Arista Networks
Networking
SeniorOpticalSystemEngineer
“Senior Optical System Engineer at Arista Networks. Skills: Optical system design, Optical interconnects, Silicon photonics, High-speed links. Lead system-level design validation. Lead system-level qualification of advanced optical interconnect products”
Industry & Context.
Troubleshooting; Debugging; Root-cause analysis
What They're Looking For.
Must Have
Bachelor’s degree in Optical Engineering, Electrical Engineering, Physics, or related field, Minimum 5 years of hands-on experience in optical system validation, optical transceiver qualification, or optical subsystem testing, 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, Familiarity with optical communication principles including NRZ/PAM4 modulation, dispersion, OSNR, jitter, equalization, signal integrity, and power integrity concepts, Proficiency with optical and electrical lab instrumentation including BERTs, DCAs, high-speed oscilloscopes, OSAs, tunable lasers, VOAs, network analyzers, high-speed probes and fixtures, and optical power meters, Experience with test automation and scripting using Python, MATLAB, and LabVIEW, Familiarity with optical and RF simulation tools such as Lumerical, HFSS, ADS, COMSOL, VPI, and Zemax, Understanding of IEEE 802.3 standards, QSFP-DD/OSFP modules, CMIS, optical module architectures, equalization techniques including CTLE, DFE, and FIR, as well as optical packaging and thermal considerations, Experience with interoperability testing, root-cause and debugging, Analytical, troubleshooting, debugging, and communication skills
Nice to Have
Master’s or Ph. D. degree in Optical Engineering, Electrical Engineering, Physics, or related field, Experience with silicon photonics, optical engine packaging, AI interconnect architectures, optical switching systems, co-packaged optics (CPO), Optical Compute Interconnect (OCI), and coherent optical systems, Experience with high-speed transceiver and optical engine testing at 100G, 400G, 800G, and 1.6T data rates, Familiarity with DSP tuning and equalization techniques including CTLE, DFE, FIR equalization, adaptive equalization, and PAM4 eye optimization, Familiarity with optical and RF simulation tools including Lumerical, HFSS, ADS, COMSOL, VPI, and Zemax, Exposure to AI cluster optical interconnect architectures, optical switching fabrics, XPO/LPO/LRO systems, and high-density optical engine architectures, Experience with database-driven analytics platforms, automated regression validation systems, and production test automation frameworks, Publications, patents, industry conference presentations, or contributions to IEEE, OIF, MSA, or CMIS standards activities
What You'll Do.
Lead system-level design validation
Lead system-level qualification of advanced optical interconnect products
Develop validation plans for optical modules
Execute validation plans for high-speed electrical interfaces
Execute validation plans for high-speed optical interfaces
Execute validation plans for switch-level interoperability
Execute validation plans for rack-level system qualification
Characterize optical performance metrics
Characterize electrical performance metrics
Optimize optical performance metrics
Optimize electrical performance metrics
Perform module-level qualification testing
Perform simulation-level qualification testing
Perform system-level qualification testing for IMDD systems
Perform system-level qualification testing for coherent optical systems
Lead high-speed optical debug activities
Lead high-speed electrical debug activities for PAM4 links
Develop optical/electrical test stations
Automate optical/electrical test stations
Maintain optical/electrical test stations
Collaborate with photonics teams
Collaborate with DSP/ASIC teams
Collaborate with SI/PI teams
Collaborate with packaging teams
Collaborate with firmware teams
Collaborate with manufacturing teams
Optimize overall system performance
Optimize system manufacturability
Support optical architecture development for AI clusters
Support optical architecture development for XPO/LPO/LRO systems
Support optical architecture development for co-packaged optics
Support optical architecture development for optical switching systems
Support optical architecture development for optical compute fabrics
Contribute to industry standards activities
Generate detailed technical reports
How You'll Work.
Team & Collaboration
Cross-functional teams; Photonics teams; DSP/ASIC teams; SI/PI teams; Packaging teams; Firmware teams; Manufacturing teams; System architecture teams
Communication Scope
Technical reports
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