Principal RF IC Design Engineer — Cryogenic CMOS

Quantum Motion; Greater London; Hybrid; GBP 110,000 - 170,000; Full time

Benefits offered by this job

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Pension scheme

Private medical insurance

Life assurance

Cycle-to-work

Flexible working

Central London location

Job summary

Quantum Motion, a London-based quantum computing startup, seeks a senior RF IC designer to deliver CMOS RF circuits for deep-cryogenic operation. You will work in a cutting-edge IC design team focusing on RF blocks interfacing with quantum devices and validate designs post-silicon.

Applicants should bring extensive CMOS RF experience, Cadence/SpectreRF expertise, and a strong analytical mindset. The role offers opportunities for growth within a world‑leading silicon quantum program in Central

Qualifications

• Experience in heavy research-oriented environments.
• Demonstrated CMOS RF IC design experience at sub-10GHz for low power systems.
• Industry degree qualification and long work experience in RF IC design.

Responsibilities

• Architecture-level design of low power Tx chain.
• Block-level schematic design of RF blocks (LNA, PLL, LO, Mixer, VGA, Filters).
• Guide layout of designed blocks and review layout work.
• Document work for peer-review and perform design reviews.
• Support post-silicon validation and characterization of RF blocks.

Skills

CMOS RF IC design

Low power design

Analytical problem-solving

Communication skills

Education

Engineering degree (BEng/MEng) in RF/EE

Tools

Cadence Virtuoso / SpectreRF

EM tools (ADS/HFSS)

Python

Job description

Quantum Motion, a London-based quantum computing startup, seeks a senior RF IC designer to deliver CMOS RF circuits for deep-cryogenic operation. You will work in a cutting-edge IC design team focusing on RF blocks interfacing with quantum devices and validate designs post-silicon.

Applicants should bring extensive CMOS RF experience, Cadence/SpectreRF expertise, and a strong analytical mindset. The role offers opportunities for growth within a world‑leading silicon quantum program in Central