IT Infrastructure Engineer

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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.

We’re searching for an IT Infrastructure Engineer to join our IT team. This role offers the opportunity to manage and improve a wide range of IT systems and networks, ensuring seamless operations across the company. You’ll play a key part in maintaining critical infrastructure, solving complex technical issues, and enabling the team to deliver cutting‑edge quantum technology. This is a unique chance to contribute to the scalability and success of a world‑leading quantum computing company.

You’ll play an important role in managing and maintaining our IT systems and network infrastructure, ensuring seamless operations and robust support for our quantum technology. Your responsibilities will include:

• Resolving complex technical issues, including troubleshooting and fault finding across a variety of systems and hardware.
• Managing system administration, including user accounts, permissions, and policies across platforms such as Google Workspace, Microsoft Entra , Active Directory, and Microsoft 365.
• Setting up and maintaining user accounts, devices, and hardware such as network switches, firewalls, and servers.
• Monitoring and troubleshooting network services like VPN connectivity, routing, and vLANs, while ensuring compliance with security policies.

You’ll also configure security settings, proactively manage backups, and repair or replace infrastructure equipment to maintain optimal performance.

You’ll need strong technical expertise and hands‑on experience with a wide range of IT systems and tools. Key areas of knowledge include:

• Google Workspace Suite, Microsoft Entra , and Microsoft Azure.
• Networking protocols such as TCP/IP, DNS, DHCP, and vLANs.
• VMware, Veeam Backup & Replication, and Power Shell scripting for automation.

Familiarity with Linux systems (e.g., Ubuntu, Rocky) and hardware such as Dell Power Edge Servers is also highly desirable. You should be proactive in problem‑solving, detail‑oriented, and comfortable collaborating with team members across the business. Your ability to manage system administration, troubleshoot technical issues, and maintain security compliance will be critical to ensuring the smooth operation of our IT infrastructure.

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.