Site Reliability Engineer IonQ · Santa Clara · Site Reliability –ago

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.

This role is based at our Santa Clara, CA office, with the option to work a few days a week remotely.

Up to 25%

1874

The Platform Engineering team builds, secures, and operates scalable infrastructure for cloud-managed SaaS products with on-premises components deployed at customer sites. The Site Reliability Engineering discipline keeps the platform stable and reliable, with a strong focus on service continuity and customer experience. It owns production reliability, service-level objectives, observability architecture, backup and disaster recovery, incident response, and resilience, and co-owns cloud security posture and runtime vulnerability management with Dev Sec Ops .

• Production reliability — own service-level objectives, error budgets, and production reliability outcomes end to end, and represent reliability in architecture and scaling decisions.
• Engineer observability — design and operate the observability stack so production services are fully instrumented and define the standards platform and application teams follow.
• Govern SLOs and error budgets — define and manage service-level objectives, run regular reviews with service owners, and drive corrective action when services consume error budgets unsafely.
• Drive resilience — design and execute chaos experiments and validate that failure modes are covered by tested safeguards.
• Lead incident response — define the incident process and serve as incident commander for the highest-severity incidents, including security incidents within the coverage window.
• Run on-call and escalation — establish and manage rotations and escalation paths that provide continuous coverage with clean follow-the-sun handoffs.
• Disaster recovery — own disaster-recovery testing and failover validation against defined recovery objectives and turn exercise findings into architectural and operational improvements.
• Cloud security posture — co-own cloud security posture management, runtime vulnerability detection, and configuration-compliance monitoring with Dev Sec Ops .
• Data, streaming, and AI Ops — own reliability of stateful and streaming services, capacity planning and rightsizing, and autonomous agents for triage, predictive alerting, remediation, and self-healing.
• Scale the team and broaden impact - mentor engineers at different seniority levels, set standards adopted across teams, and align Architecture, Dev Sec Ops , Cloud Operations, and Product Development behind a shared reliability roadmap.

• 7+ years of production engineering experience with recent hands-on reliability work.
• Hands-on, recent experience…