# High Speed AMS Design Engineer

**Company**: Cisco
**Experience**: senior
**Job type**: full-time
**Category**: Engineering
**Industry**: Technology

**Apply**: https://cisco.wd5.myworkdayjobs.com/en-US/Cisco_Careers/job/Bangalore-India/XMLNAME-2013158-ASIC-Engineering-Analog-Design-Leader---high-speed-optical-transceiver-circuits--modulator-drivers--TIAs--CDRs--PLLs--ADC-DAC----10--years_2025120-1?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_f7162769-c71

## Description

Cisco's Silicon One Optics Group (S1O) designs and delivers high-speed optical transceivers and platforms that power Cisco's core data center networking solutions.

You will work with Cisco's best-in-class Silicon Photonics team to drive the development and optimization of optical transceivers and modules (800G, 1.6T and beyond) that seamlessly integrate with Cisco's routing, switching, and datacenter platforms.

We seek an experienced High Speed AMS Design Engineer to drive full-chip electrical specifications and deliver mixed-signal design for Cisco's silicon photonics driver integrated circuits supporting 100G/200G/400G per Lambda solutions.

**Your Impact**

- Participate in analog/mixed-signal design for Cisco's next-generation silicon photonics driver integrated circuits for 100G/200G/400G per Lambda solutions.

- Drive full-chip electrical specifications, circuit design, and verification test plans from concept through production, coordinating across electrical, optical, and product teams.

- Author mixed-signal datapath designs including photonics modulator drivers, serializers, PLLs, TIAs, and control circuits while optimizing for power, performance, testability, and cost.

- Debug complex silicon and system-level issues during bring-up and lab validation phases, driving yield enhancements and failure analysis.

- Collaborate with architecture, digital, SI/PI, and product teams on verification, design, and testability strategies.

**Minimum Qualifications**

- Bachelor's + 7 years of related experience, or Master's + 4 years of related experience, or PhD + 1 year of high-speed AMS design experience.

- Demonstrated knowledge in high-speed optical transceiver design (modulator drivers, TIA, CDR, PLLs, ADC/DAC) and proficiency with industry-standard tools (Cadence Virtuoso, Spectre, Caliber).

- Strong skills in device physics and circuit operations.

- Proficiency in Python or C for design automation, scripting, and analytical tools.

**Preferred Qualifications**

- Master's or PhD degree in Electrical Engineering.

- 6-8 years of hands-on analog/mixed-signal circuit design experience.

- Experience with silicon photonics driver ICs and direct-detect optical module architectures.

- Good understanding of silicon photonics, optical subsystems.

- Expertise in one or more high-speed PHYs, protocols, and subsystems (SerDes 112Gbps/224Gbps PAM4, Ethernet, UCIE, clock and data recovery systems, PLLs, ADC/DAC circuits).

- Hands-on experience with lab instrumentation (digital communication analyzers, real-time scopes, BERTs), SI/PI, and test fixture/PCB.

- Familiarity with Verilog-A modeling for AMS simulations.

- Strong collaborator, team player with the ability to work across teams in multiple sites.

## Skills

### Required
- high-speed optical transceiver design
- analog/mixed-signal design
- Cadence Virtuoso
- Spectre
- Caliber
- Python
- C
- device physics
- circuit operations

### Nice to have
- silicon photonics driver ICs
- direct-detect optical module architectures
- SerDes 112Gbps/224Gbps PAM4
- Ethernet
- UCIE
- clock and data recovery systems
- PLLs
- ADC/DAC circuits
- Verilog-A modeling

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Source: [Apply at cisco.wd5.myworkdayjobs.com](https://cisco.wd5.myworkdayjobs.com/en-US/Cisco_Careers/job/Bangalore-India/XMLNAME-2013158-ASIC-Engineering-Analog-Design-Leader---high-speed-optical-transceiver-circuits--modulator-drivers--TIAs--CDRs--PLLs--ADC-DAC----10--years_2025120-1?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)