Principal Cnc Programmer /sr. Principal Cnc Programmer

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

This role involves CNC programming for the fabrication of large-scale, complex, precision metal components using plasma and oxy-fuel cutters. Responsibilities include creating and validating CNC programs, reviewing technical data packages, developing nesting strategies, and performing program prove-out validation. The role also requires participation in cross-functional teams and evaluation of new equipment and technologies.

What you'd actually do

  1. Create, validate, and maintain CNC programs that support the machining of large-scale, complex, precision metal components fabricated on plasma and oxy-fuel cutters (CAM file generation, post-processor machine code generation).
  2. Perform technical data package review of components that require fabrication (CAD models & engineering drawings).
  3. Develop advanced nesting strategies to maximize material utilization and minimize scrap.
  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 5 years of relevant experience OR 3 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 work swing, graveyard, and weekend shifts (up to 20%).

Nice to have

  • Experience/proficiency working with materials requirements planning (MRP), manufacturing execution systems (MES), and SAP experience preferred.
  • Experience using Sigmanest or Pronest to create NC programs for multi-axis plasma and oxy-fuel cutters.
  • Experience in CNC programming for multi-axis waterjets and laser cutters.
  • Experience with Siemens NX CAD/CAM.