Senior Buyer Planner

IonQ, Inc. [NYSE: IONQ] is the world’s leading quantum platform and merchant supplier - delivering integrated quantum solutions across computing, networking, sensing, and security. IonQ’s newest generation of quantum computers, the IonQ Tempo, is the latest in a line of cutting-edge systems that have been helping customers and partners including Amazon Web Services, and AstraZeneca achieve 20x performance results and accelerate innovation in drug discovery, materials science, financial modeling, logistics, cybersecurity, and defense. In 2025, the company achieved 99.99% two-qubit gate fidelity, setting a world record in quantum computing performance.

Headquartered in College Park, Maryland, IonQ has operations in California, Colorado, Massachusetts, Tennessee, Washington, Italy, South Korea, Sweden, Switzerland, Canada, and the United Kingdom. Our quantum computing services are available through all major cloud providers, while we also meet the needs of networking and sensing customers across land, sea, air, and space. IonQ is making quantum platforms more accessible and impactful than ever before.

We are looking for a Buyer Planner to join our Supply Chain team. As a Buyer Planner, you'll be part of a cross-functional team whose mission is to lead IonQ on its journey to build the world's best quantum computers to solve the world's most complex problems.

In this role, you will own the buy side of the material plan — converting demand into purchase orders, holding vendors to committed dates, and keeping the supply picture in the ERP accurate enough that the rest of the organization can plan against it. You are the connection point between what the factory needs and what the supply base has actually agreed to deliver.

This is a high-volume, high-judgment execution role. Lead times are long, demand shifts, and a large share of what you buy is custom or single-source. The ideal candidate is someone who works a queue with discipline, chases