Cryo-CMOS Analog/Mixed-Signal IC Design & Modelling

Physics World; Oxford; Hybrid; GBP 110,000 - 150,000; Full time

Benefits offered by this job

Medical, dental, and vision plans

401(k) matching

Unlimited PTO

Paid holidays

Parental/adoption leave

Legal insurance

Home technology stipend

Job summary

IonQ Oxford seeks a Staff Analog Mixed-Signal Design and Verification Engineer to design analog blocks and own the full-chip model from specification to silicon validation. You will lead mixed-signal simulations (Cadence AMS, Xcelium) and drive model accuracy across the Cryo‑CMOS development flow.

You will build Verilog-A/AMS models, define abstraction levels, and ensure the model matches schematic and measured silicon while mentoring engineers in circuit design and modelling craft.

Qualifications

• 10+ years of deep analog and mixed-signal design experience.
• Proven silicon blocks, models and production tape-out experience.
• Expert transistor-level design of precision analog blocks.

Responsibilities

• Own full-chip modelling strategy and sign-off criteria.
• Own analog/mixed-signal blocks from spec through schematic design.
• Manage top-level integration and full-chip simulations for verification.
• Develop real-number models for fast digital verification.
• Derive models from equations and validate against silicon.

Skills

Analog/mixed-signal design

Verilog-A/Verilog-AMS

SystemVerilog

Mathematical modelling

Cadence AMS Designer

Xcelium

Spectre

Python

MATLAB

Tools

Cadence AMS Designer

Xcelium

Spectre

Virtuoso

Job description

IonQ Oxford seeks a Staff Analog Mixed-Signal Design and Verification Engineer to design analog blocks and own the full-chip model from specification to silicon validation. You will lead mixed-signal simulations (Cadence AMS, Xcelium) and drive model accuracy across the Cryo‑CMOS development flow.

You will build Verilog-A/AMS models, define abstraction levels, and ensure the model matches schematic and measured silicon while mentoring engineers in circuit design and modelling craft.