PCIe Software Engineer
About The Position
Arista Networks is an industry leader in data-driven, client-to-cloud networking for large data center, campus and routing environments. The company is known for its relentless pursuit of innovation, leveraging advancements in cloud computing, artificial intelligence, and software-defined networking to provide competitive solutions. Arista values diversity of thought and perspectives, fostering an inclusive environment to drive creativity and innovation, and has received awards for Best Engineering Team, Best Company for Diversity, Compensation, and Work-Life Balance. The Platform team, where this role is situated, builds the foundational software for networking ASICs and supporting infrastructure, operating at the intersection of hardware and software. PCIe software engineers on this team are responsible for managing high-speed communication between hardware components in switches, collaborating with hardware, diagnostics, and other software engineers to maximize bandwidth and improve reliability on PCIe links.
Requirements
- Strong engineering and Computer Science fundamentals
- 3+ years fluency in C or C++
- Solid understanding of PCIe hardware and software drivers
- Experience with PCIe switches
- Significant hands-on experience diagnosing problems, troubleshooting issues, and fixing bugs in low-level firmware
- Passion for performance optimizations and enjoyment of working at the hardware/software boundary
Nice To Haves
- Python experience an added bonus
- PCIe state machine, ltssm, tlp, credit flow control knowledge a plus
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
Benefits
- Discretionary Arista bonuses
- Equity
- Medical benefits
- Dental benefits
- Vision benefits
- Wellbeing benefits
- Tax savings
- Income protection
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
Number of Employees
501-1,000 employees
