Senior/Lead Software Engineer, Layer1

Arista Networks

. Develop software managing physical-layer networking and connectivity components .

Posted 10/5/2026full-timeRemote • CanadaSenior💰 CA$120,000 - CA$195,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in developing and managing software for physical-layer networking, with strong capabilities in C, C++, and Python. Proven ability to lead projects from definition to deployment while collaborating with cross-functional teams and mentoring junior engineers.

Highest-signal resume keywords

C ProgrammingC++ ProgrammingPython ProgrammingSoftware Engineering PrinciplesTechnical Leadership

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software DevelopmentDebuggingCode OptimizationAutomated TestingFeature DevelopmentProblem-SolvingSystem TestingDigital Communication TechnologiesIP NetworkingLow-Level Hardware Interaction

Soft Skills

Team CollaborationMentoringCustomer InteractionIndependent Solution Design

Tools & Technologies

UNIXLinux

Industry Keywords

Physical-Layer NetworkingTelemetry ToolsModulation SchemesSignal EncodingDistributed Systems

Tech Stack

Tools & technologies

Distributed SystemsLinuxPythonUnixC++

About the role

Key responsibilities & impact

Develop software managing physical-layer networking and connectivity components
Write control software for connectors, long-reach optics, forwarding engines, and interface chips
Build instrumentation and telemetry tools to monitor and troubleshoot physical link health
Define standards for new media with Optics teams and bring them to market
Add features, debug problems, and optimize code for scalability and performance
Own projects from definition through deployment and customer interactions
Interface with customers, product management, and hardware engineers to develop Layer1 features
Architect, design, and manage feature development
Develop and maintain features using C, C++, and Python
Review and contribute to functional and design specifications
Build automated tests and test infrastructure
Work with hardware and manufacturing teams to bring Layer1 components to market
Design software control interfaces for Layer1 components with hardware engineers
Provide technical leadership across features, projects, and tools
Analyze and resolve customer-network and system-test problems
Mentor new and junior engineers

Requirements

What you’ll need

BS in Computer Science, Electrical Engineering, or Computer Engineering plus 8 years of experience, or MS plus 6 years of experience, or Ph.D. plus 3 years of experience, or equivalent work experience
Expert knowledge of C or C++ and Python
Knowledge of UNIX or Linux
Applied understanding of software engineering principles
Strong problem-solving and software troubleshooting skills
Ability to design a solution and implement features independently
Ability to work in small teams
Knowledge of digital communication technologies such as modulation and signal encoding schemes is a plus
Understanding of IP networking and/or distributed systems is a plus
Experience working with low-level hardware components is a plus

Benefits

Comp & perks

Medical benefits
Dental benefits
Vision benefits
Wellbeing benefits
Income protection
Group Retirement Savings Plan
Potential eligibility for discretionary bonuses
Potential eligibility for equity
Sales Incentive Plan and commissions for eligible Sales roles