Orbital ATK Careers

Principal Machinist

Dulles, VA

Job Description

Job ID: WSS20173108-41060

With projected annual revenues in of nearly $4.5 billion, approximately 12,000 employees, and operations in about 20 states, Orbital ATK is a company on the move. Our mission is to ensure that our customers accomplish their mission — whether it’s a technological breakthrough, a satellite launch, or protecting our nation. The company is the world’s leading supplier of solid rocket motors, a leading provider of launch vehicles, satellites and other space systems, and the nation’s largest manufacturer of ammunition.

Orbital ATK Space Systems Group designs, manufactures and operates small and medium-class spacecraft for communications, imaging, scientific, exploration and national security space applications. The Group is leading supplier of space components that power and enable satellites of all classes, provides technical engineering services to government agencies and laboratories, and is developing exciting new satellite servicing and advanced space flight technologies.

United in pride and shared goals, Orbital ATK employees come from diverse backgrounds and work together to deliver reliable, innovative and affordable solutions. Work with the best and unleash your potential.

If you are a dynamic, successful, driven professional, Orbital ATK is the company that will further your experience and career growth. We offer a highly competitive salary, comprehensive benefits including, medical, dental, 401k, tuition reimbursement, and much more.


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. 

 Orbital ATK is applying entrepreneurial thinking and commercial practices to deliver reliable, innovative and affordable products and services to our customers and grow our core areas while harnessing new technologies that will take our products  and your ideas into the future.  When encouraged to think beyond the ordinary, you’ll be amazed at what you can do!

We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.

Equal Opportunity Employer M/F/V/D

Are you a Veteran? Visit our Jobs for Veterans page to find jobs that match your military background.


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