Job Title
Analog/mixed-signal IC Design Engineer - Acacia (Hybrid)
Role Summary
Join Acacia's Mixed Signal Design team to architect, design, layout, measure and productize high-speed analog/mixed-signal CMOS ICs for optical transceiver products. The team collaborates with digital/DSP, system, package and module groups to deliver production-ready transceiver ASICs.
This is a hybrid role requiring three days per week on-site in San Jose, CA.
Experience Level
Senior-level engineer. This role requires substantial prior experience in high-speed analog/mixed-signal IC design (typical hires have 8+ years of related experience).
Responsibilities
Accountabilities for the role include end-to-end IC block ownership and cross-discipline collaboration.
- Architect, design, simulate, layout and validate high-speed AMS blocks (25+ Gb/s) through production.
- Lead a large design block on complex chips; mentor junior engineers and track deliverables.
- Participate in peer reviews and enforce sound design methodology from concept to manufacturing.
- Collaborate with packaging and hardware teams to meet signal and power integrity targets.
- Develop test plans, perform lab validation and support characterization over process, voltage, temperature.
- Work closely with digital/DSP, system and module teams to integrate mixed-signal blocks into products.
Requirements
Core technical requirements and preferred skills.
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Must-have: Experience designing, simulating and measuring high-speed ICs, with proficiency in at least three of the following areas: high-speed serial links (serdes, ADC/DAC), system link modeling, high-performance output drivers, phase-locked loops, clock distribution, op amps/programmable gain amplifiers, or equalization techniques.
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Must-have: Hands-on experience with analog/MMIC layout and high-frequency floorplanning (power/ground, analog/digital segregation, signal routing).
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Nice-to-have: Experience with FinFET or GAA technologies and design-for-manufacturability practices including PVT characterization, electromigration, self-heating and IR drop analysis.
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Nice-to-have: Laboratory validation experience, ESD practices, and building complex test setups.
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Nice-to-have: Familiarity with Cadence Virtuoso, Spectre/APS/SpectreX, Calibre, EMX, AMS mixed-signal simulation flows and Matlab.
Education Requirements
Minimum qualifications specify one of: Bachelor's degree plus 8 years related experience, Master's degree plus 6 years related experience, or PhD plus 3 years related experience.
About the Company
Company: Cisco Systems
Headquarters: San Jose, CA, United States
Cisco Systems is a global technology company that designs and sells networking hardware, telecommunications equipment, software, and services. It provides enterprise and service-provider networking, security, collaboration, and optical communications solutions (including Acacia Communications technologies for high-speed optical interconnects).

Date Posted: 2026-06-08