Senior Supplier Dev & Quality Engineer - Aerospace Defense

Castelion Corporation; Torrance (CA); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Castelion Corporation is seeking a Senior Supplier Development & Quality Engineer to own supplier development and supplier quality for a portfolio of mission-critical hardware. You will collaborate across engineering, manufacturing, quality, and sourcing to translate designs into capable, scalable production processes while ensuring compliance with technical and quality requirements.

You will be the technical and quality interface for suppliers, manage design-for-manufacturability reviews,

Qualifications

• Bachelor’s degree in Mechanical, Aerospace, Industrial, Manufacturing, or related field.
• 6+ years of experience in supplier development, supplier quality, or related roles in aerospace/defense/high-reliability hardware.
• Hands-on experience taking hardware from development through production with external manufacturing partners.
• Experience reading engineering drawings, GD&T, specifications, inspection reports, and process documentation.
• Ability to lead cross-functional work, communicate clearly with suppliers and internal stakeholders, and make sound decisions.

Responsibilities

• Lead on-site supplier recovery efforts involving constrained capacity, delays, shortages, tooling issues, and escalation points.
• Serve as the primary technical and quality interface for suppliers; translate drawings and acceptance criteria into manufacturing and inspection plans.
• Collaborate with Design/Manufacturing Quality and Strategic Sourcing during NPI to evaluate suppliers and reduce risk.
• Conduct DFM & DFC reviews for materials, tolerances, processes, inspection methods, and tooling.
• Plan and execute supplier qualification activities, audits, and production-readiness within AS9100/ISO 9001-based systems.
• Drive nonconformances, root-cause analysis, and corrective actions (8D, DMAIC) to prevent recurrence.

Skills

Leadership

Cross-functional collaboration

Technical problem solving

Project management

Supplier engagement

Effective communication

Education

Bachelor’s degree in Mechanical/Aerospace/Industrial/Manufacturing or related field

Master’s degree (preferred)

Tools

AS9100 / ISO 9001 knowledge

ERP/MRP/PLM systems

Excel/SQL data analysis

Job description

Castelion Corporation is seeking a Senior Supplier Development & Quality Engineer to own supplier development and supplier quality for a portfolio of mission-critical hardware. You will collaborate across engineering, manufacturing, quality, and sourcing to translate designs into capable, scalable production processes while ensuring compliance with technical and quality requirements.

You will be the technical and quality interface for suppliers, manage design-for-manufacturability reviews,