Senior Analog/Mixed-Signal IC Design Engineer

Job Title

Senior Analog/Mixed-Signal IC Design Engineer

Role Summary

Senior IC designer responsible for analog and mixed-signal CMOS blocks used with silicon quantum processors, including circuits intended for deep-cryogenic operation. The role sits on the IC team and works closely with layout, validation, RF IC design and quantum physics groups.

This is an early-stage, hands-on engineering role at a fast-growing quantum computing company focused on scalable silicon-based processors.

Experience Level

Senior. (Job title indicates senior level; no explicit years-of-experience specified.)

Responsibilities

Deliver and support design, verification and post-silicon validation of analog and mixed-signal ICs.

• Design and verify continuous-time and discrete-time circuits (amplifiers, filters, high-accuracy/high-performance data converters) in CMOS.
• Design and optimise circuits for operation at deep-cryogenic temperatures.
• Work with layout engineers on analog and mixed-signal block layout and design strategy.
• Support post-silicon bring-up, setup and debugging to evaluate IC performance.
• Collaborate with RF IC design, IC validation and quantum physics teams to meet project goals.
• Document designs and present work in design reviews.

Requirements

Must-have technical skills and experience followed by desirable skills.

• Must-have: Solid understanding of analog and mixed-signal CMOS IC design.
• Silicon-proven experience designing analog integrated circuits.
• Familiarity with switched-capacitor circuits and data converter design in CMOS.
• Experience with layout considerations and design-for-layout strategy.
• Proficient with design and verification CAD tools.
• Strong analytical and problem-solving skills; self-motivated and able to work independently.
• Nice-to-have: ADC/DAC design for high-frequency, high-performance or low-power applications; clock generation/PLL design; knowledge of CMOS fabrication technology; cryogenic CMOS design experience; Verilog/Verilog-A/Verilog-AMS; MATLAB; DSP and communications systems knowledge.

Education Requirements

Not specified.

About the Company

Company: Quantum Motion Technologies

Headquarters: London, United Kingdom

Quantum Motion Technologies develops silicon-based quantum processors and supporting cryogenic ICs, combining quantum physics and integrated circuit engineering to build scalable quantum computers. The London- and Oxford-based startup focuses on hardware, cryogenic testing, and interdisciplinary R&D for quantum computing applications.