Senior Supplier Development Engineer

Supplier Development Engineer (Full Time – On Site in Moorpark, CA) $45 to $55 per hour Third Party International Third Party International is seeking a Supplier Development Engineer to support a full-time, on-site role in Moorpark, California. This is a contract-to-hire opportunity with a leading defense and aerospace manufacturing operation. The ideal candidate will bring strong supplier-facing experience, technical manufacturing knowledge, and the ability to support qualification, onboarding, and improvement of critical suppliers. About the Role You will be responsible for driving supplier readiness, performance, and compliance to support the manufacture and delivery of aerospace and defense components. This includes evaluating suppliers, managing technical and quality requirements, supporting PPAP and qualification efforts, and collaborating closely with supply chain and engineering teams to ensure program success. This role is critical to ensuring supply continuity, technical compliance, and cost-effective sourcing for highly engineered products such as ordnance systems, energetic components, and complex assemblies. Key Responsibilities Assess and develop suppliers to meet technical, quality, and delivery requirements Support supplier qualification, onboarding, and compliance to customer and regulatory standards Lead or support PPAP, FAI, and other advanced quality planning processes Collaborate with engineering and supply chain teams to review drawings, specifications, and technical flowdowns Identify supplier risks and lead improvement efforts where gaps in capability or performance exist Conduct on-site visits, audits, and reviews with suppliers to support development and sustainment Track supplier performance metrics and support cross-functional resolution of supplier-related issues Required Qualifications Minimum 5 years of experience in aerospace, defense, or regulated manufacturing Strong background in supplier quality, supplier development, or manufacturing engineering Familiarity with AS9100, ISO 9001, ITAR, and other industry standards Experience with PPAP, FAI, CAPA, and root cause analysis Excellent communication and supplier relationship management skills Ability to read engineering drawings, interpret GD&T, and understand complex BOMs Proficiency with ERP/MRP systems and quality documentation Must be able to work full-time on site in Moorpark, CA Preferred Qualifications Prior experience working with ordnance, energetic devices, or highly engineered assemblies Bachelor’s degree in engineering or a related technical field Knowledge of DFARS flowdowns, supplier audits, or source inspections About Third Party International Third Party International (thirdparty.biz) is a specialized consulting and staffing firm providing experienced professionals to support the aerospace and defense manufacturing sector. We deploy engineers, buyers, and quality professionals across the country to help our clients resolve urgent operational challenges and drive sustainable performance. If you have experience supporting suppliers in regulated manufacturing and want to contribute to high-stakes aerospace programs, we invite you to apply. This is a contract-to-hire role with strong potential for long-term growth. Job Types: Full-time, Contract Pay: $45.00 - $55.00 per hour Expected hours: 40 per week Work Location: On the road