Prepare for and practice interview questions from Arista Networks.

Arista Networks Interview Questions

Arista Networks Interview Guides

Suppose there exists a new airline named Jetco that flies domestically across North America. Jetco recently had a study commissioned that tested the boarding time of every airline, and it came out that Jetco had the fastest average boarding times of any airline.

What factors could have biased this result, and what would you look into?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

Boarding Times Bias

A new airline came out as the fastest average boarding times compared to other airlines.  What factors could have biased this result and what would you look into?

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

What is a key disadvantage of the F-test when compared to multiple t-tests?

What is a key disadvantage of the F-test when compared to multiple t-tests?

Hundreds of Hypotheses

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

Let’s say we have a table with an <code>id</code> and <code>name</code> fields. The table holds over 100 million rows and we want to sample a random row in the table without throttling the database.

Write a query to randomly sample a row from this table.

Input:

<code>big_table</code> table

<table>
<thead>
<tr>
<th>Columns</th>
<th>Type</th>
</tr>
</thead>

<tbody>
<tr>
<td><code>id</code></td>
<td>INTEGER</td>
</tr>

<tr>
<td><code>name</code></td>
<td>VARCHAR</td>
</tr>
</tbody>
</table>

Write a query to randomly sample a row from a big table.

Random SQL Sample

Arista Networks Salaries by Position

<h3>Job Description</h3><div>Job Description<div>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 What You’ll DoWe are looking for an experienced, self-motivated, and team-oriented Hardware Engineering Manager to drive the creation of industry-leading Cloud Networking Ethernet switches. Arista takes pride in designing and manufacturing the highest density and greatest bandwidth products in the market. As an Arista Hardware Engineering Manager, you will lead multiple cross-functional teams in the design and verification of an industry-leading portfolio of Networking Ethernet switches.<ul><li>Provide technical guidance and directions to hardware engineers, to resolve complex Hardware bring-up and cross functional problems</li><li>Work with product management teams to translate high-level product direction into future system designs with detailed, executable steps for cross-functional teams.</li><li>Drive Vendor roadmaps of key components (ASICs, connectors, PCB vendors, etc.) to advance Arista’s Hardware designs, as well as align with internal product roadmaps</li><li>Communicate project status and changes to mitigate unexpected issues.</li><li>Hardware schematic entry, Layout supervision, board bring-up, and cross functional system debug when resource gaps exist</li><li>Participate in schematic and board design reviews</li><li>Assist in analyzing Signal Integrity and Power Integrity simulation and measurement results</li><li>Develop and communicate priorities across a portfolio of projects.</li><li>Drive the design of high-quality products with high first-pass yields at manufacturing.</li><li>Ensure the prototype manufacturing infrastructure and capacity meets product portfolio needs.</li><li>Act as the initial point of contact for customer escalations, and supervise resolution </li><li>Manage, mentor, and motivate a team of hardware engineers with a diverse range of experience levels: from new college grads to experienced veterans of the industry.</li><li>Identify, define, and implement new processes and tools that help improve productivity and efficiency within the Hardware team</li></ul>Qualifications <ul><li>BS or MS in Electrical Engineering </li><li>10+ years of relevant experience in networking hardware design, particularly in the Enterprise market: Access points, Access Layer POE Switches, and Aggregation layer Optics switches</li><li>Proven experience leading hardware engineering teams across multiple simultaneous projects. Prior technical management experience is a must</li><li>Proficient with high layer count printed circuit boards and high-speed design, with background experience or knowledge of key protocols such as: Ethernet, SMBus, SPI, PCIe, POE, WiFi, PTP, MDIO</li><li>Expertise in Designing For Manufacturability (DFM) and collaborating with Contract Manufacturers (CM), Original Design Manufacturers (ODM) and Joint Design Manufacturers (JDM)</li><li>Demonstrated success in taking products from concept through to production.</li><li>Strong communication skills and experience in guiding direct reports, working with other managers or other teams, and interfacing with executive leadership</li><li>Ability to translate high-level product direction into actionable steps.</li><li>Effective project management skills, including tracking execution and implementing corrective actions.</li><li>Experience with embedded x86/ARM system design, gigabit+ signaling, high-speed buses, and regulatory compliance.</li><li>Skilled in technical documentation, schematic design, CAD collaboration, and software engineering collaboration.</li><li>Familiarity with signal integrity and power integrity concepts and tools, such as: impedance, PDN’s, differential routing, insertion loss, S-parameters, TDR’s, VNA’s</li><li>Background experience with scripting, and general software development is a strong plus</li><li>This is an majority onsite role at our Santa Clara HQ, with minimal opportunities for remote work</li></ul>Compensation InformationThe new hire base pay for this role has a salary range of $152,000 to $211,000. 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. US-based employees are also entitled to benefits including medical, dental, vision, wellbeing, tax savings and income protection. The recruiting team can share more details during the hiring process specific to the role and location.#LI-GR1 Additional Information <div></div>Arista Networks is an equal opportunity employer.  Arista makes all hiring and employment-related decisions in a non-discriminatory manner without regard to race, color, religion, sex, sexual orientation, gender identity, national origin or any other factor determined to be unlawful under applicable federal, state, or law law.  All your information will be kept confidential according to EEO guidelines.</div></div>

Arista Networks is an industry leader in Cognitive Cloud Networking for mission critical data center and campus environments. Arista is a well-established and profitable company with over $5 billion in revenue. Arista’s award-winning platforms, ranging in Ethernet speeds from 10M to 400G bits per second, redefine scalability, agility and resilience. Arista has shipped more than 20 million cloud networking ports worldwide with CloudVision and EOS, an advanced network operating system. Committed to open standards, Arista is a founding member of the 25/50GbE consortium. Arista Networks products are available worldwide directly and through partners. 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 As a Software Engineer your core responsibility is to deliver new cutting edge product features. A major part of this is writing and owning the design/implementation of the code that drives our products. However, the role of a Software Engineer is much bigger than ‘simply’ writing code. Software engineers work on the whole development process, including: · Suggesting and deciding what features to build · Design, architect and develop network applications and microservices for Data Center Networking on SONiC · Pushing, testing, documenting the feature · Working alongside customers in the field if needed Qualifications Are you right for this role? This is an interesting and exciting opportunity to be a part of the software development team that is redefining Data Center switching. For success at Arista all you need is: · Strong engineering and Computer Science fundamentals · Extensive background in algorithms and strong software architecture skills · Fluency in one of C/C++/Python programming · Hands-on experience with designs and implementations in a strong product-engineering environment Preferred qualifications · A minimum of five years of experience in software development · A minimum of one year of hands-on SONiC experience is a must o Understanding of SONiC architecture o Knowledge of the FRR open routing stack (formerly Quagga, Zebra), Redis-DB, and Docker o Experience using SONiC SAI for new feature development and integration · Experience in Network Systems Software development · Strong software debugging skills especially in embedded systems · Experience with software development for the forwarding ASICs, FPGAs, Network Processors etc · Datapath forwarding for ACLs, QoS, Unicast, Multicast, etc is a plus · Strong communication skills and the ability to work in a team environment · Experience working through the complete software development life cycle right from Additional Information Arista stands out as an engineering-centric company. Our leadership, including founders and engineering managers, are all engineers who understand the principles of sound software engineering and the importance of doing things right. We hire globally into our diverse team. At Arista, engineers have complete ownership of their projects. Our management structure is flat and streamlined, and software engineering is led by those who understand it best. We prioritize the development and utilization of test automation tools. Every part of the company is accessible to our engineers, providing opportunities to work across various domains. Arista is headquartered in Santa Clara, California, with development offices in Australia, Canada, India, Ireland, and the US. We consider all our R&D centers equal in stature. Join us to shape the future of networking and be part of a culture that values invention, quality, respect, and fun.

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 WithArista Networks is looking for world-class Senior/Lead Network Systems software engineers.Network systems software is all about managing hardware components on switches and routers. As a senior/lead Network Systems engineer, you will collaborate and work with customers, product management and hardware engineers to design and build novel features that help Arista hardware run effectively and efficiently. You will write software that controls everything from temperature sensors, fan controllers, power controllers, storage devices to FPGAs, NICs and PCIE switches. You will design abstractions that allow this software to be easily packaged and integrated into hardware drivers that manage all our hardware. You will have the opportunity to design solutions to accelerate key functions using hardware and FPGAs to improve system performance. You will also get to work closely with our hardware engineers throughout the lifecycle of our products - ranging from influencing hardware designs for ease of software control, to bringing up brand new hardware and taking it through the development cycle to market.What You'll DoArista Software Engineering roles demand a strong and broad software engineering background. While the primary focus area for this role is Network Systems software, the role will cover all aspects of software development spanning the addition of new features, debugging problems and fine tuning code for scalability and performance. You will own your projects from definition to deployment and customer interactions, and you will be responsible for the quality of everything you deliver. Arista Software Engineering prides itself on a supportive and growth oriented culture. Over time, as your interests change, coupled with evolving business needs you will have the opportunity to switch from packet forwarding to other areas, if you like. Responsibilities<ul><li>Interface with customers, product management and hardware engineers to come up with innovative new network systems features.</li><li>Architect, design and manage the development of these features.</li><li>Develop and maintain features using C, C++ and Python, review and contribute to functional and design specifications. Build automated tests and test infrastructure to test the features.</li><li>Work with hardware and manufacturing teams to bring new hardware to market.</li><li>Collaborate with hardware engineers to design optimal software control interfaces for managing hardware components.</li><li>Provide technical leadership across features, projects and tools.</li><li>Work with Customer Support Engineers and customers to analyze, mitigate and fix problems in customer networks.</li><li>Work with the System Test Engineers to analyze problems found in their tests and provide fixes for those problems.</li><li>Mentor new and junior engineers to bring them up to speed in Arista's software development environment. </li></ul>Qualifications <ul><li>BS Computer Science/Electrical Engineering/Computer Engineering + 8 years experience, or MS Computer Science/Electrical Engineering/Computer Engineering + 6 years experience, or Ph.D. in Computer Science/Electrical Engineering/Computer Engineering + 3 years experience, or equivalent work experience</li><li>Expert knowledge of C or C++ and Python.</li><li>Knowledge of UNIX or Linux</li><li>Hands-on experience in the design and development of hardware device drivers and/or system management utilities</li><li>Understanding of IP networking and/or distributed systems is a plus</li><li>Experience working with low level hardware components is a plus </li><li>Applied understanding of software engineering principles</li><li>Strong problem solving and software troubleshooting skills</li><li>Ability to design a solution and implement features independently. </li><li>Ability to work in small teams.</li></ul> 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.

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 WithArista Networks is looking for world-class Network Systems software engineers.Network systems software is all about managing hardware components on switches and routers. As a Network Systems engineer, you will collaborate with hardware engineers to design and build novel features that help Arista hardware run effectively and efficiently. You will write software that controls everything from temperature sensors, fan controllers, power controllers, storage devices to FPGAs, NICs and PCIE switches. You will design abstractions that allow this software to be easily packaged and integrated into hardware drivers that manage all our hardware. You will also get to work closely with our hardware engineers throughout the lifecycle of our products - ranging from influencing hardware designs for ease of software control, to bringing up brand new hardware and taking it through the development cycle to market.What You'll DoArista Software Engineering roles demand a strong and broad software engineering background. While the primary focus area for this role is Network Systems software, the role will cover all aspects of software development spanning the addition of new features, debugging problems and fine tuning code for scalability and performance. You will own your projects from definition to deployment and customer interactions, and you will be responsible for the quality of everything you deliver. Arista Software Engineering prides itself on a supportive and growth oriented culture. Over time, as your interests change, coupled with evolving business needs you will have the opportunity to switch from packet forwarding to other areas, if you like. Responsibilities<ul><li>Develop and maintain features using C, C++ and Python, review and contribute to functional and design specifications. Build automated tests and test infrastructure to test the features.</li><li>Work with hardware and manufacturing teams to bring new hardware to market.</li><li>Collaborate with hardware engineers to design optimal software control interfaces for managing hardware components.</li><li>Work with Customer Support Engineers and customers to analyze, mitigate and fix problems in customer networks.</li><li>Work with the System Test Engineers to analyze problems found in their tests and provide fixes for those problems. </li></ul>Qualifications <ul><li>BSc, MS or Ph.D. in Computer Science/Electrical Engineering/Computer Engineering with 2+ years of related post graduate work experience</li><li>Knowledge of C or C++ and Python.</li><li>Knowledge of UNIX or Linux</li><li>Understanding of IP networking and/or distributed systems is a plus</li><li>Experience working with low level hardware components is a plus </li><li>Applied understanding of software engineering principles</li><li>Strong problem solving and software troubleshooting skills</li><li>Ability to design a solution and implement features independently. </li><li>Ability to work in small teams.</li></ul> Additional Information The new hire base pay for this role has a pay range of $95,000 to $145,000. 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.

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 WithArista Networks is looking for world-class Senior/Lead software engineers to join our Extensible Operating System (EOS) software development team. As a core member of the EOS team, you will be part of a fast-paced, high caliber team-building features to run the world's largest data center networks. Your software will be a key component of Arista's EOS, Arista's unique, Linux-based network operating system that runs on all of Arista's data center networking products.The EOS team is responsible for all aspects of the development and delivery of software meant to run on the various Arista switches. You will work with your fellow engineers and members of the marketing team to gather and understand the functional and technical requirements for upcoming projects. You will help write functional specifications, design specifications, test plans, and the code to bring all of these to life. You will also work with customers to triage and fix problems in their networks. Internally, you will develop automated tests for your software, monitor the execution of those tests, and triage and fix problems found by your tests. At Arista, you will own your projects from definition to deployment, and you will be responsible for the quality of everything you deliver.What You’ll DoThis role demands strong and broad software engineering fundamentals, and ideally a good understanding of networking including capabilities like L2, L3, and fundamentals of commercial switching HW. Your role will not be limited to a single aspect of EOS at Arista, but cover all aspects of EOS.Responsibilities:<ul><li>Write functional specifications and design specifications for features related to forwarding traffic on the internet and cloud data centers.</li><li>Independently implement solutions to small-sized problems in our EOS software, using the C, C++, and python programming languages.</li><li>Write test plan specifications for small-sized features in EOS, and implement automated test programs to execute the cases described in the test plan.</li><li>Debug problems found by our automated test programs and fix the problems. </li><li>Work on a team implementing, testing, and debugging solutions to larger routing protocol problems.</li><li>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.</li><li>Work with the System Test Engineers to analyze problems found in their tests and provide fixes for those problems.</li><li>Mentor new and junior engineers to bring them up to speed in Arista’s software development environment.</li><li>Review and contribute to the specifications and implementations written by other team members.</li><li>Help to create a schedule for the implementation and debugging tasks, update that schedule weekly, and report it to the project lead. </li></ul>Qualifications <ul><li>BS Computer Science/Electrical Engineering/Computer Engineering + 8 years experience, or MS Computer Science/Electrical Engineering/Computer Engineering + 6 years experience, or Ph.D. in Computer Science/Electrical Engineering/Computer Engineering + 3 years experience or equivalent work experience</li><li>Knowledge of C, C++, and/or python.</li><li>Knowledge of UNIX or Linux.</li><li>Understanding of L2/L3 networking including at least one of the following areas is desirable:</li><li>IP routing protocols, such as RIP, OSPF, BGP, IS-IS, or PIM.</li><li>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.</li><li>Ability to utilize, test, and debug packet forwarding engine and a hardware component’s vendor provided software libraries in your solutions.</li><li>Infrastructure functions related to distributed systems such as messaging, signalling, databases, and command line interface techniques.</li><li>Hands on experience in the design and development of ethernet bridging or routing related software or distributed systems software is desirable.</li><li>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.</li><li>Applied understanding of software engineering principles.</li><li>Strong problem solving and software troubleshooting skills.</li><li>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.</li></ul> 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.

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 WithArista Networks is looking for world-class software engineers to join our Packet Forwarding Engines (PFE) and System software development team. As a core member of the PFE software and System software team, you will be part of a fast-paced, high caliber team building packet forwarding engine and system software to manage the world's most complex networking ASICs used to build the industry's largest data center networks. Your software will be a key component of Arista's Extensible Operating System (EOS), Arista's unique, Linux-based network operating system that runs on all of Arista's data center networking products. The Packet Forwarding Engines and System software team is responsible for all aspects of the development and delivery of our ASIC-based forwarding engine software. You will work with your fellow engineers to understand functional and technical requirements for upcoming projects. You will write functional specifications, design specifications, test plans, and the code to bring all of these to life. You will also work with customers to triage and fix problems in their networks. Internally, you will develop automated tests for your software, monitor the execution of those tests, and triage and fix problems found by your tests. At Arista, you will own your projects from definition to deployment, and you will be responsible for the quality of everything you deliver.What You’ll DoThis role demands strong software engineering fundamentals, and a good understanding of ASIC-based packet forwarding engines, hardware components (like temperature sensors, fan controllers, etc), board system management software, how the software that manages them is implemented, and the networks in which they are used. Your role will not be limited to any single aspect of managing ASIC-based packet forwarding engines at Arista, but cover all aspects of bringing up new hardware, developing all features requiring hardware forwarding support (including low-level hardware drivers), testing the software and hardware, and supporting our customers using the products you build.Responsibilities:<ul><li>Write functional specifications and design specifications for small-sized packet forwarding engine features and system software to manage hardware components.</li><li>Independently implement solutions to small-sized problems in our packet forwarding engine software and system software using the C, C++, and python programming languages.</li><li>Understand, utilize, test, and debug packet forwarding engine and hardware components vendor-provided software libraries in your solutions.</li><li>Write test plan specifications for small-sized packet forwarding engine features and system software, and implement automated test programs to execute the cases described in the test plan.</li><li>Debug problems found by our automated test programs and fix the problems.</li><li>Work on a team implementing, testing, and debugging solutions to larger packet forwarding engine software problems and system software issues.</li><li>Work 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.</li><li>Work with the hardware team and hardware component vendors to bring up initial versions of new systems using packet forwarding engines and system software.</li><li>Work with the diagnostic software team to design and develop software for the validation of new packet forwarding engine ASICs and hardware components.</li><li>Work with the System Test Engineers to analyze problems found in their tests and provide fixes for those problems.</li><li>Mentor new and junior engineers to bring them up to speed in Arista's software development environment.</li><li>Review and contribute to the specifications and implementations written by other team members.</li><li>Help to create a schedule for the implementation and debugging tasks, updating that schedule weekly, and reporting it to the project lead. </li></ul>Qualifications <ul><li>BSc, MS or Ph.D. in Computer Science/Electrical Engineering/Computer Engineering with 2+ years of related post graduate work experience</li><li>Experience or knowledge in the following:</li><li>C or C++</li><li>Knowledge of UNIX or Linux</li><li>Understanding of IP networking or distributed systems</li><li>Applied understanding of software engineering principles</li><li>Strong problem solving and software troubleshooting skills</li><li>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.</li></ul> Additional Information The new hire base pay for this role has a pay range of $95,000 to $145,000. 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.

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 WithArista Networks is looking for world-class software engineers to join our Extensible Operating System (EOS) software development team. As a core member of the EOS team, you will be part of a fast-paced, high caliber team-building features to run the world's largest data center networks. Your software will be a key component of Arista's EOS, Arista's unique, Linux-based network operating system that runs on all of Arista's data center networking products.The EOS team is responsible for all aspects of the development and delivery of software meant to run on the various Arista switches. You will work with your fellow engineers and members of the marketing team to gather and understand the functional and technical requirements for upcoming projects. You will help write functional specifications, design specifications, test plans, and the code to bring all of these to life. You will also work with customers to triage and fix problems in their networks. Internally, you will develop automated tests for your software, monitor the execution of those tests, and triage and fix problems found by your tests. At Arista, you will own your projects from definition to deployment, and you will be responsible for the quality of everything you deliver.What You’ll DoThis role demands strong and broad software engineering fundamentals, and ideally a good understanding of networking including capabilities like L2, L3, and fundamentals of commercial switching HW. Your role will not be limited to a single aspect of EOS at Arista, but cover all aspects of EOS.Responsibilities:<ul><li>Write functional specifications and design specifications for features related to forwarding traffic on the internet and cloud data centers.</li><li>Independently implement solutions to small-sized problems in our EOS software, using the C, C++, and python programming languages.</li><li>Write test plan specifications for small-sized features in EOS, and implement automated test programs to execute the cases described in the test plan.</li><li>Debug problems found by our automated test programs and fix the problems. </li><li>Work on a team implementing, testing, and debugging solutions to larger routing protocol problems.</li><li>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.</li><li>Work with the System Test Engineers to analyze problems found in their tests and provide fixes for those problems.</li><li>Mentor new and junior engineers to bring them up to speed in Arista’s software development environment.</li><li>Review and contribute to the specifications and implementations written by other team members.</li><li>Help to create a schedule for the implementation and debugging tasks, update that schedule weekly, and report it to the project lead. </li></ul>Qualifications <ul><li>BSc, MS or Ph.D. in Computer Science/Electrical Engineering/Computer Engineering with 2+ years of related post graduate work experience</li><li>Knowledge of C, C++, and/or python.</li><li>Knowledge of UNIX or Linux.</li><li>Understanding of L2/L3 networking including at least one of the following areas is desirable:</li><li>IP routing protocols, such as RIP, OSPF, BGP, IS-IS, or PIM.</li><li>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.</li><li>Ability to utilize, test, and debug packet forwarding engine and a hardware component’s vendor provided software libraries in your solutions.</li><li>Infrastructure functions related to distributed systems such as messaging, signalling, databases, and command line interface techniques.</li><li>Hands on experience in the design and development of ethernet bridging or routing related software or distributed systems software is desirable.</li><li>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.</li><li>Applied understanding of software engineering principles.</li><li>Strong problem solving and software troubleshooting skills.</li><li>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. </li></ul>Additional Information The new hire base pay for this role has a pay range of $95,000 to $145,000. 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.

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 WithArista Networks is looking for world-class Senior/Lead software engineers to join our Packet Forwarding Engines (PFE) and System software development team. As a core member of the PFE software and System software team, you will be part of a fast-paced, high caliber team building packet forwarding engine and system software to manage the world's most complex networking ASICs used to build the industry's largest data center networks. Your software will be a key component of Arista's Extensible Operating System (EOS), Arista's unique, Linux-based network operating system that runs on all of Arista's data center networking products.The Packet Forwarding Engines and System software team is responsible for all aspects of the development and delivery of our ASIC-based forwarding engine software. You will work with your fellow engineers to understand functional and technical requirements for upcoming projects. You will write functional specifications, design specifications, test plans, and the code to bring all of these to life. You will also work with customers to triage and fix problems in their networks. Internally, you will develop automated tests for your software, monitor the execution of those tests, and triage and fix problems found by your tests. At Arista, you will own your projects from definition to deployment, and you will be responsible for the quality of everything you deliver.What You’ll DoThis role demands strong software engineering fundamentals, and a good understanding of ASIC-based packet forwarding engines, hardware components (like temperature sensors, fan controllers, etc), board system management software, how the software that manages them is implemented, and the networks in which they are used. Your role will not be limited to any single aspect of managing ASIC-based packet forwarding engines at Arista, but cover all aspects of bringing up new hardware, developing all features requiring hardware forwarding support (including low-level hardware drivers), testing the software and hardware, and supporting our customers using the products you build.Responsibilities:<ul><li>Write functional specifications and design specifications for small-sized packet forwarding engine features and system software to manage hardware components.</li><li>Independently implement solutions to small-sized problems in our packet forwarding engine software and system software using the C, C++, and python programming languages.</li><li>Understand, utilize, test, and debug packet forwarding engine and hardware components vendor-provided software libraries in your solutions.</li><li>Write test plan specifications for small-sized packet forwarding engine features and system software, and implement automated test programs to execute the cases described in the test plan.</li><li>Debug problems found by our automated test programs and fix the problems.</li><li>Work on a team implementing, testing, and debugging solutions to larger packet forwarding engine software problems and system software issues.</li><li>Work 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.</li><li>Work with the hardware team and hardware component vendors to bring up initial versions of new systems using packet forwarding engines and system software.</li><li>Work with the diagnostic software team to design and develop software for the validation of new packet forwarding engine ASICs and hardware components.</li><li>Work with the System Test Engineers to analyze problems found in their tests and provide fixes for those problems.</li><li>Mentor new and junior engineers to bring them up to speed in Arista's software development environment.</li><li>Review and contribute to the specifications and implementations written by other team members.</li><li>Help to create a schedule for the implementation and debugging tasks, updating that schedule weekly, and reporting it to the project lead. </li></ul>Qualifications <ul><li>BS Computer Science/Electrical Engineering/Computer Engineering + 8 years experience, or MS Computer Science/Electrical Engineering/Computer Engineering + 6 years experience, or Ph.D. in Computer Science/Electrical Engineering/Computer Engineering + 3 years experience, or equivalent work experience</li><li>Experience or knowledge in the following:</li><li>C or C++</li><li>Knowledge of UNIX or Linux</li><li>Understanding of IP networking or distributed systems</li><li>Applied understanding of software engineering principles</li><li>Strong problem solving and software troubleshooting skills</li><li>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.</li></ul> 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.

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 DescriptionWhat You’ll DoWe are looking for an experienced, self-motivated, and team-oriented Hardware Engineering Manager to drive the creation of industry-leading Cloud Networking Ethernet switches. Arista takes pride in designing and manufacturing the highest density and greatest bandwidth products in the market. As an Arista Hardware Engineering Manager, you will lead multiple cross-functional teams in the design and verification of an industry-leading portfolio of Networking Ethernet switches.Provide technical guidance and directions to hardware engineers, to resolve complex Hardware bring-up and cross functional problems.Work with product management teams to translate high-level product direction into future system designs with detailed, executable steps for cross-functional teams.Drive Vendor roadmaps of key components (ASICs, connectors, PCB vendors, etc.) to advance Arista’s Hardware designs, as well as align with internal product roadmaps.Communicate project status and changes to mitigate unexpected issues.Hardware schematic entry, Layout supervision, board bring-up, and cross functional system debug when resource gaps exist.Participate in schematic and board design reviews.Assist in analyzing Signal Integrity and Power Integrity simulation and measurement results.Develop and communicate priorities across a portfolio of projects.Drive the design of high-quality products with high first-pass yields at manufacturing.Ensure the prototype manufacturing infrastructure and capacity meets product portfolio needs.Act as the initial point of contact for customer escalations, and supervise resolution.Manage, mentor, and motivate a team of hardware engineers with a diverse range of experience levels: from new college grads to experienced veterans of the industry.Identify, define, and implement new processes and tools that help improve productivity and efficiency within the Hardware team.QualificationsBS or MS in Electrical Engineering.10+ years of relevant experience in networking hardware design, particularly in the Enterprise market: Access points, Access Layer POE Switches, and Aggregation layer Optics switches.Proven experience leading hardware engineering teams across multiple simultaneous projects. Prior technical management experience is a must.Proficient with high layer count printed circuit boards and high-speed design, with background experience or knowledge of key protocols such as: Ethernet, SMBus, SPI, PCIe, POE, WiFi, PTP, MDIO.Expertise in Designing For Manufacturability (DFM) and collaborating with Contract Manufacturers (CM), Original Design Manufacturers (ODM) and Joint Design Manufacturers (JDM).Demonstrated success in taking products from concept through to production.Strong communication skills and experience in guiding direct reports, working with other managers or other teams, and interfacing with executive leadership.Ability to translate high-level product direction into actionable steps.Effective project management skills, including tracking execution and implementing corrective actions.Experience with embedded x86/ARM system design, gigabit+ signaling, high-speed buses, and regulatory compliance.Skilled in technical documentation, schematic design, CAD collaboration, and software engineering collaboration.Familiarity with signal integrity and power integrity concepts and tools, such as: impedance, PDN’s, differential routing, insertion loss, S-parameters, TDR’s, VNA’s.Background experience with scripting, and general software development is a strong plus.This is a majority onsite role at our Santa Clara HQ, with minimal opportunities for remote work.Compensation InformationThe new hire base pay for this role has a salary range of $152,000 to $211,000. 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. US-based employees are also entitled to benefits including medical, dental, vision, wellbeing, tax savings and income protection. The recruiting team can share more details during the hiring process specific to the role and location.Additional InformationArista Networks is an equal opportunity employer. Arista makes all hiring and employment-related decisions in a non-discriminatory manner without regard to race, color, religion, sex, sexual orientation, gender identity, national origin or any other factor determined to be unlawful under applicable federal, state, or local law. All your information will be kept confidential according to EEO guidelines.
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