Networking engineer

Essential Responsibilities

• Primary responsibility would be overseeing complete Load balancing and Network Packet Broker Operation.
• Load Balancing Engineer with hands-on experience on F5 BIG-IP GTM and LTM devices as well as Citrix NetScaler.
• Hands on experience in migrating other load balancer vendors to F5 Load Balancer
• Must be an expert in F5 and Citrix Load Balancing platforms.

Roles and Responsibilities

• Should analyse, design, implement and maintain the networks F5 and Citrix NetScaler Load Balancer infrastructure.
• Should inspect data packets and TCP, IP flow in network and application flow.
• Should possess a working knowledge of switches, routers, and firewall concepts.
• Should be able to configure and maintain F5 and Citrix Load Balancers, load balancing best practices.
• Should also take the responsibility to upgrade network operating systems software and hardware as per the management requirements.
• Must ensure that the plans are integrated effectively with the other aspects of the technical infrastructure.
• Extensive knowledge of Load balancing technology including algorithms and health check options.
• Knowledge and experience regarding F5 BIG-IP LTM VIP configuration with health check.
• Knowledge and experience with F5 BIG-IP GTM Wide IP configuration.
• F5 BIG-IP iRule programming and troubleshooting experience.
• Extensive knowledge of Citrix NetScaler VIP configuration with Knowledge and experience with Citrix NetScaler Global Load Balancing (Gslb) configuration.

Position – SRE Engineer

Location – Navi Mumbai

Who are we

Based out of IIT Bombay, HaystackAnalytics is a HealthTech company creating clinical genomics products, which enable diagnostic labs and hospitals to offer accurate and personalized diagnostics. Supported by India's most respected science agencies (DST, BIRAC, DBT), we created and launched a portfolio of products to offer genomics in infectious diseases. Our genomics-based diagnostic solution for Tuberculosis was recognized as one of the top innovations supported by BIRAC in the past 10 years, and was launched by the Prime Minister of India in the BIRAC Showcase event in Delhi, 2022.

About the Role:

We are seeking a highly skilled Site Reliability Engineer (SRE) to join our infrastructure team. The ideal candidate will bring deep expertise in Linux systems, cloud infrastructure automation, and network administration, with a strong focus on reliability, scalability, and performance. ensuring firewall/network security compliance.

Key Responsibilities:

• Develop and maintain automation scripts (Bash, Python, etc.) for system and cloud infrastructure operations.
• Manage, monitor, and troubleshoot Linux servers  in production environments
• Familiarity with Network tools in Linus to triage  network connectivity  and performance issues .
• Configure, maintain, and secure network infrastructure including switches, routers, and firewalls.
• Design and execute Network Continuity Plans (NCP) and disaster recovery strategies.
• Collaborate with cross functional team for triaging and resolving site specific issues in production  related to  server deployment , SOP adherence , Triage and defect resolution
• Collaborate with developers and DevOps teams to define SLAs, SLOs, and error budgets.
• Implement proactive monitoring and alerting using modern observability tools.
• Participate in on-call rotations and incident response processes.
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Objectives of this Role:

• Build, automate, and manage scalable infrastructure and deployment pipelines to support development and production environments.
• Enable rapid, secure, and reliable software delivery across engineering teams.
• Ensure system availability, performance, and security in cloud and containerized environments.
• Implement and enforce best practices in CI/CD, observability, and incident response.
• Collaborate with cross-functional teams including software developers, QA, and product managers.
• Proactively identify and automate manual processes to improve engineering efficiency.
• 3–7 years of experience as an SRE, DevOps, or Systems/Network Engineer.
• Strong scripting skills (e.g., Bash, Python, or Go).
• Proficiency in Linux administration and performance tuning.
• Deep understanding of TCP/IP, routing, DNS, firewalls, and networking protocols.
• Hands-on experience managing network infrastructure and firewall rules (e.g., iptables, pfSense, Palo Alto, etc.).
• Docker (multi-stage builds, docker-compose)

Soft Skills

• Proactive problem-solving and ownership mindset
• Strong documentation and communication skills
• Ability to mentor junior engineers
• Curiosity to learn and experiment with emerging DevOps tools

Preferred Qualifications:

• Certifications such as CKA/CKAD, RHCE, AWS Certified SysOps Administrator, or Cisco CCNA/CCNP.
• Experience with service meshes (e.g., Istio), observability stacks (e.g., Prometheus, Grafana), or network policy management (e.g., Calico, Cilium).
• Exposure to secure DevOps practices and compliance standards (e.g., ISO, NIST).

To know more about us – https://haystackanalytics.in

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

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 this role:

• You will be working with the WiFi team at Arista, developing cutting edge and next generation WiFi solutions in a fast-paced environment. The WiFi team is responsible for the end to end development of the Cloud managed WiFi product portfolio of Arista. This specific position is for the WiFi AccessPoint team.
• As a core member of the AccessPoint team, you will be working closely with relevant teams to understand product requirements, design the solution, build the software and deliver it for final validation and customer deployment.
• You will also keep track of new and emerging technologies and their impact on Arista products, come up with new and innovative ideas to improve and differentiate the product and help Arista become a leading player in the Campus space.
• You will work closely with sales and support teams to push new solutions, understand customer needs and pain points and help resolve escalations.
• You will not be limited to a single aspect of the product, it will be broad encompassing many different aspects including but not limited to developing new Access Points, designing and implementing new features, tracking new technologies and working closely with the sales and customer teams.

Requirements:

• Strong engineering and Computer Science fundamentals

• Expected to have a strong background in software development and good understanding of systems and networking areas with the knowledge of the WiFi area as an added bonus.

• Minimum 4+ years of relevant experience

• Well versed with programming in one of C/C++ languages

• Experience working in a Linux environment, developing applications or Linux drivers

• Proven experience in any of the below:

1. Network device drivers, operating system internals, Kernels, compilers, SOC architecture
2. Experience in developing Wi-Fi features (802.11), WLAN MAC Protocol, system integration, evaluate various performance parameters.
3. User space development for connectivity related products (Wireless Lan access points/ controllers, networking equipment) in one or more of following areas:

• HostAPD, Portal, RADIUS, AAA, Identity and role management, Radsec

• Tunnels, Firewall, Iptables, Flow Classification, QoS, TLS, DTLS Preferred Skills

• Experience with Wi-Fi device drivers on Linux.

• Hands-on experience in working with one or more WIFI chipset platforms

• Good System Level understanding of the Wireless AP functionality

• Experience in developing Wi-Fi features, system integration, evaluate various performance parameters

Resources:

• Arista Cognitive WiFi : https://www.arista.com/en/products/cognitive-wifi https://youtu.be/cT1INdR-xHQ https://www.youtube.com/watch?v=olPkCOT3MdA
• Arista Cognitive WiFi Datasheet: https://www.arista.com/assets/data/pdf/Datasheets/CloudVision-Wifi-Datasheet.pdf
• 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/

• Preparing Scope of Work and Project Plans for the Solution.
• Preparing High Level & Low Level designs as per proposed Solution.
• Design and Implementation of Routing and Switching technologies.
• Design and implementation of Data Centers on SDN technologies e.g. Cisco ACI, VMware NSX.
• Campus LAN and Wireless design, Implementation and Troubleshooting.
• Design and implementation of software defined campus network e.g. Cisco DNA, SD-Access
• Design, Implementation of WAN, and SDWAN Technologies.
• Hands on experience on WAN optimization technologies.
• Troubleshooting and repairing network issues, as well as developing, applying
• Hands on experience on WAN optimization technologies.
• Troubleshooting and repairing network issues, as well as developing, applying and enforcing best practices and policies
• Monitoring and performing routine tests on an assigned system and reporting results.
• Identifying opportunities for continuous improvements
• Contributing and producing regular status reports as required
• Provide resolution to project or customer issues, following proper escalation procedures, in a timely fashion
• Create project documentation and procedures
• Excellent communication (written and oral) and interpersonal skills
• Knowledge and experience of ITIL based service processes: Incident Management, Change Management, Release Management, Problem Management, etc.

The Network Engineer position provides a secure network infrastructure and resolves any network security related findings. Evaluate and analyze new technologies for potential applicability to business needs. Design, install, and support the network infrastructure capable of supporting the business processes at Citizens Energy Group. Design, test, and implement a disaster recovery process and procedures for the network infrastructure. Maintain a solid technical knowledge of computer hardware, software and applications available within the industry to support our current systems and assist in planning future directions.

Detailed Description

Essential Duties and Responsibilities:

• Responsible to provide on-call support in a 24/7 environment and remedy network outages or other interruptions.
• Maintain existing network equipment, installing new equipment and replacing faulty equipment in plant environments. Vendor and warranty management for network hardware and software.
• Design, implement, document, and test Disaster Recovery process and procedures for network infrastructure
• Manage network infrastructure backup and recovery processes
• Security and critical IOS update patch management
• Advise team for network infrastructure-related issues
• Proactive monitoring of to identify outages, service degradation, or security threats and responding accordingly
• Prepare, maintain, and adhere to procedures for logging, reporting, and statistically monitoring network data.
• Design, implement, and maintain network infrastructure to meet SLA requirements
• Design, implement, and maintain Firewall infrastructure for internal and remote use.
• Design, implement, and maintain network management platform for proactive monitoring and management of network infrastructure
• Designing, maintaining, and effectively operating Local Area Networks (LANs) and Wide Area Networks (WANs), Wireless, Internet Connectivity, and Network Security
• Prepare and ensure accuracy of documentation, procedure manuals, and help sheets for network installations, including data, voice, and video systems.
• Assist in development of business continuity and disaster-recovery plans, and maintain current knowledge of the plan. Respond to emergency network outages in accordance with business continuity and disaster-recovery plans
• Performs other duties as assigned
• This position will require an onsite presence and 80% local travel, as it will be supporting our utilities in the Greater Indianapolis Area

Job Requirements

Required Qualifications:

• Four-year degree with emphasis in Computer Science, Computer Technology, MIS or equivalent experience.
• Minimum 5 years of designing and supporting network devices and network protocols (Network switches, Firewalls, Wireless controllers and APs, BGP, OSPF, EIGRP, SIP and layer 2 protocols Spanning Tree, VPC, VDC and VTP).
• Experience with Watchgaurd Firewall, Active Directory, NPS, and RADIUS configurations
• Good interpersonal skills to interact with customers and team members
• Strong organization skills to balance and prioritize work
• Ability to work independently and as part of a team

• 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

∙ Computer Science related Bachelor's Degree or equivalent experience 

∙ Min 2 years of experience on GCP / AWS / Azure cloud system ( Overall 5+ years of experience) 

∙ Familiarity with LAMP stack technologies, experience supporting 

∙Must be capable of working on Linux System. 

∙ Familiarity with SQL, Apache, File storage, Load Balancers and Agile methodologies ∙ Knowledge of shell scripts, Linux system administration. 

∙ Strong DNS management and automation background 

∙ Strong scripting (bash, php, perl) skills 

∙ Good understanding of TCP/IP networking and troubleshooting 

∙ Clear communication and documentation of projects and procedures 

∙ Strong problem solving skills 

∙ Demonstrated ability to manage timelines, dependencies, deliverables, milestones and resource allocation and management in projects. 

∙Strong Cloud Architecture experience. 

∙Cloud Security 

∙Added Advantage with knowledge of Microservices/API/ Queue systems 

∙knowledge of cloud computing technologies and current computing trends. ∙Understanding and willingness to embrace CI/CD and automation tooling such as Jenkins and GIT 

Responsibilities: 

∙ Set up technical server infrastructure, providing technical assistance to development teams, monitoring site performance, and troubleshooting issues when they arise.

∙ Set up and maintain a development server environment and a live server environment with a process for testing and deploying changes to live sites. 

∙ Take an active role in designing, implementing and maintaining a scalable and robust enterprise server environment. 

∙ Administer Apache web server, Load balancer and MySQL Server 

∙ Work on System Security and IPTable configuration 

∙ Optimize servers for high traffic, security, and other system issues. ∙ Evaluate and propose new or improved system architecture. 

∙ Document system configuration, processes, and procedures. 

∙ Share responsibility with team members for rotating on-call duties.