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IonQ is the world's leading quantum platform and merchant supplier, delivering integrated quantum solutions across computing, networking, sensing, and security. The company operates globally with headquarters in College Park, Maryland, and offices across North America, Europe, and Asia.
We are seeking a Senior Front-End Engineer to join our Quantum Tools software team in Oxford. You will be responsible for designing, developing, and supporting web-based tools for scientific research and hardware integration used by our quantum scientists and engineers. Your work will directly enable IonQ's research and development goals and shape best-in-class UX/UI that sets the standard across the organization.
In this role, you will build a variety of tools including information-dense dashboards, system telemetry interfaces, and calibration tools. You'll work on creating interfaces capable of managing complex states in data-intensive application environments, supporting the delivery of quantum tooling for next-generation platforms. You'll have the opportunity to deepen your understanding of complex systems, design features end-to-end that directly impact users, and contribute directly to project success.
Key responsibilities include:
- Developing scientific software and hardware control interfaces for cross-functional teams
- Adhering to and setting strict testing discipline
- Liaising with users from diverse backgrounds to gather requirements and understand workflows
- Designing and implementing web-based tooling
- Working within the wider quantum tools and software team to embed best practices and stronger processes
You will work hybrid, with a minimum of two days per week on-site in Oxford.
REQUIREMENTS:
- Prior experience in front-end development with Typescript, HTML, CSS, and React
- Ability to work across teams, translate abstract workflows into concrete graphical tools, and collaborate effectively with backend engineers in a fast-moving, highly technical environment
- Deep experience in a modern framework such as React, Vue, Svelte, or Solid
- Experience building interfaces around streaming data, including handling frequent updates, subscriptions, connection failures, and clear system-status feedback
- Experience building interactive charts and working with large datasets
- Ability to diagnose rendering bottlenecks and reason about plot update frequency, virtualization, and SVG, Canvas, and WebGL trade-offs
- Sound interaction and visual design judgment for information-dense operator tools, including information hierarchy, accessibility, and keyboard workflows
