Senior C++ Engineer

Arista Networks

Senior C++ Engineer developing SONiC software for Arista Networks. Collaborating on features for large data center networks with a focus on innovation.

Posted 7/21/2026full-timeRemote • 🇷🇴 RomaniaSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in C, C++, and Python programming for system software development, with a strong understanding of L2/L3 networking protocols and the ability to debug and implement solutions effectively. Capable of mentoring junior engineers and collaborating with cross-functional teams to enhance software quality and performance.

Highest-signal resume keywords

C ProgrammingC++ ProgrammingPython ProgrammingL2/L3 NetworkingSoftware Debugging

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Applicant Tracking System Keywords

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Hard Skills

C ProgrammingC++ ProgrammingPython ProgrammingSoftware DebuggingTest Plan SpecificationAutomated TestingPacket Forwarding EngineEthernet BridgingRouting ProtocolsSoftware Engineering Principles

Soft Skills

Problem SolvingMentoringCollaborationCommunicationAnalytical Thinking

Tools & Technologies

UNIXLinuxCommand Line InterfaceSoftware LibrariesDistributed Systems

Industry Keywords

IP Routing ProtocolsRIPOSPFBGPIS-ISPIM802.1d Bridging802.1d Spanning Tree Protocol802.1ax Link Aggregation Control Protocol802.1AB Link Layer Discovery Protocol

Tech Stack

Tools & technologies

Distributed SystemsLinuxPythonUnix

About the role

Key responsibilities & impact

Write functional specifications and design specifications for system software to manage hardware components.
Independently implement solutions to small-sized problems in the system software using the C, C++, and python programming languages.
Write test plan specifications for small-sized features and implement automated test programs to execute the cases described in the test plan.
Debug problems found by our automated test programs and fix the problems.
Work on a team implementing, testing, and debugging solutions to larger routing protocol problems.
Worth with Customer Support Engineers to analyze problems in customer networks and provide fixes for those problems when needed in the form of new software releases or software patches.
Work with the System Test Engineers to analyze problems found in their tests and provide fixes for those problems.
Mentor new and junior engineers to bring them up to speed in Arista’s software development environment as well as broader SONiC development.
Review and contribute to the specifications and implementations written by other team members and the SONiC community.
Help to create a schedule for the implementation and debugging tasks, update that schedule weekly, and report it to the project lead.

Requirements

What you’ll need

BSc, MS or Ph.D. in Computer Science/Electrical Engineering/Computer Engineering with 2+ years of related post graduate work experience
Knowledge of C, C++, and/or python.
Knowledge of UNIX or Linux.
Understanding of L2/L3 networking including at least one of the following areas is desirable: IP routing protocols, such as RIP, OSPF, BGP, IS-IS, or PIM.
Layer 2 features such as 802.1d bridging, the 802.1d Spanning Tree Protocol, the 802.1ax Link Aggregation Control Protocol, the 802.1AB Link Layer Discovery Protocol, or RFC 1812 IP routing.
Ability to utilize, test, and debug packet forwarding engine and a hardware component’s vendor provided software libraries in your solutions.
Infrastructure functions related to distributed systems such as messaging, signaling, databases, and command line interface techniques.
Hands-on experience in the design and development of ethernet bridging or routing related software or distributed systems software is desirable.
Hands-on experience with enterprise or service provider class Ethernet switch/router system software development, or significant PhD level research in the area of network routing and packet forwarding is desirable.
Applied understanding of software engineering principles.
Strong problem solving and software troubleshooting skills.
Ability to design a solution to a small-sized problem, and implement that solution without outside help.
Able to work on a small team solving a medium-sized problem with limited oversight.

Benefits

Comp & perks

Health insurance
Flexible work arrangements
Professional development opportunities
Work-Life Balance