RF & Microwave Electronics Engineer for Quantum Sensing

QuSpectra; San Diego (CA); On-site; USD 85,000 - 95,000; Full time

Benefits offered by this job

Early-stage equity

Job summary

QuSpectra, a San Diego-based startup, is seeking an RF/Electronics Engineer to design the mixed-signal and microwave hardware behind our quantum control/readout chain, including microwave delivery, low-noise front ends, and precise timing in a compact form factor.

The role partners with FPGA/firmware and requires hands-on bench work and board characterization (VNA, spectrum analyzer, oscilloscope) to ensure high-performance, scalable hardware for NV spin control.

Qualifications

• BS/MS in Electrical Engineering, Physics, or equivalent; 3+ years hardware design.
• Experience designing and debugging RF/microwave circuits with impedance matching and S-parameters.
• Strong analog design: low-noise amps, TIAs, precision references; noise budgets.
• Multilayer PCB design in KiCad for mixed-signal systems; controlled-impedance routing.
• Bench on VNA, spectrum analyzer, oscilloscope; debugging full signal chains.

Responsibilities

• Design and bring up microwave delivery hardware for NV spin control and over-the-air readout.
• Develop low-noise analog front ends and gain/ filter stages.
• Build precision current drivers for bias coils and DAC/ADC infra.
• Create multilayer KiCad layouts with RF/mixed-signal integration and EMI discipline.
• Collaborate with FPGA/firmware teams; characterize boards on bench equipment.

Skills

RF/microwave design

Impedance matching

S-parameters

Analog design

Low-noise amplification

TIAs

Precision references

Noise budgets

Multilayer PCB design

KiCad

Controlled-impedance routing

Bench testing

Education

BS/MS in Electrical Engineering, Physics, or equivalent

Tools

KiCad

VNA

Spectrum Analyzer

Oscilloscope

Job description

QuSpectra, a San Diego-based startup, is seeking an RF/Electronics Engineer to design the mixed-signal and microwave hardware behind our quantum control/readout chain, including microwave delivery, low-noise front ends, and precise timing in a compact form factor.

The role partners with FPGA/firmware and requires hands-on bench work and board characterization (VNA, spectrum analyzer, oscilloscope) to ensure high-performance, scalable hardware for NV spin control.