Linux Engineer

Cloud EOS Team

·        Arista Networks is the leader in building software driven cloud networks for today’s datacenter, cloud and campus environments. Arista delivers the most efficient, reliable and high performance Universal Cloud Network architectures based on 10G, 25G, 40G, 50G, 100G and 400G platforms delivered with an extensible operating system – Arista EOS®. Arista EOS is built on an open, programmable, and resilient state-sharing architecture that delivers maximum system uptime, reduces CAPEX and OPEX by simplifying IT operations and enables business agility.

·        We are building disruptive products and services that deliver highly automated networks that interconnect and secure connectivity between various global locations. As a part of the team you will be exposed to wide variety of technologies like EOS (Extensible Operating System), multithreaded, multicore software forwarding based on DPDK, public cloud (AWS, Azure, GCP) infrastructure, Path selection, NFV, Containers, Network Segmentation, Virtualization, microservice based architectures, CI/CD pipelines, and Terraform-based declarative provisioning models. As a core member of the CloudEOS team, you will be part of a fast paced, high-caliber team building cutting edge software products for Cloud-enabled WAN connectivity. The team is responsible for all aspects of the development and delivery of control plane, software data plane, and management platform/APIs/services.

·        Arista provides an open Engineering-driven culture which fosters innovation and enables engineers to Learn, Lead and Thrive. Our adoption of modern software tools, methodologies and processes and emphasis on automation enables our engineers to focus their energies on the truly complex problems and be among the most productive in the industry. Arista's products are purpose built with the scale, performance and quality required to operate in some of the most demanding environments - this provides engineers the platform and rigour to learn and gain experience in building complex, scalable software systems.

Basic qualifications

·        Bachelor's/Master's degree in Engineering

·        3+ years of experience working as a Systems Software Development Engineer

·        Proficiency in C++/C programming language

·        Software Development experience with Linux

Preferred qualifications

·        Experience with DPDK, Software Forwarding, Qos.

·        Python and/or Golang development experience

·        Strong communication skills and the ability to work in a team environment

·        Experience working through the complete software development life cycle right from requirements gathering to delivering the fully developed feature.

·        Strong software debugging skills especially in embedded systems.

·        Experience in Network Systems Software development is a plus

EOS Routing Team

·        Arista Networks is the leader in building software driven cloud networks for today’s datacenter, cloud and campus environments. Arista delivers the most efficient, reliable and high performance Universal Cloud Network architectures based on 10G, 25G, 40G, 50G, 100G and 400G platforms delivered with an extensible operating system – Arista EOS®. Arista EOS is built on an open, programmable, and resilient state-sharing architecture that delivers maximum system uptime, reduces CAPEX and OPEX by simplifying IT operations and enables business agility.

·        The EOS Routing PI team is responsible for developing routing protocols like BGP, OSPF and ISIS and Data Center and SP technologies like MPLS, Segment Routing and EVPN. A unique feature of the Arista routing team is that the routing software is common across Campus, Data Center and Service Provider routing features. This is a global team that spreads multiple geographies working on cutting edge features that get deployed in the largest Cloud titan, Service Provider, Enterprise and Campus networks.

·        Arista provides an open Engineering-driven culture which fosters innovation and enables engineers to Learn, Lead and Thrive. Our adoption of modern software tools, methodologies and processes and emphasis on automation enables our engineers to focus their energies on the truly complex problems and be among the most productive in the industry. Arista's products are purpose built with the scale, performance and quality required to operate in some of the most demanding environments - this provides engineers the platform and rigour to learn and gain experience in building complex, scalable software systems.

Basic qualifications

·        Bachelor's/Master's degree in Engineering

·        3+ years of experience working as a Systems Software Development Engineer

·        Proficiency in C++/C and Python programming languages

·        Experience with routing protocols and/or Data Center/SP routing features

·        Software Development experience with Linux

Preferred qualifications

·        Strong communication skills and the ability to work in a team environment

·        Experience working through the complete software development life cycle right from requirements gathering to delivering the fully developed feature.

·        Strong software debugging skills especially in embedded systems.

·        Experience in Network Systems Software development is a plus

EOS Layer 2 and Infra PI Team

·        Arista Networks is the leader in building software driven cloud networks for today’s datacenter, cloud and campus environments. Arista delivers the most efficient, reliable and high performance Universal Cloud Network architectures based on 10G, 25G, 40G, 50G, 100G and 400G platforms delivered with an extensible operating system – Arista EOS®. Arista EOS is built on an open, programmable, and resilient state-sharing architecture that delivers maximum system uptime, reduces CAPEX and OPEX by simplifying IT operations and enables business agility.

·        The EOS Layer 2 PI and Infra team is responsible for working on platform independent features on Arista’s EOS working alongside the EOS Routing team. The team is responsible for building innovative, scalable solutions in areas including EOS infrastructure, Layer 2 protocols like 802.1X, Macsec, DHCP, RADIUS etc. A unique feature of the Arista’s Layer 2 PI and Infra team is that the software developed is common across Campus, Data Center and Enterprise features. This is a global team that spreads across multiple geographies working on cutting edge features that get deployed in the largest Cloud titan, Service Provider, Enterprise and Campus networks.

·        Arista provides an open Engineering-driven culture which fosters innovation and enables engineers to Learn, Lead and Thrive. Our adoption of modern software tools, methodologies and processes and emphasis on automation enables our engineers to focus their energies on the truly complex problems and be among the most productive in the industry. Arista's products are purpose built with the scale, performance and quality required to operate in some of the most demanding environments - this provides engineers the platform and rigour to learn and gain experience in building complex, scalable software systems.

Basic qualifications

·        Bachelor's/Master's degree in Engineering

·        3+ years of experience working as a Systems Software Development Engineer

·        Proficiency in C++/C and Python programming languages

·        Software Development experience with Linux

Preferred qualifications

·        Experience with Layer 2 protocols like 802.1X, AAA, Macsec

·        Strong communication skills and the ability to work in a team environment

·        Experience working through the complete software development life cycle right from requirements gathering to delivering the fully developed feature.

·        Strong software debugging skills especially in embedded systems.

·        Experience in Network Systems Software development is a plus

• Enterprise Network Implementation for Global Enterprise customers.
• Extensive experience in a network implementation environment gained in an ISP or telco or enterprise environment.
• Good technical knowledge and practical experience of BGP, OSPF routing protocols & switching technology.
• Conversant in best practices appropriate to network design and security.
• Understanding of hardware and software performance and scaling limitations.
• Network implementation, and management using Cisco Routers & switches ( Nexus & Catalyst), Juniper M and T series routers, and Aruba Wireless.
• Excellent communication and interpersonal skills – confidence and professionalism both in working with multinational project teams and with clients on various levels of the organisation, from technical audiences to senior management
• Analytical and critical thinking; innovative problem-solving capability for complex customer requirements
• Ability to work under pressure from both customers and internal stakeholders and produce solution designs that are deliverable

Experience:
• A minimum of 4 years’ total experience in the areas of Networking and Telecommunications technologies
• At least 2 years’ experience in dealing with large, corporate customers in a technical solution Implementation profile.

Strong programming (Java, C/C++) and troubleshooting skill

Experience on Android telephony, connectivity framework

RIL 

Familiarity and support of PTCRB/GCF certification process.

Knowledge a cellular test equipment and network IOT

IMS/Volte/SMS over IMS/Video calling and SIP signaling – Desired

Knowledge of QUALCOMM tools, QXDM, QRCT, ER & Analysis of logs.

Preferred - knowledge on 3GPP specs and GSM/GPRS/EGPRS/WCDMA/UMTS/LTE/TD-SCDMA standards

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.

• 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

As an IT Infrastructure Architects design and implement information systems that support an enterprise infrastructure. You will provide the necessary technical infrastructure for the development of new and existing infrastructure technologies and system requirements. 

Improve efficiency and streamline operations. enhance design specs, create technical documentation, implement control concepts and deliver expected outcomes. Collect performance data to monitor systems resource usage and failures rates and provide solutions and recommend changes. ensure scalability and anticipate capacity growth through careful planning and awareness of industry, business and client’s growth trends. Design activities rely on accurate data, sensible KPIs and performance metrics to improve processes and bridge gaps

Primary Responsibilities:

Conducting research on emerging and existing technologies. Recommend system alternative technologies and infrastructure development efforts that increase infrastructure flexibility, reliability, stability, scalability, resilience, availability, performance and cost effectiveness. All collective research efforts will contribute to the creation of architectural road maps that leverage software and cloud technologies. Research customer interaction, policy adherence, enterprise processes. May act as the subject matter expert of architectural virtualization.

Needs to guide in execution of Incident, Change, Release, Problem, Performance, and Availability Management

Security of all infrastructure is of paramount importance and is periodically audited, monitored and updated in keeping up with latest threats and risks.

Identifying best practices for future implementation. Architects provide feedback to the enterprise and incorporate all gathered information into future integration plans.

Provides DevOps thought leadership and mentoring in both advisory and delivery contexts, focusing on the requirements of Technology and Business and how these are best served by continuous improvements to our delivery approach

Required Technical skills and Experience

• Over 10+ years of experience as IT Infrastructure Architect
• Bachelor / Masters Degree in Computer Science, Information Technology or related field
• Must have experience in Infrastructure architecting on AWS/ Azure/ Google cloud.
• Should have a very good understanding of Cloud Native services (IaaS, PaaS, SaaS) platforms for application deployment and scalability in a cost effective manner, addresses scalability, availability, service continuity (DR), performance and security requirements. auto-scaling and self-healing.
• Has hands on experience with cloud orchestration using Kubernetes or apache Mesos on marathon would be an advantage
• Evangelizing microservices-based architectures using containerized applications; help to drive strategy and implementation of cloud native infrastructure
• Sound Knowledge of RDBMS, preferably with MYSQL Mongo, Elasticsearch, Redis. Working knowledge of, CDN/WAF 
• Proven expertise on Linux, and DevOps tools such as Git, Jenkings, maven, Bamboo Docker, Puppet, Ansible,Kubernetes,terraform. Elastic Beanstalk, Openshift
• Infrastructure security (VPC, tunneling, API management, Governance) and networking security solutions like routing, switching, Firewalls etc.
• Good debugging skills on Linux, Apache, Nginx, PHP, MYSQL and cloud-based application and administration of RHEL, CentOS/Ubuntu
• Experience in Cloud scale APM and Monitoring Tools such as ELK ,Splunk, Nagios, Graffana, XMON Datadog, Dynatrace, Appdynamics, Cloud Monitoring.
• Troubleshoot and debug environment and infrastructure problems found in the production and non-production environments.
• Implements security improvements by assessing current situations; evaluating trends; anticipating requirements.
• Determines security violations and inefficiencies by conducting periodic audits.
• Upgrades system by implementing and maintaining security controls.
• Must have knowledge of leading storage backup solutions.
• Experience with one or more Unix shell scripting languages (Bash, C-Shell)

• Team mentoring and support for ramping up new engineers
• Provide leadership in planning, defining requirements, scoping efforts, and setting appropriate milestones
• Using a data-driven process/mindset, author technical content to support the incident response process (e.g. postmortem/root cause analysis) and develop interim solutions to prevent or quickly resolve issues/problems the next time.
• Experience with networking technologies (routing, switching, IP addressing, DNS, Load balancers, etc.) Knowledge of :  - File systems, NFS, CIFS, iSCSI - IPv4 networking, including TCP/IP, SMTP/POP/ IMAP, HTTP/S, LDAP – DNS
• Ability to work independently while tackling complex problems
• Passionate to palm ownership and responsibility of the systems - 24x7