PCIe Software Engineer

PCIe Software EngineerOperating right where hardware meets software, the Platform team builds the foundation for our networking ASICs and supporting infrastructure. PCIe software engineers write the code that manages high speed communication between hardware components in our switches. We work with hardware, diagnostics, and software engineers to maximize bandwidth and improve reliability on the PCIe links.As part of this team, you'll work on projects like:Bringing up PCIe links on new hardware designsTuning PCIe parameters on root ports, bridges, and end pointsModifying the Linux PCI drivers and virtual memory allocationUsing AER and DPC to improve error visibility and resiliencyDeveloping userspace software that mediates between networking ASICs, FPGAs, and PCIe bridgesMeasuring hardware read and write performanceDeveloping automated tests using C, C++, and Python to validate your featuresStrong engineering and Computer Science fundamentals.3+ years fluency in C or C++.

Python experience an added bonus.Solid understanding of PCIe hardware and software driversPCIe state machine, LTSSM, TLP, credit flow control knowledge a plusExperience with PCIe switchesSignificant hands-on experience diagnosing problems, troubleshooting issues, and fixing bugs in low-level firmwareIf you're passionate about performance optimizations and enjoy working at the hardware/software boundary, the Platform team is a perfect choice!Arista Networks is an equal opportunity employer. Arista makes all hiring and employment-related decisions in a non-discriminatory manner without regard to race, color, religion, sex, sexual orientation, gender identity, national origin or any other factor determined to be unlawful under applicable federal, state, or law law. All your information will be kept confidential according to EEO guidelines.