Principal/Sr. Principal Numerical Control Program Level 3/4 Northrop Grumman • Iuka, Mississippi •

PERMANENT

Posted 06/2026 Job Description Job Summary

RELOCATION ASSISTANCE

No relocation assistance available

CLEARANCE REQUIRED FOR START

No

CLEARANCE TYPE

Secret

TRAVEL:

Yes, 10 of the TimeDescription At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact peoples 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 nations 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, theyre making history. At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact peoples 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 nations 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, theyre making history. Northrop Grumman's Space Sector invites you to bring your pioneering spirit to our collaborative teams. As a Numerical/Principal Numerical Control Programmer 3/4 located in Iuka, MS, you'll be a linchpin in missions of paramount importance, defining the art of the possible from day one. Our Iuka, MS site is in search of Numerical/Principal Numerical Control Programmer 3/4 to join our growing team on a 4/10 schedule. The CNC Programmer 3 is a specialized professional responsible for converting complex 3D engineering designs into precise numerical code (G-code/M-code) that drives multi-axis machining centers using CAD/CAM software. In the aerospace industry, this role requires working with carbon fiber composite materials and occasional exotic materials (titanium, Inconel, aluminum alloys) Core Responsibilities

Program Development:

Utilize software such as Mastercam, CATIA, or Siemens NX to create toolpaths for 3-, 4-, and 5-axis milling and mill-turn machines. Designing complete NC programs for complex 3, 4, and 5-axis mills, lathes, and mill-turns using

CATIA V5/V6.

CAD/CAM Integration:

Analyze 3D CAD models and blueprints to determine the most efficient machining sequences and work-holding strategies.

Tooling & Fixture Design:

Design custom fixtures and jigs in CAD to secure aerospace components during the machining process.

Simulation & Verification:

Conducting machine simulations (e.g., using Veri cut or Completed) to ensure error-free toolpaths before physical production.

Process Optimization:

Continuously refine programs to reduce cycle times, improve tool life, and ensure consistent quality for high-value aerospace parts

Documentation:

Create detailed setup sheets and tool lists to guide machinists through the production process.

Shop Floor Support:

Troubleshooting programming issues during setup, performing "prove-outs" on the floor, and mentoring machine operators. Basic Qualifications Principal Numerical Control Programmer 3 : Bachelors degree and 4 years of experience developing CNC programs for multi-axis machines in an aerospace environment; OR Masters degree and 3 years of relevant experience; OR PhD with 0 years of relevant experience. Experience in CAD software (e.g., Siemens NX AutoCAD, SolidWorks) and CAM software (e.g., Mastercam, Gibbs CAM).

Blueprints & GD&T:

Expert ability to interpret complex technical drawings and Geometric Dimensioning and Tolerancing (GD&T) symbols. Experience with Trigonometry and Geometry for calculating complex cutting paths and angles. Experience in G-code, M-code, and post-processing; expertise in machining aerospace composites and alloys (Titanium, Inconel, Aluminum). Ability to obtain and maintain DoD Clearance and Special Program Access (PAR) per business and company needs. Sr. Principal Numerical Control Programmer 4 : Bachelors degree and 8 years of experience developing CNC programs for multi-axis machines in an aerospace environment; OR Masters degree and 6 years of relevant experience; OR PhD with 0 years of relevant experience. Experience in CAD software (e.g., Siemens NX AutoCAD, SolidWorks) and CAM software (e.g., Mastercam, Gibbs CAM).

Blueprints & GD&T:

Expert ability to interpret complex technical drawings and Geometric Dimensioning and Tolerancing (GD&T) symbols. Experience with Trigonometry and Geometry for calculating complex cutting paths and angles. Experience in G-code, M-code, and post-processing; expertise in machining aerospace composites and alloys (Titanium, Inconel, Aluminum). Ability to obtain and maintain DoD Clearance and Special Program Access (PAR) per business and company needs. Preferred Qualifications

Regulatory Compliance:

Familiarity with AS9100 standards and export control regulations (ITAR/EAR). Associates degree in a mechanical or machining related curriculum or 6 years of machining and programming experience

Primary Level Salary Range:

$84,700.00 - $127,100.00

Secondary Level Salary Range:

$105,800.00 - $158,600.00 The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidates experience, education, skills and current spanet conditions. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business. The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates. Northrop Grumman is an Equal Opportunity 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 and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions. Job and company information not to be copied, shared, scraped, or otherwise disseminated without explicit consent of JSfirm, LLC.