Sr. Principal Cnc Programmer

Northrop Grumman Northrop Grumman · Aerospace · Sunnyvale, CA +1 · Manufacturing and Production

This role focuses on creating and editing CNC programs for the fabrication of large-scale, complex, precision metal components. It involves CAD model validation, machining process development and optimization, tooling selection, and program prove-out. The role also requires collaboration with cross-functional teams to identify process improvements and mitigate manufacturing risks. Experience with Geometric Dimensioning and Tolerancing (GD&T) and CAM software is essential. A Secret clearance is required.

What you'd actually do

  1. Create and edit CNC programs that support the machining of large-scale, complex, precision metal components fabricated on multiple-axis CNC milling & turning machining centers (CAM file generation, post-processor machine code generation).
  2. Perform technical data package review of components that require fabrication (CAD model & engineering drawing validation).
  3. Perform machining process development & optimization (part setup/fixturing, machining strategy/order of operations, tool selection, speed/feed process parameter selection).
  4. Identify, select, and procure appropriate tooling for job-specific applications (based on part material, geometry, features, tolerances, system rigidity, and equipment capability).
  5. Perform program prove-out validation (computer simulation tools, ‘tabletop’ peer reviews, First Time Process Reviews, machine dry runs).

Skills

Required

  • Bachelor's Degree with a minimum of 8 years of relevant experience; OR 6 or more years with a Master's (4 years of additional relevant work experience may be considered in lieu of a degree).
  • Minimum 2 years of direct experience working in a machining CNC programming role.
  • Experience reading, interpreting, and understanding manufacturing blueprints and process plans.
  • Minimum 2 years of experience using Geometric Dimensioning and Tolerancing (GD&T).
  • Experience creating and editing CNC programs that support the machining of precision components.
  • Experience creating and/or editing 3D CAM files.
  • Ability to obtain a US Government Secret clearance.
  • U.S. Citizenship.

Nice to have

  • Experience/proficiency working with materials requirements planning (MRP), manufacturing execution systems (MES), and SAP experience preferred.
  • Experience using Siemens NX CAD/CAM software to create NC programs for multiple-axis CNC milling & turning machining centers.

What the JD emphasized

  • Secret clearance