Senior/Principal Analog & Mixed Signal Design Engineers

The role

This person will design high-performance SerDes circuits for optical links in advanced CMOS nodes. The role involves ownership of analog mixed-signal building blocks from architectural definition through silicon validation.

What you will do

• Architect and design high-speed analog and mixed-signal circuits
• Design high-speed SerDes transmit/receive circuits
• Design clocking and timing circuits
• Design transmit drivers, TIAs, receiver front-ends, and equalization circuits
• Design biasing networks, bandgaps, and on-chip power regulation
• Perform transistor-level design, simulation, and optimization across PVT corners
• Analyze and optimize bandwidth, noise, linearity, jitter, stability, and power
• Work with layout engineers on floorplanning, matching, isolation, and parasitic management
• Define and support silicon bring-up, characterization, and debug
• Contribute to design methodology, IP reuse, and best practices

Required qualifications

• MS or PhD in Electrical Engineering or related field
• 7+ years of hands-on analog or mixed-signal IC design experience
• Strong fundamentals in feedback and stability analysis
• Strong fundamentals in noise and jitter modeling
• Strong fundamentals in high-speed analog, SerDes, or mm-wave circuit design
• Strong fundamentals in power integrity and substrate isolation
• Experience taking Driver, TIA, or other data-path AMS blocks through tape-out and lab validation
• Proficiency with industry-standard analog design and simulation tools

Nice to have

• Advanced/scaled CMOS process nodes
• High-speed SerDes experience (112G/224G/448G PAM4 and/or NRZ) or closely related I/O-adjacent analog circuits
• Experience with process scaling and technology trade-offs
• Exposure to co-packaged optics (CPO), on-board optics, or pluggable optical module integration
• Exposure to silicon debug, failure analysis, and yield learning

Benefits

• Competitive salary
• Significant equity compensation
• Comprehensive health, dental, and vision insurance
• Flexible time off policy

About the company

Lumilens is building photonics infrastructure for AI supercomputing, including chip-to-chip optical interconnects and scalable photonic engines. It is a well-funded startup backed by Mayfield and others.