Job description

The application window is expected to close on: 01/18/2027 Meet the Team The Silicon One team creates innovative hardware platforms central to the AI era, powering Cisco’s core Switching, Routing, and Wireless products for organizations globally. Our innovations in silicon, optics, and hardware platforms are shaping the technology industry. We re a global team of creative experts, bringing our unique backgrounds and bold ideas to push boundaries and help each other grow. Because full product development—from design to qualification to production—is within our team, we’re able to think differently, experiment more, and work quickly. Join us to power the future of the digital world. Your Impact Build the optical backbone of the AI revolution. As our High-Speed Analog/Mixed-Signal Design Engineer, you will directly lead the electrical specifications, custom circuit design, and verification strategies for Cisco’s next-generation 800G, 1.6T, and beyond silicon photonics modules. Operating within our best-in-class Silicon Photonics team, you will own the end-to-end development cycle for 100G/200G/400G per Lambda driver integrated circuits that seamlessly integrate with Cisco s core routing, switching, and datacenter platforms. Your technical leadership will span critical execution phases from concept to production: Datapath & Control Ownership: Author high-performance mixed-signal datapath and low-speed control circuits for both receive and transmit paths—including photonic modulator drivers, serializers, PLLs, and TIAs—while rigorously optimizing for power, performance, testability, and cost. Full-Chip Architecture & Integration: Drive full-chip electrical specifications and comprehensive verification test plans, coordinating tightly across electrical, optical, and product architecture teams. Bring-Up & Yield Enhancement: Debug complex silicon and system-level bottlenecks hands-on during lab validation and bring-up phases to drive yield enhancements and failure analysis. Technical Leadership & Mentoring: Guide and mentor analog, digital, and validation engineers, elevating our team’s engineering excellence across next-gen data center architectures. Minimum Qualifications Bachelors 12 years of related experience, or Masters 8 years of related experience, or PhD 5 years of high-speed AMS design experience Demonstrated expertise in high-speed optical transceiver design (modulator drivers, TIA, CDR, PLLs, ADC/DAC) and proficiency with industry standard tools (Cadence Virtuoso, Spectre, Caliber, SystemVerilog, Verilog-AMS) Demonstrated ability to lead design teams through full tapeout cycle, making critical decisions with limited data and delivering successful silicon products Proficiency in Python or C for design automation, scripting, and analytical tools Preferred Qualifications 10-15 years of analog/mixed signal circuit design experience Experience with silicon photonics driver ICs and direct-detect optical module architectures Strong understanding of silicon photonics, optical subsystems, MSA standards (QSFP/QSFP-DD), and IEEE 802.3 specifications Expertise in multiple high-speed PHYs, protocols and subsystems (SerDes 112Gbps/224Gbps PAM4, Ethernet, UCIE, clock and data recovery systems, PLLs, ADC/DAC circuits) Demonstrated experience in design for testability (DFT) and test methodology development for large mixed-signal designs Proven experience with lab instrumentation (digital communication analyzers, real-time scopes, BERTs), SI/PI and test fixture/PCB Familiarity with optical sub-component models (photodiodes, modulators) and Verilog-A modeling for AMS simulations Strong collaborator and teammate with the ability to work across teams in multiple sites Why Cisco? At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint. Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere. We are Cisco, and our power starts with you. Message to applicants applying to work in the U.S. and/or Canada: The starting salary range posted for this position is $192,400.00 to $275,800.00 and reflects the projected salary range for new hires in this position in U.S. and/or Canada locations, not including incentive compensation*, equity, or benefits. Individual pay is determined by the candidate s hiring location, market conditions, job-related skillset, experience, qualifications, education, certifications, and/or training. The full salary range for certain locations is listed below. For locations not listed below, the recruiter can share more details about compensation for the role in your location during the hiring process. U.S. employees are offered benefits, subject to Cisco’s plan eligibility rules, which include medical, dental and vision insurance, a 401(k) plan with a Cisco matching contribution, paid parental leave, short and long-term disability coverage, and basic life insurance. Please see the Cisco careers site to discover more benefits and perks. Employees may be eligible to receive grants of Cisco restricted stock units, which vest following continued employment with Cisco for defined periods of time. U.S. employees are eligible for paid time away as described below, subject to Cisco’s policies: 10 paid holidays per full calendar year, plus 1 floating holiday for non-exempt employees 1 paid day off for employee’s birthday, paid year-end holiday shutdown, and 4 paid days off for personal wellness determined by Cisco Non-exempt employees** receive 16 days of paid vacation time per full calendar year, accrued at rate of 4.92 hours per pay period for full-time employees Exempt employees participate in Cisco’s flexible vacation time off program, which has no defined limit on how much vacation time eligible employees may use (subject to availability and some business limitations) 80 hours of sick time off provided on hire date and each January 1st thereafter, and up to 80 hours of unused sick time carried forward from one calendar year to the next Additional paid time away may be requested to deal with critical or emergency issues for family members Optional 10 paid days per full calendar year to volunteer For non-sales roles, employees are also eligible to earn annual bonuses subject to Cisco’s policies. Employees on sales plans earn performance-based incentive pay on top of their base salary, which is split between quota and non-quota components, subject to the applicable Cisco plan. For quota-based incentive pay, Cisco typically pays as follows: .75% of incentive target for each 1% of revenue attainment up to 50% of quota; 1.5% of incentive target for each 1% of attainment between 50% and 75%; 1% of incentive target for each 1% of attainment between 75% and 100%; and Once performance exceeds 100% attainment, incentive rates are at or above 1% for each 1% of attainment with no cap on incentive compensation. For non-quota-based sales performance elements such as strategic sales objectives, Cisco may pay 0% up to 125% of target. Cisco sales plans do not have a minimum threshold of performance for sales incentive compensation to be paid. The applicable full salary ranges for this position, by specific state, are listed below: New York City Metro Area: $214,100.00 - $356,300.00 Non-Metro New York state & Washington state: $192,400.00 - $317,200.00 * For quota-based sales roles on Cisco’s sales plan, the ranges provided in this posting include base pay and sales target incentive compensation combined. ** Employees in Illinois, whether exempt or non-exempt, will participate in a unique time off program to meet local requirements.

Requirements

Must-haves

The application window is expected to close on: 01/18/2027 Meet the Team
Your technical leadership will span critical execution phases from concept to production:
Full-Chip Architecture & Integration: Drive full-chip electrical specifications and comprehensive verification test plans, coordinating tightly across electrical, optical, and product architecture teams.
Bring-Up & Yield Enhancement: Debug complex silicon and system-level bottlenecks hands-on during lab validation and bring-up phases to drive yield enhancements and failure analysis.
Technical Leadership & Mentoring: Guide and mentor analog, digital, and validation engineers, elevating our team’s engineering excellence across next-gen data center architectures.
Bachelors 12 years of related experience, or Masters 8 years of related experience, or PhD 5 years of high-speed AMS design experience
Demonstrated expertise in high-speed optical transceiver design (modulator drivers, TIA, CDR, PLLs, ADC/DAC) and proficiency with industry standard tools (Cadence Virtuoso, Spectre, Caliber, SystemVerilog, Verilog-AMS)
Demonstrated ability to lead design teams through full tapeout cycle, making critical decisions with limited data and delivering successful silicon products
Proficiency in Python or C for design automation, scripting, and analytical tools
10-15 years of analog/mixed signal circuit design experience
$214,100.00 - $356,300.00
$192,400.00 - $317,200.00

Nice-to-haves

Experience with silicon photonics driver ICs and direct-detect optical module architectures
Strong understanding of silicon photonics, optical subsystems, MSA standards (QSFP/QSFP-DD), and IEEE 802.3 specifications
Expertise in multiple high-speed PHYs, protocols and subsystems (SerDes 112Gbps/224Gbps PAM4, Ethernet, UCIE, clock and data recovery systems, PLLs, ADC/DAC circuits)
Demonstrated experience in design for testability (DFT) and test methodology development for large mixed-signal designs
Proven experience with lab instrumentation (digital communication analyzers, real-time scopes, BERTs), SI/PI and test fixture/PCB
Familiarity with optical sub-component models (photodiodes, modulators) and Verilog-A modeling for AMS simulations
Strong collaborator and teammate with the ability to work across teams in multiple sites
We are Cisco, and our power starts with you.
Message to applicants applying to work in the U.S. and/or Canada:
U.S. employees are eligible for paid time away as described below, subject to Cisco’s policies:
10 paid holidays per full calendar year, plus 1 floating holiday for non-exempt employees
1 paid day off for employee’s birthday, paid year-end holiday shutdown, and 4 paid days off for personal wellness determined by Cisco

Application prep

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aipython

Platform: workday
Effort: long

Benefits

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Dental

Vision

401(K)

Parental Leave

Wellness