Radiant Nuclear-posted 27 days ago
Full-time • Mid Level
Onsite • El Segundo, CA
101-250 employees

Radiant is seeking a CNC Programmer who will contribute to the development of our microreactor unit. you'll be a key contributor to Radiant, programming, setting up, and operating CNC machines to produce precision components that power our most critical systems. You'll translate engineering designs into high-quality, manufacturable parts ensuring accuracy, efficiency, and innovation at every step. This role requires hands-on experience with CNC machining, a deep understanding of G-code and CAM software, and a passion for solving complex manufacturing challenges. You'll work closely with engineers, machinists, and quality teams to push the limits of what's possible in precision manufacturing.

  • Develop and optimize CNC programs for 3-axis, 4-axis, and 5-axis mills, lathes, and multi-axis machining centers.
  • Set up and operate CNC equipment to validate new programs and processes.
  • Read and interpret complex engineering drawings, 3D models, and GD&T specifications.
  • Collaborate with design and manufacturing engineers to improve part manufacturability and reduce cycle times.
  • Select proper tooling, workholding, and cutting parameters for a variety of materials (aluminum, titanium, stainless steel, Inconel, etc.).
  • Troubleshoot machining and programming issues on the floor to maintain high-quality output and machine uptime.
  • Continuously improve machining processes through data-driven feedback and experimentation.
  • Maintain adherence to safety and quality standards across all machining operations.
  • 5+ years of experience in CNC machining and programming in a precision manufacturing or aerospace environment.
  • Proficiency in CAM software (e.g., Mastercam, Siemens NX, Fusion 360, or CATIA).
  • Strong understanding of G-code, M-code, feeds, speeds, and toolpath strategies.
  • Hands-on experience setting up and operating mills, lathes, and multi-axis machining centers.
  • Ability to interpret complex technical drawings, GD&T, and 3D CAD models.
  • Proven ability to take a part from print to finished component.
  • Strong problem-solving skills and attention to detail.
  • Experience with 5-axis machining and post-processor development.
  • Familiarity with aerospace or high-performance hardware manufacturing.
  • Experience with exotic materials (e.g., titanium, Inconel, carbon composites).
  • Working knowledge of ERP/MES systems and digital manufacturing workflows.
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