PCIe Software Engineer

Arista Networks; Austin (TX); On-site; USD 80,000 - 110,000; Full time

Job summary

Arista Networks is looking for a software engineer specializing in PCIe technologies to join their Platform team in Austin, Texas. You'll bring up PCIe links on new hardware, modify Linux drivers, and develop automated tests that ensure reliability and performance.

The ideal candidate has over 3 years of experience in C/C++, along with a solid grasp of PCIe hardware. This role offers a unique opportunity to work at the intersection of hardware and software in a dynamic team environment.

Qualifications

• 3+ years fluency in C or C++.
• Solid understanding of PCIe hardware and software drivers.
• Experience with PCIe switches.

Responsibilities

• Bring up PCIe links on new hardware designs.
• Modify Linux PCI drivers and validate features.
• Develop automated tests using C, C++, and Python.

Skills

C programming

C++ programming

Python programming

PCIe hardware knowledge

Troubleshooting low-level firmware

Job description

Job Description

Who You’ll Work With

Operating 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.

What You’ll Do

As part of this team, you’ll work on projects like:

• 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 mediates between networking ASICs, FPGAs, and PCIe bridges.
• Measuring hardware read and write performance
• Developing automated tests using C, C++ and Python to validate your features.

Qualifications

• Strong engineering and Computer Science fundamentals.
• 3+ 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.

If you’re passionate about performance optimizations and enjoy working at the hardware/software boundary, the Platform team is a perfect choice!

Additional Information

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. All your information will be kept confidential according to EEO guidelines.