Principal Analog/Mixed-Signal Design Engineer - Westlake Village, CA, United States

Originally posted 13 October 2026 by the employer.

Design physical layer ICs for high-speed optical fiber data communication.

About the role

This role involves developing multi-tens of GHz optical and electrical receiver and transmitter chips. You will contribute to the design and validation of FinFET CMOS and BiCMOS circuits for high-speed broadband ICs.

What you'll do

• Design active circuits in both CMOS and BiCMOS technologies.
• Design high-performance broadband analog and mixed-signal circuits for electrical and optical receiver and transmitter front ends.
• Design various analog circuits including linear regulators, AGC loops, current/voltage sensors, and bandgaps.
• Collaborate with other functional groups for post-silicon validation, qualification, transition to mass production, and customer support.

What you'll need

• BSc degree in Electrical Engineering with 10+ years of industry experience or MSc/PhD degree in Electrical Engineering with 7+ years of industry experience.
• Hands-on experience in designing analog and mixed-signal circuits including CTLEs, TIAs, ADCs, DACs, PLLs, Filters, Bandgap bias circuits, and regulators in either FinFET CMOS or SiGe BiCMOS technologies.
• Proven experience in high-performance receiver design including both chip tapeout and lab evaluation.
• Solid experience using EDA CAD tools.
• Experience performing analog custom layout.
• Experience in measuring IC performance and debugging design to correlate simulations to measurements.
• Deep understanding of detailed transistor level design, device physics, and control/feedback loop stability analysis.

Nice to have

• Direct project experience in automatic gain-control loops.
• Direct project experience in high precision analog circuits including linear regulators, current sensors, bandgaps, and DAC/ADC.
• Direct project experience in continuous-time linear equalizers.
• Experience in package-system integration issues.

Skills: FinFET CMOS, BiCMOS circuits, high-speed broadband ICs, TIAs, ADCs, DACs, PLLs