixturing , setup and operating CNC Mill/Lathe. Using CAD 3-D model (step file) to determine Geometric Dimensioning and Tolerance High School graduate with Trade School certified Machinist Apprentice program. 15 years experience in a machine shop. Must be fluent in English with excellent verbal and written skills. The position requires occasional second shift and weekends.


  1.    Study blueprints, sketches, drawings, Technical Manuals, specifications, or sample part to                   

        determine dimensions and tolerances of finished workpiece, sequence of operations and

        setup requirements.

  2.    Operate mills, lathes, drill presses, grinders, jig bores, and other machining equipment                         

        using mathematical and geometrical calculations.

  3.    Select, align and secure holding fixtures, cutting tools, attachments, accessories, and                         

        materials on machines.

  4.    Set controls to regulate machining factors such as speed, feed, coolant flow, and depth                      

        and angle of cut, or enter commands to retrieve, input, or edit computerized machine

        control media.

  5.    Start and observe machine operation to detect malfunctions or out-of-tolerance machining,                  

         and adjust machine controls.

  6.    Verify conformance of finished workpiece to specifications.                                                                

  7.    Perform routine maintenance per manufacture instructions.                                                                  

  8.    Perform related duties as assigned or required.                                                                                     


   A High School Diploma or General Education Degree or equivalent experience is required.


   15 years of related experience is required.


   Knowledge of Word is required. 

Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO/AA and Pay Transparency statement, please visit U.S. Citizenship is required for most positions.

Job Type: Full Time
Desired Travel: less than 25%
Years of Experience: +10 Years
Education: High School/GED
Expertise: Operations
Group: Space