Job DescriptionThe OpenConfig team is responsible for building a dynamic, programmable data centre infrastructure using software‑defined networking principles such as declarative configuration and model‑driven management and operations.What You'll DoArista’s engineering team started from a blank sheet of paper to architect an entirely new networking operating system. Arista’s unique architecture is based on three guiding principles:State orientationOpen standards‑based approachSingle software image consistencyHere are details for each principle:State Orientation for publish‑subscribe communicationState Orientation uses a unique multi‑process state‑sharing architecture that separates state information from protocol processing and application logic with a central database shared by diverse applications. Both system state and data are stored in the system database where data is accessed via an automated publish/subscribe model. This principle provides module independence, self‑healing resiliency, and multi‑process software stability, contrasting with the legacy approach that relies on extensive inter‑process communications, a shared memory bus, or a complex message passing framework.An Open ApproachArista took the lessons of the open‑source world and built EOS on top of an unmodified Linux kernel, maintaining full, secured access to the Linux shell and utilities. By adhering to open source Linux, EOS also natively supports Linux containers and virtual machines, simplifying deployment of new services and enhancing DevOps practices.A Single ImageArista’s third guiding principle is to provide a single software image that runs across all products in various packaging forms—physical platforms, virtual machines, and containers. The EOS single image uses the same source code and version across the entire portfolio, improving testing, reliability, and reducing operational costs. Automation workflows via Ansible or Terraform work across all Arista devices with a single integration.QualificationsStrong engineering and Computer Science fundamentals.Extensive background in algorithms and strong software architecture skills.5+ years of fluency in one of C or C++ programming.Hands‑on experience with designs and implementations in a strong product‑engineering environment.
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