IonQ

Build highly available backend services for IonQ’s Cloud Platform, enabling customers to submit, process, and retrieve results from quantum jobs. You’ll shape APIs and asynchronous job-processing systems while mentoring engineers and driving technical alignment.

IonQ is seeking a Principal Software Architect to lead the architecture of software enabling quantum computers, from real-time hardware control through developer programming interfaces. The role shapes scalable system software across current and future quantum products while coaching technical leads and coordinating cross-functional architecture work.

Senior Software Engineer focused on building test infrastructure and system-level automation for IonQ’s quantum computing platforms. The role combines CI engineering, hardware-in-the-loop testing, fleet management, and cross-functional debugging across software, hardware, and physics teams.

IonQ is seeking a Staff Platform Engineer to build and operate the infrastructure, Kubernetes platforms, CI pipelines, observability, and remote development environments supporting its quantum systems. The role combines on-site and cloud infrastructure work with technical leadership across engineering and science teams.

Build and operate non-realtime device controllers for the hardware surrounding IonQ’s quantum computers, from low-level protocols through reliable fleet-wide services. This hybrid Oxford role offers hands-on work across software, systems, hardware, and quantum science.

Join IonQ’s System Orchestration team as a hands-on Staff Software Engineer building the control plane that schedules, calibrates, operates, and records workloads across a fleet of trapped-ion quantum computers. You’ll solve deep reliability, durability, recovery, and distributed-systems problems in software that keeps quantum machines productive around the clock.

Build the orchestration control plane that schedules quantum workloads, manages calibration, and records activity across IonQ’s fleet of trapped-ion quantum computers. You’ll own backend services end to end, from APIs and persistence through deployment on real machines.

Build and operate the orchestration software that schedules, controls, calibrates, and records workloads across IonQ’s trapped-ion quantum computers. This hands-on senior role focuses on reliable stateful services, production operations, and keeping quantum systems running continuously.