Senior/Lead Software Engineer, PCIe

Arista Networks

. Bring up PCIe links on new hardware designs .

Posted 10/5/2026full-timeRemote • CanadaSenior💰 CA$120,000 - CA$195,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive expertise in PCIe hardware and software, including the ability to develop and modify drivers, tune parameters, and implement automated testing. Proficient in C, C++, and Python, with a strong foundation in engineering principles and problem-solving skills.

Highest-signal resume keywords

PCIe Hardware And Software DriversC ProgrammingC++ ProgrammingAutomated Testing DevelopmentProblem Diagnosis And Troubleshooting

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

PCIe Link ConfigurationLinux Driver ModificationError Handling (AER, DPC)Userspace Software DevelopmentPerformance MeasurementFirmware DebuggingNetworking ASICsFPGAsPCIe SwitchesLow-Level Firmware

Tools & Technologies

CC++Python

Industry Keywords

Computer Science FundamentalsPCIe State MachineLTSSMTLPCredit Flow Control

Tech Stack

Tools & technologies

LinuxPythonC++

About the role

Key responsibilities & impact

Bring up PCIe links on new hardware designs
Tune PCIe parameters on root ports, bridges, and endpoints
Modify Linux PCI drivers and virtual memory allocation
Use AER and DPC to improve error visibility and resiliency
Develop userspace software mediating between networking ASICs, FPGAs, and PCIe bridges
Measure hardware read and write performance
Develop automated tests using C, C++, and Python to validate features
Collaborate with hardware, diagnostics, and software engineers to maximize bandwidth and improve PCIe link reliability

Requirements

What you’ll need

Strong engineering and Computer Science fundamentals
8+ years fluency in C or C++
Python experience is an added bonus
Solid understanding of PCIe hardware and software drivers
PCIe state machine, LTSSM, TLP, and credit flow control knowledge is a plus
Experience with PCIe switches
Significant hands-on experience diagnosing problems, troubleshooting issues, and fixing bugs in low-level firmware

Benefits

Comp & perks

Medical, dental, and vision benefits
Wellbeing benefits
Income protection
Group Retirement Savings Plan
Discretionary Arista bonuses may be available
Equity may be available
Sales Incentive Plan commissions are available for eligible Sales roles