Senior/Lead Software Engineer, PCIe

Arista Networks

Senior Software Engineer focused on PCIe solutions at Arista Networks. Collaborating on high-speed communication between hardware and developing automated tests in C, C++, and Python.

Posted 5/22/2026full-timeRemote • 🇨🇦 CanadaSenior💰 CA$120,000 - CA$195,000 per yearWebsite

Tech Stack

Tools & technologies

LinuxPython

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 that mediates between networking ASICs, FPGAs, and PCIe bridges
Measure hardware read and write performance
Develop automated tests using C, C++ and Python to validate your features

Requirements

What you’ll need

8+ years fluency in C or C++
Strong engineering and Computer Science fundamentals
Solid understanding of PCIe hardware and software drivers
PCIe state machine, ltssm, tlp, credit flow control knowledge a plus
Significant hands-on experience diagnosing problems, troubleshooting issues, and fixing bugs in low-level firmware

Benefits

Comp & perks

Medical
Dental
Vision
Wellbeing
Income protection
Group Retirement Savings Plan

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

CC++PythonLinux PCI driversPCIeAERDPCfirmware debuggingautomated testingperformance measurement

Soft Skills

problem solvingtroubleshootingdiagnosing issuesbug fixingengineering fundamentals