Arista Networks

1 month ago

Senior Optical System Engineer

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 20 hours agoStatus: Live

Job Summary

Lead design, validation, and optimization of high-performance optical interconnects for hyperscale AI infrastructure. Drive system-level qualification of 1.6T/3.2T interconnects, silicon photonics PICs, and PAM4 links, collaborating with photonics, DSP/ASIC, and manufacturing teams to ensure scalable, power-efficient solutions.

Location: Santa Clara

Workplace: Onsite

Employment Type: Full time

Job Function: Solutions Engineering & Sales Engineering

Seniority: Mid level

Key Responsibilities

•Lead system-level design validation and qualification of advanced optical interconnect products including 1.6T/3.2T optical interconnect, silicon photonics PICs, optical engines, DSP-based optical links, and CPO/OCI systems.
•Develop and execute comprehensive validation plans for optical modules, high-speed electrical and optical interfaces, switch-level interoperability, and rack-level system qualification.
•Characterize and optimize key optical and electrical performance metrics including BER, TDECQ, jitter, OSNR, extinction ratio, receiver sensitivity, eye quality, link margin, and power efficiency.
•Perform module-level, simulation-level, and system-level qualification testing for IMDD and coherent optical systems.
•Lead high-speed optical and electrical debug activities for PAM4 links operating at 200G/lane, 400G/lane, and beyond.

Key Requirements

•Bachelor’s degree in Optical Engineering, Electrical Engineering, Physics, or a closely related field.
•Minimum 5 years of hands-on experience in optical system validation, optical transceiver qualification, or optical subsystem testing.
•Strong experience with silicon photonics PICs, optical transceivers, optical engines, high-speed DSP-based links, CPO/OCI architectures, LPO/LRO/XPO optical systems, and AI/datacenter optical interconnect architectures.
•Direct experience with 400G, 800G, and 1.6T optical systems, PAM4 modulation, high-speed Rx/Tx characterization, switch-level interoperability testing, firmware and EEPROM validation, BER/TDECQ/RIN measurements, receiver sensitivity testing, and wafer-level optical characterization.
•Strong familiarity with optical communication principles including NRZ/PAM4 modulation, dispersion, OSNR, jitter, equalization, signal integrity, and power integrity concepts.

Experience:5+ yearsOptical communicationsData centerAI infrastructure

Education:Bachelor's in Optical Engineering

Skills:AnalyticalTroubleshootingCommunicationProblem-solving

Languages:English

Tech Stack:PythonMATLABLabVIEWLumericalHFSSADSCOMSOLVPIZemaxBERTDCAOscilloscopeOSATunable laserNetwork analyzer

Company Brief

Arista Networks

Designs and sells high-performance cloud networking hardware and software for large-scale data centers and enterprise environments, including switches, routers, and network operating systems focused on programmability, telemetry, and low-latency networking.

Industry: Networking Equipment

Company Size: Enterprise (1,001+ employees)

Revenue: USD 1B+

Growth: Public Company

Valuation: Public Company (Market Cap in USD)

Funding: IPO / Publicly Listed

Headquarters: Santa Clara, United States

Founded: 2004

Glassdoor: 4.1

Website LinkedIn

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Arista Networks

1 month ago

Senior Optical System Engineer

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 20 hours agoStatus: Live

Job Summary

Location: Santa Clara

Workplace: Onsite

Employment Type: Full time

Job Function: Solutions Engineering & Sales Engineering

Seniority: Mid level

Key Responsibilities

•Lead system-level design validation and qualification of advanced optical interconnect products including 1.6T/3.2T optical interconnect, silicon photonics PICs, optical engines, DSP-based optical links, and CPO/OCI systems.
•Develop and execute comprehensive validation plans for optical modules, high-speed electrical and optical interfaces, switch-level interoperability, and rack-level system qualification.
•Characterize and optimize key optical and electrical performance metrics including BER, TDECQ, jitter, OSNR, extinction ratio, receiver sensitivity, eye quality, link margin, and power efficiency.
•Perform module-level, simulation-level, and system-level qualification testing for IMDD and coherent optical systems.
•Lead high-speed optical and electrical debug activities for PAM4 links operating at 200G/lane, 400G/lane, and beyond.

Key Requirements

•Bachelor’s degree in Optical Engineering, Electrical Engineering, Physics, or a closely related field.
•Minimum 5 years of hands-on experience in optical system validation, optical transceiver qualification, or optical subsystem testing.
•Strong experience with silicon photonics PICs, optical transceivers, optical engines, high-speed DSP-based links, CPO/OCI architectures, LPO/LRO/XPO optical systems, and AI/datacenter optical interconnect architectures.
•Direct experience with 400G, 800G, and 1.6T optical systems, PAM4 modulation, high-speed Rx/Tx characterization, switch-level interoperability testing, firmware and EEPROM validation, BER/TDECQ/RIN measurements, receiver sensitivity testing, and wafer-level optical characterization.
•Strong familiarity with optical communication principles including NRZ/PAM4 modulation, dispersion, OSNR, jitter, equalization, signal integrity, and power integrity concepts.

Experience:5+ yearsOptical communicationsData centerAI infrastructure

Education:Bachelor's in Optical Engineering

Skills:AnalyticalTroubleshootingCommunicationProblem-solving

Languages:English

Tech Stack:PythonMATLABLabVIEWLumericalHFSSADSCOMSOLVPIZemaxBERTDCAOscilloscopeOSATunable laserNetwork analyzer

Company Brief

Arista Networks

Industry: Networking Equipment

Company Size: Enterprise (1,001+ employees)

Revenue: USD 1B+

Growth: Public Company

Valuation: Public Company (Market Cap in USD)

Funding: IPO / Publicly Listed

Headquarters: Santa Clara, United States

Founded: 2004

Glassdoor: 4.1

Website LinkedIn