Arista Networks

PCIe Software Engineer

Arista Networks$100K — $130K *
Telecommunications & Hardware
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Strong engineering and computer science fundamentals
  • 3+ years experience with C or C++, Python knowledge is a plus
  • Solid understanding of PCIe hardware and software drivers
  • Familiarity with PCIe state machine, LTSSM, TLP, and credit flow control
  • Experience with PCIe switches
  • Hands-on expertise in diagnosing and troubleshooting low-level firmware issues

Responsibilities

  • Bring up PCIe links on new hardware designs
  • Tune PCIe parameters on root ports, bridges, and endpoints
  • Modify Linux PCI drivers and manage virtual memory allocation
  • Utilize AER and DPC for enhanced error visibility and resiliency
  • Develop userspace software interfacing with networking ASICs, FPGAs, and PCIe bridges
  • Measure and analyze hardware read/write performance
  • Create automated tests using C, C++, and Python to validate new features

Benefits

  • Collaborative work environment at the hardware/software intersection
  • Opportunity to work on cutting-edge hardware designs
  • Hands-on experience with PCIe standards and diagnostics
  • Focus on performance optimization
  • Engagement with cross-functional teams of engineers
Full 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 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.


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

About Arista Networks

Arista Networks is a computer networking company headquartered in Santa Clara, California. The company designs and sells multilayer network switches to deliver software-defined networking solutions for large datacenter, cloud computing, high-performance computing and high-frequency trading environments. Arista Networks was founded in 2004 by former Cisco Systems engineers and is led by CEO Jayshree Ullal. The company went public in 2014 and is traded on the New York Stock Exchange under the ticker symbol ANET.
Learn more about Arista Networks
Size
2,993 employees
Market Cap
$36.5 billion
Industry
Net Income
$634.5 million
Founded
2004
5 Year Trend
+21.2%
Revenue
$2.3 billion
NASDAQ

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