PCIe 软件工程师
PCIe Software Engineer
#### 公司简介
Arista Networks 是大型数据中心、校园和路由环境中的数据驱动型客户端到云网络领域的行业领导者。我们与众不同之处在于对创新的不懈追求。我们利用云计算、人工智能和软件定义网络的最新进展，为客户提供在日益互联的世界中保持竞争优势的解决方案。我们的解决方案不仅满足当前数字环境的需求，还能预见并适应未来的挑战。
在 Arista，我们重视每位员工带来的多样化的思想和观点。我们认为，营造一个包容的环境，让来自不同背景和经验的个人感到受欢迎，是推动创造力和创新的关键。
我们对卓越的承诺使我们获得了多项备受推崇的奖项，如最佳工程团队、最佳多元化、薪酬和工作与生活平衡公司。在 Arista，我们以取得的成功记录为荣，并努力在我们所做的每一件事中保持最高质量和服务标准。
#### 职位描述
**你将与谁合作**
平台团队位于硬件与软件交汇处，构建我们网络 ASIC 和支持基础设施的基础。PCIe 软件工程师编写管理交换机中硬件组件之间高速通信的代码。我们与硬件、诊断和软件工程师合作，以最大化带宽并提高 PCIe 链路的可靠性。
**你将做什么**
作为该团队的一员，你将参与以下项目：
- 在新的硬件设计上启动 PCIe 链路
- 在根端口、桥接器和端点上调整 PCIe 参数
- 修改 Linux PCI 驱动程序和虚拟内存分配
- 使用 AER 和 DPC 提高错误可见性和容错能力
- 开发用户空间软件，用于在网络 ASIC、FPGA 和 PCIe 桥接器之间进行中介
- 测量硬件读写性能
- 使用 C、C++ 和 Python 开发自动化测试用例来验证你的功能。
#### 资格要求
- 扎实的工程和计算机科学基础。
- 8 年以上 C 或 C++ 的熟练经验。Python 经验是加分项。
- 对 PCIe 硬件和软件驱动程序有扎实的理解。
- 了解 PCIe 状态机、ltssm、tlp、信用流量控制者优先。
- 有 PCIe 交换机的经验。
- 有大量解决实际问题的实践经验。
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#### Company Description
Arista Networks is an industry leader in data-driven, client-to-cloud networking for large data center, campus and routing environments. What sets us apart is our relentless pursuit of innovation. We leverage the latest advancements in cloud computing, artificial intelligence, and software-defined networking to provide our clients with a competitive edge in an increasingly interconnected world. Our solutions are designed to not only meet the current demands of the digital landscape but to also anticipate and adapt to future challenges.
At Arista we value the diversity of thought and perspectives that each employee brings to the table. We believe that fostering an inclusive environment, where individuals from various backgrounds and experiences feel welcome, is essential for driving creativity and innovation.
Our commitment to excellence has earned us several prestigious awards, such as Best Engineering Team, Best Company for Diversity, Compensation, and Work-Life Balance. At Arista, we take pride in our track record of success and strive to maintain the highest standards of quality and performance in everything we do.
#### 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.
- 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
#LI-PA1
#### Additional Information
The new hire base pay for this role has a pay range of $120,000 to $195,000 across Canada. Arista offers different pay ranges based on work location, so that we can offer consistent and competitive pay appropriate to the market. The actual base pay offered will be based on a wide range of factors, including skills, qualifications, relevant experience, and work location.
The pay range provided reflects base pay only and in addition certain roles may also be eligible for discretionary Arista bonuses and equity. Employees in Sales roles are eligible to participate in Arista’s Sales Incentive Plan, which pays commissions calculated as a percentage of eligible sales. Employees are also entitled to benefits including medical, dental, vision, wellbeing, income protection and a Group Retirement Savings Plan. The recruiting team can share more details during the hiring process specific to the role and location.