Software Engineer (Physical Network Layer/PHY/Serdes)

Arista Networks; Bengaluru; On-site; INR 4,000,000 - 7,000,000; Full time

Job summary

Arista Networks in Bengaluru is seeking world-class Senior/Lead Layer1 software engineers to build and optimize software that controls the physical layer of networking hardware. You will implement features spanning from 1GBASE-T to high-speed optics, ensuring robust connectivity across platforms.

The role emphasizes design, debugging, and performance tuning with close collaboration with optics and hardware teams.

Qualifications

• BS in CS/EE/CE, or equivalent
• 6+ years of relevant work experience
• Expert knowledge of C or C++ and Python
• Experience with low-level hardware components
• Knowledge of digital communication technologies (modulation, encoding)
• Knowledge of UNIX or Linux
• Strong problem-solving and debugging skills
• Demonstrated technical leadership and mentoring ability
• Understanding of IP networking or distributed systems is a plus

Responsibilities

• Interface with customers, product management and hardware engineers to ideate Layer1 features
• Architect, design and manage development of Layer1 features
• Develop and maintain features using C, C++ and Python; build tests and infrastructure
• Work with hardware and manufacturing teams to bring Layer1 components to market
• Collaborate with hardware engineers to design optimal software interfaces
• Provide technical leadership across features and projects
• Collaborate with Customer Support to analyze and fix issues in networks
• Mentor new and junior engineers in Arista's software environment

Skills

C/C++

Python

Low-level hardware

UNIX/Linux

IP networking

Technical leadership

Education

BS in Computer Science / Electrical Engineering / Computer Engineering

Job description

Arista Networks is an industry leader in data-driven, client-to-cloud networking for large data center, campus and routing environments. Arista is a well-established and profitable company with over $8 billion in revenue. Arista’s award-winning platforms, ranging in Ethernet speeds up to 800G bits per second, redefine scalability, agility, and resilience. Arista is a founding member of the Ultra Ethernet consortium. We have shipped over 20 million cloud networking ports worldwide with CloudVision and EOS, an advanced network operating system. Arista is committed to open standards, and its products are available worldwide directly and through partners.

At Arista, we value the diversity of thought and perspectives each employee brings. We believe 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 the Great Place to Work Survey for Best Engineering Team and 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 quality and performance standards in everything we do.

Who You’ll Work With

Arista Networks is looking for world-class Senior/Lead Layer1 software engineers.

As a Layer1 software engineer, you will get to work on software that manages the physical layer, where packets meet the outside world. Stable and reliable physical connectivity is critical for any network and that is your challenge. You will get to write control software that brings to life everything from the ubiquitous 1GBASE-T connectors to 1.6T long reach optics that provide fiber connectivity across continents. Your software will need to work across a wide variety of forwarding engines, connectors and interface chips called gearboxes, which allow our hardware platforms to support diverse physical connectivity options within a product family. You will build instrumentation and telemetry tools that track physical link health parameters reported by the Layer1 components and enable operators to monitor and troubleshoot their links effectively. You will also work closely with our Optics teams to define standards for new media and bring them to market.

Arista Software Engineering roles demand a strong and broad software engineering background. While the primary focus area for this role is Layer1 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, which provides opportunities for increased responsibilities, and to expand expertise into new areas.

What You’ll Do

Interface with customers, product management and hardware engineers to come up with innovative new Layer1 features.

Architect, design and manage the development of these features.

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.

Work with hardware and manufacturing teams to bring new Layer1 components like Phys and Transceivers to market.

Collaborate with hardware engineers to design optimal software control interfaces for managing Layer1 components.

Provide technical leadership across features, projects and tools.

Work with Customer Support Engineers and customers to analyze, mitigate and fix problems in customer networks.

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.

Qualifications

BS Computer Science/Electrical Engineering/Computer Engineering 6+ years relevant work experience.

Expert knowledge of C or C++ and Python.

Experience working with low level hardware components

Knowledge of digital communication technologies like modulation and signal encoding schemes

Knowledge of UNIX or Linux

Understanding and ability to apply software engineering principles

Strong problem solving and software troubleshooting skills

Demonstrated technical leadership, strong communication skills, and the ability to work in a small team environment

Ability to design a solution and implement features independently

Understanding of IP networking and/or distributed systems is a plus

Additional Information

Arista stands out as an engineering-centric company. Our leadership, including founders and engineering managers, are all engineers who understand sound software engineering principles 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.

Our engineers have access to every part of the company, 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.