About Proponent:

Proponent is the world’s largest independent, employee-owned distributor of aircraft parts, serving customers worldwide. With more than 600 employees across 14 global locations, we take pride in helping keep thousands of aircraft flying safely and efficiently every day. For over 50 years, we’ve built the systems, relationships, and expertise that aviation relies on, from responsive quoting and on-time shipments to data-driven improvements that reduce turnaround time and cost. As a 100% employee-owned company, everyone at Proponent is an owner, which means we share responsibility for our success, look out for one another, and bring dedication and creativity to aviation logistics. Guided by our core values, empathy, intelligence, agility and integrity, we work as a trusted partner to keep aircraft in service and customers moving forward. At Proponent, you’ll join a global team committed to doing things right and supporting each other, helping keep aircraft flying and the world connected.

Supply Chain Coordinator

Job Location: Ontario, CA - Onsite

Job Summary:

The Supply Chain Coordinator supports purchasing, inventory, logistics, and supplier activities to help ensure materials and products are available when needed. This role monitors orders and inventory, communicates with suppliers and internal teams, resolves supply chain-related issues such as delays, shortages, and damaged parts, and supports efficient, cost-effective supply chain operations.

In this role, your primary responsibilities are (but not limited to):

Communicate with outside distributors, manufacturers, and transportation providers.
Process purchase orders, track deliveries, and communicate updates to internal teams.
Resolve supply chain issues such as delays, shortages, or damaged parts.
Collaborate with product line managers and the sales team to meet business objectives.

Requirements for Success:

1–3 years of experience in supply chain, logistics, purchasing, inventory, or customer service.
Experience working with ERP systems such as P21, SAP, Oracle, or similar platforms.
Strong organizational and time-management skills.
Excellent communication and negotiation abilities.
Problem-solving and analytical thinking skills.
Strong attention to detail and accuracy.
Attention to Detail – Ensures accuracy when reviewing part numbers, quantities, purchase orders, pricing, and inventory information.
Initiative – Identifies potential issues early and takes appropriate action to help minimize operational disruptions.
Continuous Improvement – Looks for opportunities to improve processes, reduce costs, and support more efficient supply chain operations.
Professionalism – Communicates and collaborates in a professional manner with internal teams and external partners.

Benefits and Perks of joining the team:

Medical, Dental, and Vision plan options
Employee Stock Ownership Plan
401k Plan
Vacation, Sick, and Holidays
Good work-life balance
WFH Hybrid available for most positions

Learn more about this Employer on their Career Site