System Administrator

About us:

Arista Networks was founded to pioneer and deliver software driven cloud networking solutions for large datacenter storage and computing environments. Arista's award-winning platforms, ranging in Ethernet speeds from 10 to 400 gigabits 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.

About the job

Arista 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.

This role demands strong and broad software engineering fundamentals, and 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:

• Write functional specifications and design specifications for features related to forwarding traffic on the internet and cloud data centers.
• Independently implement solutions to small-sized problems in our EOS software, using the C, C++, and python programming languages.
• Write test plan specifications for small-sized features in EOS, 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.
• 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.
• 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.
• Review and contribute to the specifications and implementations written by other team members.
• Help to create a schedule for the implementation and debugging tasks, update that schedule weekly, and report it to the project lead.

Qualifications:

• BS Computer Science/Electrical Engineering/Computer Engineering 3-10 years experience, or MS Computer Science/Electrical Engineering/Computer Engineering + 5 years experience, Ph.D. in Computer Science/Electrical Engineering/Computer Engineering, or equivalent 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:

1. IP routing protocols, such as RIP, OSPF, BGP, IS-IS, or PIM.
2. 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, signalling, 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.
• 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.

Resources:

• Arista's Approach to Software with Ken Duda (CTO): https://youtu.be/TU8yNh5JCyw
• Additional information and resources can be found at https://www.arista.com/en/

About the role

Experience in Firmware/Software programming in embedded Linux & RTOS based application development. Candidate must have a very good understanding of ARM processor, hardware and custom board or product development experience.

Roles and Responsibilities:

• Design, code and integrate software for an embedded Linux/RTOS targeted application (applications, drivers, framework)
• Customization, deployment and maintenance of Linux distribution
• Interact with Linux kernel, integrate new device drivers Improvement and maintain existing software components
• Perform unit test, Integration test, verification and validation of the product developed.
• Assist with the hardware design surrounding the processor
• Document the projects according to standards (protocols, architecture, technical specifications, etc.)

Qualifications:

• Bachelor degree in Electronics or computer science engineering.
• Minimum 6 - 12 years of experience in embedded Linux programming.

Specific skills:

• Expert in C programming with RTOS.
• Hands-On experience with Protocol development.
• Nice to have Protocol development experience such as USB or DP, HDMI or equivalent.
• System level design and understanding of overall system
• Strong knowledge of Linux, ARM processor architecture with SOC, FPGA interface is a plus.
• Hand-on experience on Linux kernel and device-driver development and debugging.
• Knowledge/Experience of TCP/IP, Network programming.
• Ability to write effective and reusable code according to best practices.
• Must be a dynamic, autonomous, and team-oriented individual.
• Knowledge of hardware and low-level development is an asset.

Installation, Configuration and Troubleshooting of Network Equipment e.g CCTV Camera, Network Switch, Router, Wi-fi, Server and Desktop computer etc. Willing to travel entire India based on project requirement.

• Bachelor’s degree in Electrical or Electronics Engineering with 1-3 years of relevant experience.
• Highly experienced in Embedded C, C++ coding as per MISRA standards
• Experience in firmware programming for 8 bit, 16 bit and 32 bit controllers.
• Knowledgeable in Linker Scripts, Make files & firmware debugging using JTAG or on the UART console. 
• Experienced in Communication peripherals like SPI, UART, I2C, CAN, etc.
•  

• Ideation, designing, prototyping, and developing as per product requirements.

• Expertise in system architecture and design for Embedded software systems.
• Develop modular Embedded Code to port into different projects.
• Experience on Real Time Systems and Scheduling mechanisms
• Development experience in "middleware" / “application” / Low layer.
• Experience with developing embedded code for networking technologies like TCP/IP and UDP would be a plus.
• Document state machine diagrams, flow charts to understand the system architecture
• Working closely with Design teams to understand Hardware Implementation.
• Develop Test methods, in some cases automated test cases to test the firmware code and support hardware engineers.
• Use Debuggers, oscilloscopes, power supplies, and other necessary electrical tools to debug the code for problem-solving.
• Excellent reading skills for complete understanding of technical documents such as Processor Architecture Specifications and MCU hardware manuals, schematics etc.
• Ability to generate ideas in response to complex issues and execute on solutions.
• Python programming is a big plus.

• Support for Incident and Request management tasks as assigned.
• Administration and understanding of the following network services to support Incident and Request tasks as assigned:
• Palo Alto Firewalls
• LAN Routing and Switching
• Microsoft Azure Networking – Vnets, Express Route, Vnet Peering, VPN Gateways
• LAN to LAN VPN Tunnels
• Arista Network devices
• Work with Networking Monitoring tools such as one or more of the following: Solar Winds, Splunk, Prime, NetMRI, Nagios
• Work directly with telecom carriers and Network infrastructure maintenance providers as needed, such as Verizon, Tata, Bharti, and Cisco.
• Maximize network performance by monitoring performance, troubleshooting network problems and outages, scheduling upgrades, and collaborating with network architects on network optimization
• Supports routing and switching and work on BGP, OSPF protocols
• Support China retail store infrastructure and data center through on-call rotations

QUALIFICATIONS:

• Graduate or above
• 6-7 years experience in LAN/WAN Routing including 2 or more years of LAN/WAN Administration experience within a multi-platform technical environment.
• In-depth understanding of voice and/or data technologies and subject matter expert in at least one area.
• Cisco Certified or equivalent combination of knowledge and experience.
• Understanding on IPsec, VPNs, GRE, NAT/PAT over varied platforms
• Expert knowledge of all LAN switching technologies eg Spanning Tree, VLAN management, and VTP concepts on Cisco, Nexus, and Arista
• Good understanding of MPLS routing and OSPF routing

Software Engineer(Layer 2/Layer 3)

Location : Gurgaon (WFH currently)

Experience/ Skills Required : 5 to 10 years

To be successful in this role you should be well versed with the concepts of networking and comfortable in C programming in a linux environment for embedded software. As we use Linux, experience with this operating system is a mandatory requirement, knowledge and experience on OpenWrt is a bonus.  Working experience with router software development for layer 3 and layer 4 features.

Domain knowledge required: IPv4, TCP/UDP, IPv6, NAT, Firewall (iptables), DHCPv4, DHCPv6, IPv6 prefix delegation, Port forwarding, Source based routing, Policy based routing, L3 QoS, IGMP proxy, IPv6 MLD snooping, DNS, DNS proxy. Knowledge on VoIP is a bonus. 

Management methods: TR069, SNMPv2, CLI.    

Operating system: Linux, OpenWrt  

Programming languages: C(must have), Python 

Working for us means having a healthy interest in Software but most of all, you like to work in a team. You like to take initiative and have the “just do it” approach. Having the right mentality and attitude are more important for us than a degree. Dedication, investigation and responsibility are keywords for us.   Preferred years of experience in industry/technology: 5-10 years.   

Role:

As a Software Engineer you develop new software features and solutions for our fibre connectivity product portfolio. The position offers a wide range of possibilities to work with everything from low-level Linux drivers to high-level applications. You develop for various protocols and HW interfaces, often in complex network scenarios in combination with customer specific requirements. The team is responsible for all SW development for existing and new Home Gateways. This means development of Linux drivers, network functionality, remote Management (TR-069) and VoIP application (sipapp). The development is mainly done in C and in Linux environment, knowledge in Python is an add-on. Products and development are realized in Agile.

• Perform technical feasibility studies of new technologies and architectures, including evaluation of OTS cloud offering.
• Generate entire software image for the target device, including the kernel, device drivers, libraries, and application software, and the bootloader for proprietary IOT connectivity device(s).
• Software packaging with RPM building and management
• Define the process to upgrade the new Linux package to existing hardware at customer premises
• Configuration and Troubleshoot of the proprietary IOT connectivity devices for internal R&D teams during their development and verification
• Automate the creation and distribution of keys and certificates
• Understand, implement, and automate security controls for IoT connectivity devices.
• Tune server and application-level performance monitoring and alerting.
• Help define our roadmap and architecture based on technology and business needs, considering architectural issues and tradeoffs
• Understand and manage integration points with other systems that interface with your applications
• Supports development of project plans, including scope, budget, schedules, and risk management.
• Works closely with the business analysts, software development and verification team, the functional manager, and the program manager.
• Collaborate and work with global teams in multiple locations.
• Interface with Global Privacy and Security team for the IoT Gateway understand security risks and recommendations and provide solutions to mitigate the security risks

• Bachelor’s degree in Computer Networking / Computer Science / Software Engineering or a related field
• 12+ years of hands-on experience in Networking, shell scripting, and Linux internals, with a development background.
• Strong understanding of Networking concepts like VPC, Route tables, Host base router firewall, SSH, NAT, DNS, DHCP, SNMP, Virtual IPs, VPN
• Linux System Administration and Networking work experience
• Configuring Firewalls(IP tables/firewall) and security software
• Able to generate Linux packages, and configure based on business needs.
• Passion for cybersecurity. Ability to build secured Linux packages with antivirus and security patches.
• Shell, Python scripting experience
• Basic SQL skills
• Ability to work with cross-functional and remote teams. Must be able to communicate in English, both written and verbal.
• Interpersonal skills to effectively collaborate with vendors and customers.

• Experience with Agile Scrum
• Development background in Java/C++
• DevOps knowledge
• Knowledge on javascript