CNC Machinist; Clearance Required Security Clearance

Position: CNC Machinist (CLEARANCE REQUIRED) with Security Clearance
Job Number 718321

Description:

Role Overview
Lockheed Martin Space is seeking an Experimental CNC Machinist to support precision manufacturing in a production and development environment. In this role, you will machine and inspect complex parts to exacting specifications, supporting spacecraft and space-related programs that demand accuracy, consistency, and collaboration. You will work with CNC machining centers, engineering documentation, and manufacturing teams to produce high-quality components while contributing feedback that helps improve processes and efficiency.

This position is based onsite in King of Prussia, Pennsylvania. Key Duties / Responsibilities

• Machine, fabricate, and assemble parts according to engineering prints and operation sheets using CNC equipment

• Set up and operate horizontal and vertical CNC machining centers

• Perform machining operations such as drilling, milling, boring, and tapping

• Interpret Computer-Aided Design (CAD) data, prints, and sketches

• Verify Numerical Control (NC) code during setup and execution

• Perform secondary operations during machine cycles, including deburring and straightening

• Inspect parts before and during production using standard measuring tools such as gauges, micrometers, indicators, calipers, and depth gauges

• Select, install, and adjust cutting tools and machine offsets

• Provide feedback to Manufacturing Engineers on processes, tooling, and fixturing to support efficient production

• Analyze machining results against performance targets and communicate job expectations for production runs

• Maintain coolant levels and perform minor preventive maintenance on equipment

• Support production schedules by working overtime, weekends, alternate shifts, or off-Fridays when required Work Environment

• Hands-on manufacturing environment with CNC machining equipment

• Work is performed onsite in a production and experimental setting

• Collaboration with Manufacturing Engineers and production teams

• Fast-paced work aligned with program schedules and delivery targets

• Flexible scheduling may be required to meet production demands Company Mission & Program Overview
Lockheed Martin Space designs and builds technologies that support national security, scientific discovery, and space exploration. The organization focuses on advancing spacecraft systems, strengthening resilience, and delivering reliable solutions that connect people, data, and missions across the globe. This role directly supports space programs by ensuring precision-manufactured components meet strict technical and quality requirements. Why Lockheed Martin

• Work on programs that have real-world impact on space, security, and technology

• Be part of a long-standing organization known for engineering excellence and mission-driven work

• Collaborate with skilled professionals across manufacturing, engineering, and operations

• Contribute to complex, meaningful projects that demand precision and accountability Why You'll Love This Role

• Hands-on machining work with challenging, high-precision components

• Opportunities to contribute ideas that improve manufacturing processes

• Exposure to experimental and production machining in a space-focused environment

• A role where craftsmanship, accuracy, and teamwork are valued

• Clear expectations and meaningful contribution to critical programs

Basic Qualifications:

• Active Secret security clearance

• Ability to read and interpret engineering blueprints and technical drawings

• Working understanding of G-code and M-code used in Computer Numerical Control (CNC) machining

• Ability to independently program, edit programs, set up and run CNC or conventional machines.

• At least 25 years of related machining or manufacturing experience
Desired

Skills:

• Experience with Siemens 840D control systems (Celos)

• Experience with Mazatrol controls

• Working knowledge of Mastercam and NX programming software
Security Clearance Statement:
This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: Secret
Other Important Information You Should Know
Expression of Interest:
By applying to this job, you are expressing interest…