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full-timeSenior Staff Analog Mixed-signal Design And Modelling Engineer
Ionq · Oxford
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: This role is based at our Oxford, England (UK) office, with the option to work a few days a week remotely. Travel: Up to 5% Job ID: 1765 Role: We are looking for a Staff Analog Mixed-Signal Design and Verification Engineer to join our Cryo-CMOS IC team at IonQ Oxford. In this role, you will design analog and mixed-signal blocks from specification through circuit design, simulation, layout, tape-out and silicon validation. You will also own top-level chip integration and modelling as a first-class part of our Cryo-CMOS development flow. In this you will build and maintain the model of the chip that the whole team simulates against, a mixed-abstraction model combining transistor-level circuits with Verilog-A/Verilog-AMS and SystemVerilog real-number behavioural blocks. You will decide which blocks are represented at which level of abstraction, keep the models faithful to the schematics and measured silicon. The full-chip model will then be used to verify the ASICs that control the quantum processor from room temperature down to a few kelvin. You'll play an important part in shaping the design, modelling and verification methodology, standards and sign-off criteria that support our work in building the world's most advanced quantum systems. Responsibilities:
| Role | Senior Staff Analog Mixed-signal Design And Modelling Engineer |
|---|---|
| Company | Ionq |
| Location | Oxford |
| Type | full-time |
| Compensation | Not disclosed |
| Deadline | Rolling |
Typical process for this type of role
A general guide — the exact steps for this specific listing may vary; check the original posting for details.
- 1ApplicationSubmit your resume through the apply link.
- 2ScreeningRecruiter reviews your background against the role.
- 3AssessmentA technical test, assignment, or coding round, depending on the role.
- 4Interview(s)One or more rounds with the hiring team.
- 5OfferOffer letter with compensation and start date.
Before you apply
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