Top Network Engineer Jobs in Chennai

Leads complex enterprise, data center, cloud, and WAN network operations, providing L3/L4 support, critical incident escalation, troubleshooting, root cause analysis, and performance optimization. Designs and deploys network infrastructure, reviews architectures, supports security and load-balancing technologies, and leads transformation initiatives. Mentors engineers, drives automation and process improvements, manages ITIL practices, and communicates technical recommendations to clients and stakeholders in a 24/7 rotational environment.

Designs, engineers, and architects enterprise and hybrid-cloud networks. Responsibilities include routing and switching, firewalls, wireless, VPNs, load balancing, SDN, network diagnostics, security, and cloud connectivity across AWS and Azure. The role requires advanced TCP/IP, Cisco, routing protocol, and network architecture expertise, with scripting, automation, and relevant Cisco certifications preferred.

Monitors and maintains enterprise network environments, troubleshoots outages, configures routers, switches, firewalls, and SD-WAN, and performs upgrades, tuning, capacity planning, and security configuration. Documents incidents, provides performance reporting, supports network design projects, and collaborates with IT teams to optimize infrastructure. The role requires shift and on-call availability, strong analytical skills, customer focus, and experience with Cisco networking, wireless systems, routing protocols, monitoring platforms, automation scripting, and ticketing tools.

Designs and operates large-scale network automation and infrastructure-as-code platforms in a 24/7 SaaS environment. Responsibilities include building CI/CD pipelines, Network-as-Code and GitOps workflows, SDN and Kubernetes networking, routing and overlay infrastructure, automated security policies, telemetry, validation, and remediation. Serves as a senior technical authority for complex network issues while leading engineering standards, design reviews, mentoring, and cross-functional initiatives.

Provide 24/7 enterprise network support for global clients. Administer complex multi-vendor LAN, WAN, routing, switching, and firewall environments; troubleshoot escalated and high-severity incidents; configure Cisco networking and security devices; coordinate with ISPs, clients, and onsite teams; and manage network security technologies, VPNs, and SD-WAN solutions.

Maintains and supports enterprise LAN, wireless, routing, switching, firewall, VPN, and network security infrastructure. Monitors performance, troubleshoots incidents, performs root cause analysis, executes controlled changes, maintains documentation, supports network projects, and coordinates with vendors and service providers. The role also participates in onboarding, knowledge transfer, security remediation, production network support, and continuous improvements to network reliability and operational efficiency.

Designs, implements, tests, and supports enterprise networking and network security solutions across campus, data center, cloud, hybrid, and lab environments. Responsibilities include routing and switching, SDN, firewalls, VPNs, segmentation, troubleshooting, lifecycle upgrades, technical documentation, customer and vendor coordination, project workstream leadership, mentoring engineers, and improving standards, automation, and operational readiness.

Manage and support complex data center network infrastructure in a 24/7 rotational environment. Responsibilities include incident response, root cause analysis, lifecycle management, software upgrades, hardware refreshes, network deployments, documentation, CMDB maintenance, monitoring, configuration backups, and cross-functional coordination. The role requires expertise in routers, switches, firewalls, load balancers, Cisco ACI, and VMware NSX-T, with approximately 80% operational support and 20% build and deployment work.

Assists with configuring and managing firewalls, VPNs, routers, switches, load balancers, and other network security devices. Monitors network performance, availability, resource utilization, and capacity. Supports maintenance, patching, upgrades, troubleshooting, and resolution of network and security issues alongside senior engineers. Requires a relevant bachelor’s degree, mandatory CCNA certification, foundational networking and cybersecurity knowledge, analytical skills, and strong communication.

Designs and develops scalable automated testing solutions for carrier-grade, cloud-native network products. Responsibilities include building functional, regression, performance, and end-to-end test frameworks; developing tests with Python, Java, or Go; integrating testing into CI/CD pipelines; applying AI/ML for test generation and defect analysis; analyzing network and test data; and collaborating with development, product, and QA teams.

Designs and develops scalable automated testing solutions for carrier-grade, cloud-native network products. Responsibilities include building functional, regression, performance, and end-to-end test suites; integrating testing into CI/CD pipelines; applying AI/ML for test generation, anomaly detection, defect prediction, and self-healing automation; analyzing network and test data; and collaborating with development, product, and QA teams.

Provides 24/7 global client support for enterprise network security environments. Configures, manages, and troubleshoots Cisco FMC/FTD firewalls, VPNs, security policies, IDS/IPS, certificates, LAN/WAN infrastructure, routing and switching, and SD-WAN. Handles security incidents, escalated P1/P2 technical calls, risk remediation, and critical network issues while communicating directly with clients. Supports multi-vendor environments including Cisco and Arista.

Support and deliver managed network services for business customers, focusing on SD-WAN, Internet circuits, VoIP, VPNs, routers, firewalls, and related services. Responsibilities include troubleshooting, configuration, customer onboarding, vendor coordination, issue ownership, customer communication, and mentoring other engineers. The role requires strong networking expertise, particularly with Versa Networks, firewall configuration, routing protocols, NAT, QoS, and network design.

Operate and engineer large-scale network infrastructure in a 24/7 SaaS environment. Design network automation, CI/CD, GitOps, Infrastructure-as-Code, SDN, Kubernetes networking, telemetry, validation, and security-as-code solutions. Manage overlays, routing, firewalls, load balancers, and hybrid network fabrics while serving as a Tier 4 technical authority. Lead troubleshooting, design reviews, documentation standards, mentoring, and cross-functional engineering initiatives.

Provides first-line managed services support for client IT infrastructure, monitoring systems, investigating and resolving security and network incidents, handling ITSM tickets, performing patching and configuration changes, supporting disaster recovery testing, documenting solutions, and escalating issues while maintaining service levels.

As a Senior Network Development Engineer, you will lead integration and system testing, collaborate with development teams, and optimize networking solutions.

Manage and troubleshoot enterprise LAN, WAN, VLAN, wireless, routing, switching, firewall, authentication, and IT/OT network environments. Configure switches and access points, resolve critical incidents, perform upgrades and backups, coordinate with vendors and SOC teams, support audits and cybersecurity hardening, and provide project status updates. The role also supports telepresence, video conferencing, change management, and network implementation projects.

Manage and maintain HLR/HSS systems, provisioning platforms, SIM lifecycle operations, and core network components across multiple countries. Troubleshoot IMS call flows, VoLTE, VoWiFi, USSI, handover, and infrastructure incidents using Wireshark. Support HLR integrations, geographical expansion, capacity planning, process automation, and operational improvements while collaborating with network teams, architects, vendors, and country operations.

Manage enterprise network infrastructure and lead L1/L2 engineers in operational activities. Support Cisco, Aruba, Ruckus, wireless, routing, switching, firewall, authentication, and network management environments. Perform advanced troubleshooting, upgrades, change management, reporting, firewall reviews, and ITIL processes while maintaining factory network uptime. Coordinate escalations with internal teams and vendors and support information security initiatives.

Designs and tests IP network implementations while providing expert technical support, operational guidance, real-time network analysis, and solution testing. Performs manual testing of Cisco routing and switching technologies, particularly Cisco IOS-XR platforms. Uses networking protocols and services including IP/MPLS, OSPF, IS-IS, BGP, Segment Routing, VPNs, and QoS. Automation, traffic-generation tools, troubleshooting, communication, and networking certification are important parts of the role.

Deploys, configures, monitors, troubleshoots, and maintains enterprise network infrastructure across global data centers and remote sites. Administers Cisco, Juniper, Palo Alto, Check Point, F5, and wireless technologies; performs upgrades and network changes; documents configurations; supports security compliance, audits, vendors, and infrastructure projects. Serves as a technical escalation point and participates in on-call and global incident response coverage.

Deploys, configures, monitors, troubleshoots, and maintains enterprise network infrastructure across global data centers and remote sites. Supports Cisco, Juniper, firewall, wireless, and F5 technologies; performs upgrades and network changes; documents configurations; participates in infrastructure projects, audits, incident response, and vendor management. Acts as a technical escalation point and participates in a 24x7 on-call rotation.

Lead DNS Network Engineer responsible for DNS engineering projects, IPAM management, DNS and DHCP troubleshooting, domain stability, incident and change management, automation, and issue ownership. The role requires expertise with Infoblox, BlueCat, Nokia QIP, F5 devices, BIND, Unix/Linux, Python, Ansible, routing, switching, and firewall concepts. The engineer will coordinate with internal teams, external vendors, audit teams, and global customers while escalating crisis situations and providing management updates.

Monitor and support a multi-cloud infrastructure across Azure and AWS, including Windows, Linux, and SQL Server systems. Responsibilities include incident response, alert triage, patching, compliance tracking, network troubleshooting, reliability reporting, runbook improvement, and automation. The role participates in a follow-the-sun on-call rotation and supports VPNs, DNS, subnets, routing, monitoring tools, and infrastructure maintenance.

Develop and own an endpoint network proxy that intercepts and analyzes third-party traffic, terminates and re-establishes TLS, applies real-time policies, traces data flows, and processes large event volumes efficiently. The role requires building highly reliable, secure-by-design systems software capable of handling untrusted data and resisting attacks, while collaborating with distributed engineering teams.