Senior PCIe Software Engineer — Linux Drivers & HW

SmartRecruiters, Inc.; Vancouver; Hybrid; CAD 120,000 - 195,000; Full time

Job summary

Arista Networks is seeking a seasoned PCIe software engineer to join the Platform team in Canada. You will work on bringing up pcie links on new hardware designs and tuning PCIe parameters across root ports, bridges, and endpoints.

The role involves modifying linux pci drivers, enhancing error visibility with AER/DPC, and developing userspace software mediating between networking ASICs, FPGAs, and PCIe bridges. Strong low‑level firmware troubleshooting experience is essential.

Qualifications

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

Responsibilities

• Bringing up pcie links on new hardware designs
• Tuning pcie parameters on root ports, bridges, and end points
• Modifying the linux pci drivers and virtual memory allocation
• Using AER and DPC to improve error visibility and resiliency
• Developing userspace software that mediate between networking ASICs, FPGAs, and PCIe bridges.
• Measuring hardware read and write performance
• Develop automated tests using C, C++ and Python to validate your features.

Skills

C/C++

Python

Job description

Arista Networks is seeking a seasoned PCIe software engineer to join the Platform team in Canada. You will work on bringing up pcie links on new hardware designs and tuning PCIe parameters across root ports, bridges, and endpoints.

The role involves modifying linux pci drivers, enhancing error visibility with AER/DPC, and developing userspace software mediating between networking ASICs, FPGAs, and PCIe bridges. Strong low‑level firmware troubleshooting experience is essential.