Job Title
Analog/mixed-signal IC Design Engineer - Acacia
Role Summary
Member of the Mixed Signal Design team for Acacia developing high-speed analog/mixed-signal ASICs for optical transceivers (100Gβ1.6T+). Work covers architecture, design, layout, measurement and productization of ultra-deep-submicron CMOS analog blocks integrated into complex chips.
This is a hybrid role based in the San Jose, CA office (three days per week). Posted US starting salary range: $168,800β$241,200 (base).
Experience Level
Senior level. Position requires substantial IC design experience consistent with the stated minimum qualifications (see Education Requirements for degree/years guidance).
Responsibilities
The role leads design efforts for complex analog/mixed-signal blocks and ensures production-ready deliverables.
- Architect, design, simulate, layout, verify and productize high-speed AMS CMOS blocks.
- Lead a large block on a complex chip, manage deliverables and timelines.
- Mentor and review work of other engineers; participate in peer design reviews.
- Collaborate with digital/DSP, system, package and module teams to meet system-level requirements.
- Ensure signal and power integrity through collaboration with packaging and hardware teams.
- Develop test plans and perform lab measurements and validation of ICs.
- Contribute to design methodology from conception through production and qualification.
Requirements
Key technical skills and experience required or strongly preferred.
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Must-have: Proven experience designing, simulating and measuring high-speed ICs. Demonstrable expertise in at least three areas such as SERDES (serial links, serializers/deserializers, data converters), high-performance output drivers, PLLs, clock transmission/propagation, op amps/programmable gain amplifiers, or equalization techniques.
- Hands-on experience with mixed-signal design and lab validation, including test setup construction and measurement methodology.
- Familiarity with industry tools and flows: Cadence Virtuoso, Spectre/SpectreX/APS, AMS simulators, Virtuoso/Calibre layout validation, EMX, and Matlab.
- High-frequency layout experience and attention to signal/power routing and floorplanning for mixed-signal designs.
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Nice-to-have: Experience with FinFET or GAA technologies, transceiver applications (backplane/cable), design-for-manufacturability (PVT characterization, electromigration, self-heating, IR drop), ESD practices, and RF/passive component layout (inductors, transformers, transmission lines).
Education Requirements
Minimum qualification as stated: Bachelor's degree plus 8 years related experience, Master's degree plus 6 years related experience, or PhD plus 3 years related experience. The posting does not specify required fields of study or mention equivalent-experience language beyond the degree-plus-experience combinations.
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: 2026-07-31