Senior Front-End Engineer - Quantum Tools

Quantum is now, and it's built here. Oxford Ionics, now part of IonQ, is pioneering the next generation of quantum computing. Using our world-leading trapped-ion technology, we’re building the most powerful, accurate and reliable quantum systems to tackle problems that today’s supercomputers cannot solve. Joining Oxford Ionics means becoming part of a global IonQ team that is transforming the future of quantum technology - faster, at scale, and with real world impact. IonQ, Inc. [NYSE: IONQ] is the world’s leading quantum company delivering solutions to solve the world’s most complex problems. IonQ’s newest generation quantum computers, IonQ Tempo and IonQ Forte Enterprise, are the latest in cutting-edge systems that have been helping customers and partners such as Amazon Web Services, AstraZeneca, and NVIDIA achieve 20x performance results. The company achieved 99.99% two-qubit gate fidelity, setting a world record in quantum computing performance in 2025. The company is accelerating its technology roadmap and intends to deliver the world’s most powerful quantum computers with 2 million qubits by 2030 to accelerate innovation in drug discovery, materials science, financial modeling, logistics, cybersecurity, and defense. IonQ’s advancements in quantum networking position the company as a leader in building the quantum internet. What to expect: We are looking for a Senior Front-End Engineer to join our Quantum Tools software team at IonQ. In this role, you will be responsible for designing, developing and supporting web based tools for scientific research and hardware integration for use by our teams of quantum scientists and engineers to enable their work on our research and development goals as an organisation. Your role will be to shape best in class UX/UI that sets the standard across IonQ. This will directly contribute to our core mission of building, operating and supporting the world's most powerful quantum computers. What you'll be responsible for: In this position, you will work on building a number of different tools for our teams, including information dense dashboard, system telemetry and calibration, amongst others. You will need to create tools capable of managing complex states in a data intensive application environment, supporting the effective delivery of quantum tooling for the next gen platforms. You’ll have the opportunity to deepen your understanding of complex systems, design features end to end that directly impact users, contributing directly to the success of the project. Key responsibilities include: Working on developing scientific software and hardware control interfaces for use by teams across IonQ.Adhering to and setting strict testing discipline.Liaising with users from a range of cross-functional backgrounds to gather requirements for tools and gain a better understanding of workflows.Designing and implementing web based tooling.Work as part of the wider quantum tools and software team to embed best practice and stronger processes. What you'll need: To be successful in this role, you will require prior experience in front-end development, including working with Typescript, HTML, CSS and React. We are looking for someone who can work across teams, turn abstract workflow into a concrete graphical tool working closely with backend engineers and contribute effectively within a fast moving, highly technical team. You’d be a great fit with: 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.The ability to diagnose rendering bottlenecks and reason about plot update frequency, virtualisation, and SVG, Canvas and WebGL trade-offs.Sound interaction and visual design judgement for information-dense operator tools, including information hierarchy, accessibility and keyboard workflows. So why us? Be part of a team that’s shaping the future of quantum. We offer more than just a role, you’ll join a world class community of scientists, engineers and innovators working to unlock the full potential of quantum computing. We offer a range of benefits, including opportunities to further your career alongside industry leaders, a competitive salary with IonQ stock options, an annual performance bonus, generous annual leave, flexible hybrid working, private medical and dental insurance for you and your family, and much more. Join us and be part of the future of quantum computing. We’re proud to be an equal opportunity employer and welcome applicants from all backgrounds.