Staff Platform Engineer

Oxford Ionics; Oxford; On-site; GBP 90,000 - 130,000; Full time

Benefits offered by this job

IonQ stock options

Annual performance bonus

Private medical & dental insurance

Generous annual leave

Flexible hybrid working

Job summary

Oxford Ionics, now part of IonQ, is building the next generation of quantum systems with a focus on secure, observable infrastructure. We seek a Staff Platform Engineer to join the Quantum System Infrastructure team in Oxford, driving platform strategy across on-site and cloud environments.

You will lead central platform initiatives, accelerate CI/CD, and ensure robust deployment and rollback capabilities for rapid delivery to customers.

Qualifications

• 5+ years in a Platform, DevOps or Site Reliability role.
• Experience running Linux in production.
• Infrastructure as code with Terraform or OpenTofu.
• Running containerised workloads on Kubernetes in production.
• Building and speeding up CI/CD pipelines with GitHub Actions.

Responsibilities

• Run and evolve the Kubernetes platform behind quantum systems and the release process.
• Make CI faster and more reliable for all engineers.
• Make systems observable with dashboards and alerts as code.
• Provide ready-to-use remote development environments on-site or in the cloud.
• Keep infrastructure secure, recoverable and reproducible as code.
• Lead technical decisions and write runbooks to enable self-service changes.

Skills

5+ years in Platform/DevOps/SRE

Linux in production

Problem diagnosis

Leadership

Education

Bachelor's degree in a relevant field

Tools

Terraform

OpenTofu

Kubernetes

GitHub Actions

Grafana/OpenTelemetry

CI/CD tooling

Job description

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 Staff Platform Engineer to join the Quantum System Infrastructure team at IonQ, based in our Oxford office. In this role, you will be responsible for the platform that our engineering and science teams use to build, test and deliver quantum systems to customers, contributing to the team's mission of applying DevSecOps principles to deliver reliable, secure and observable infrastructure, on‑site and in the cloud.

What you'll be responsible for:

In this position, you will build and run the infrastructure behind our quantum systems, on‑site and in the cloud, so the teams who build them can ship changes quickly and safely. You'll have the opportunity to shorten the time from a code change to a running quantum system, contributing directly to the delivery of quantum systems to our customers. As a senior member of the team, you will take on central roles in strategic projects for the Platform team, and will lead on defining, driving and implementing them.

You’ll work with a wide range of partners and internal customers across IonQ's locations: physicists, lab technicians, firmware and software engineers, IT, product management and production SRE. You’ll talk to them, see where they get stuck and fix the cause.

Key responsibilities include:

• Run and evolve the Kubernetes platform behind each quantum system, and the release process that promotes software onto it (k3s, ArgoCD, Helm)
• Make CI faster and more reliable for every engineer, including our scarce hardware‑in‑the‑loop and FPGA build runners and build caches (GitHub Actions)
• Make our systems observable: define dashboards and alerts as code for quantum system hardware such as lasers, cryogenics and vacuum, and move them onto IonQ's shared observability platform with our production Site Reliability Engineering (SRE) colleagues (Grafana, OpenTelemetry)
• Give every engineer and physicist a ready‑to‑use remote development environment, on‑site or in the cloud, that works with our quantum system hardware
• Keep our on‑site and cloud infrastructure secure, recoverable, reproducible and reviewable as code (OpenTofu, Atmos), from secrets and access to certificates and identity, and work with IonQ's infrastructure team on shared cloud services
• Lead technical decisions and write the runbooks and guides that let other teams change the platform safely themselves

What you’ll need:

To be successful, you will need hands‑on experience running Linux infrastructure in production, ideally both on-premises and in the cloud, with infrastructure as code, Kubernetes and CI/CD. We're looking for someone who can diagnose problems across the whole stack, from a storage fault to a failing pipeline to a development environment that will not start, who treats observability and security as part of the job rather than an afterthought, and who can lead a piece of work from design to rollout within a fast‑moving, highly technical team. You will write mostly Python, shell and OpenTofu. Our product code is Rust and Python: your job will be to make it build and test faster rather than write it.

Our platform spans our on‑site quantum systems, and many changes reach live quantum systems. Every change goes through review and automated validation before it is applied, so we value people who plan for rollback, test against the real system and write down what they learn. Experience with AI coding tools is helpful, as is an interest in quantum computing though prior experience is not required.

You’d be a great fit with:

• 5+ years in a Platform, DevOps or Site Reliability role, running Linux systems in production
• Infrastructure as code with Terraform or OpenTofu
• Running containerised workloads on Kubernetes in production
• Building and speeding up CI/CD pipelines, ideally in GitHub Actions
• Observability and security for production systems: monitoring, alerting, secrets and access control

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.