Senior Electronics Engineer

ionq; Oxford; Hybrid; GBP 90,000 - 120,000; Full time

Job summary

IonQ in Oxford, UK is seeking a Senior Electronics Engineer to join the Reliability Engineering team. You will own root-causing and permanently resolving electronics and control hardware issues on our operational trapped-ion quantum computers, contributing to fleet uptime and reduced operating costs.

You’ll lead the full lifecycle of electrical reliability fixes—from identifying bottlenecks to standardizing the resulting solution across future builds—working closely with Operations, Science,

Qualifications

• Experience in electronics reliability and control hardware.
• Ability to diagnose root causes and implement robust fixes.

Responsibilities

• Root-cause, design, and deploy electronics system fixes across the quantum computer fleet.
• Drive system upgrades, standardize control, and propagate fixes to future builds.
• Build observability to detect problems before downtime and improve fleet uptime.

Skills

Electronics design

Root cause analysis

Reliability engineering

Hardware debugging

Job description

About IonQ:

IonQ, Inc . [NYSE: IONQ] is the world's leading quantum platform and merchant supplier - delivering integrated quantum solutions across computing, networking, sensing, and security. IonQ's newest generation of quantum computers, the IonQ Tempo, is the latest in a line of cutting-edge systems that have been helping customers and partners including Amazon Web Services, and AstraZeneca achieve 20x performance results and accelerate innovation in drug discovery, materials science, financial modeling, logistics, cybersecurity, and defense. In 2025, the company achieved 99.99% two-qubit gate fidelity, setting a world record in quantum computing performance .

Headquartered in College Park, Maryland, IonQ has operations in California, Colorado, Massachusetts, Tennessee, Washington, Italy, South Korea, Sweden, Switzerland, Canada, and the United Kingdom. Our quantum computing services are available through all major cloud providers, while we also meet the needs of networking and sensing customers across land, sea, air, and space. IonQ is making quantum platforms more accessible and impactful than ever before.

Location:

Our office is located in Oxford, England (UK), with hybrid working

Job ID:

1820

The Role:

We are looking for a Senior Electronics Engineer to join our Reliability Engineering team at IonQ. In this role, you will be responsible for finding, root-causing, and permanently resolving electronics and control hardware issues on our operational trapped-ion quantum computers, contributing to the team's mission of improving fleet uptime and driving down the operational cost of our commercial and development systems.

You’ll play an important part in owning the full lifecycle of electrical reliability fixes - from identifying a real-world bottleneck through to standardizing the resulting fix into every future build - working closely with Operations, Science, Manufacturing, and Engineering to keep our quantum systems running reliably and effectively.

Responsibilities :

In this position, you will work on root-causing, designing, and deploying electronics system design fixes across our fleet of quantum systems, supporting the effective delivery of reliable, development and production hardware . You’ll have the opportunity to drive system upgrades, standardize control and drive electronics across systems, and build the observability that catches problems before they cause downtime