Cryo RFIC Design Engineer, Quantum - United States

Originally posted 28 September 2026 by the employer.

Develop high-performance RF and microwave integrated circuits for cryogenic CMOS and quantum systems.

About the role

This role develops high-performance RF and microwave integrated circuits and reusable IP for advanced semiconductor applications, including cryogenic CMOS and quantum systems.

What you'll do

• Design and develop RF and microwave integrated circuits including low-noise amplifiers, VCOs, and frequency synthesizers.
• Own RFIC development from architecture through schematic simulation, electromagnetic-aware layout, tapeout, and silicon characterization.
• Perform comprehensive RF circuit analysis across process, voltage, and temperature, including S-parameters, noise figure, gain, linearity, and phase noise.
• Drive electromagnetic simulation and modeling of RF passive structures, interconnects, transmission lines, and inductors.
• Optimize RF circuit performance for power, bandwidth, noise, linearity, area, and operating temperature, including cryogenic conditions.
• Define RF silicon test structures, analyze measured data, and correlate hardware results with circuit and electromagnetic simulations.

What you'll need

• Bachelor’s degree in Electrical Engineering, Microelectronics, or Applied Physics.
• Minimum 5 years of relevant RF, microwave, or analog integrated circuit design experience.
• Demonstrated experience taking RF or microwave integrated circuits through schematic design, simulation, layout, DRC/LVS, parasitic extraction, tapeout, and silicon validation.
• Strong knowledge of RF design fundamentals including impedance matching, S-parameters, stability, noise, linearity, and phase noise.
• Proficiency with industry-standard RFIC design, circuit simulation, electromagnetic simulation, layout, physical verification, and post-layout extraction environments.
• Experience with RF measurement concepts and test equipment such as vector network analyzers and spectrum analyzers.

Nice to have

• Master’s degree or PhD in Electrical Engineering, Microelectronics, or RF/Microwave Engineering.
• Experience with cryogenic RFICs, quantum readout/control electronics, or millimeter-wave circuits.
• Familiarity with CMOS device and passive-component behavior and interconnect effects at RF, microwave, or cryogenic operating conditions.
• Experience designing advanced RF blocks such as LNAs, PAs, mixers, VCOs, PLLs/frequency synthesizers, RF switches, or integrated matching networks.
• Experience with on-wafer RF characterization and correlation of measured results to circuit, device, EM, and package models.
• Familiarity with design or characterization automation using Python, SKILL, Tcl, or MATLAB scripting environments.

Skills: RF and microwave integrated circuits, low-noise amplifiers, VCOs, frequency synthesizers, S-parameters