Senior Photonics Test Engineer

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 Senior Photonics Test Engineer to join our Quantum Interconnect Division. As a Senior Photonics Test Engineer, 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 be responsible for the characterization and test development of on-chip photonic devices. The ideal candidate is someone who is a detail-oriented problem solver with strong teamwork skills.

• Design, upgrade, and expand the testing infrastructure for characterizing classical integrated photonics devices and components (passive and active) at chip and wafer level scale, utilizing both room-temperature and cryogenic setups.

• Develop and perform robust testing procedures for component-level