Castelion
Senior Buyer, CNC Machined Parts & Assemblies
Torrance, CA +1 · Senior · Full-time · Posted Oct 28, 2026
- Location
- Torrance, CA
19951 Mariner Ave, Torance, CA 90503 - Experience
- 5+ years; experience in aerospace, defense, space, automotive, or another complex manufacturing environment.
- Education
- Bachelor’s degree or equivalent experience in supply chain, business, engineering, manufacturing, operations, or a related discipline.
- Visa sponsorship
- The role requires access to export-controlled information; employment is contingent on being able to access applicable information without additional export licensing. A security clearance or other government authorization may be required if the position is designated accordingly.
About the job
Sources and manages suppliers for CNC-machined parts and assemblies, ensuring competitive cost, quality, delivery, and supply readiness for aerospace and defense development and production.
What you'll do
- Source, qualify, negotiate with, and manage suppliers for machined components and assemblies.
- Coordinate with engineering, manufacturing, quality, planning, and finance on sourcing strategies, supplier performance, and material availability.
- Manage purchase orders, supplier risks, quality issues, and compliance with contractual and export-control requirements.
What they ask for
- 5+ years of relevant purchasing, sourcing, supply chain, or supplier-management experience in a complex manufacturing environment.
- Demonstrated experience sourcing CNC-machined parts or assemblies in metallic and non-metallic materials.
- Experience interpreting engineering drawings, specifications, GD&T, bills of material, and manufacturing or inspection requirements.
- Active U.S. Government security clearance or ability to obtain one, as required; ability to access applicable export-controlled information without additional export licensing.
Nice to have
- Hands-on knowledge of CNC machining and related materials, finishing, inspection, or special processes.
- Relevant certifications such as APICS, CPSM, or Six Sigma; experience with MRP/ERP systems or ITAR/EAR-controlled hardware.
Tools
CNC machining, GD&T, MRP/ERP, Excel, SQL, CMM, AS9100, AS9102
Model-written summary · the original posting is authoritative