Top Network Engineer Jobs in Chennai

Tests and validates next-generation access network products, infrastructure, code, and hardware. Responsibilities include executing automated and manual test suites, investigating failures, benchmarking technologies, reproducing and troubleshooting field issues, and coordinating test runs with engineers, QA, vendors, deployment, and operations teams. The role works directly with RF and network equipment in test labs and supports faster deployment with fewer customer-facing defects and outages.

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.

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.

Support and deliver managed network services for business customers, focusing on Versa SD-WAN, data circuits, VoIP, VPNs, routers, and firewalls. Troubleshoot and configure LANs, networking equipment, Microsoft systems, and firewall solutions; provision and onboard customers; coordinate with vendors; own issues through resolution; maintain customer relationships; and mentor fellow engineers.

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.

Designs and operates large-scale network infrastructure in a 24/7 SaaS environment. Leads Network-as-Code, GitOps, CI/CD, infrastructure automation, Kubernetes and SDN networking, routing, security policy, load balancing, telemetry, and automated validation. Serves as a Tier 4 technical authority for complex network issues, drives resilient multi-region deployments, mentors engineers, and leads cross-functional architecture initiatives.

Lead daily network operations across LAN/WAN/SD‑WAN/wireless/cloud for global sites. Mentor engineers, manage incidents, drive troubleshooting/root cause, collaborate with cross‑functional teams, and lead network modernization, automation, and reporting efforts.

Designs, implements, optimizes, and troubleshoots enterprise and data center networks for commercial clients. Develops high- and low-level Cisco network designs, leads deployments involving routers, switches, firewalls, load balancers, and related appliances, and performs upgrades and maintenance. Monitors network performance, resolves issues, researches networking technologies, and provides post-sales consulting. The role also requires network automation, configuration management, SD-WAN implementation, and customer collaboration.

Supports and operates NVIDIA’s large-scale on-premises and cloud network infrastructure in a 24/7 global operations environment. Responsibilities include monitoring alerts, resolving incidents within SLAs, troubleshooting network issues, managing IP infrastructure and datacenter interconnects, coordinating vendors, implementing upgrades and capacity expansions, improving operational workflows, and documenting best practices. The role requires extensive networking protocol knowledge, cloud experience, automation exposure, and strong incident-management and communication skills.

Manage network operations issues from identification through closure, produce accurate daily status and SLA reports, validate and reconcile data, analyze root causes, coordinate technical resolution, and automate repetitive reporting and operational tasks using Excel, dashboards, Python, or scripting. The role requires strong network architecture knowledge, hands-on experience with routers, switches, and firewalls, clear stakeholder communication, documentation, and willingness to work shifts from the Bangalore or Hyderabad office.

Lead complex network and cloud deployments, manage customer implementations, troubleshoot issues, mentor junior engineers, and develop automation tools.

Seeking a Junior Network Engineer with 1-3 years of experience in networking technologies. Role includes designing IP addresses and subnets, configuring VLANs, routing protocols, and supporting 24x7 operations.

Installs, configures, monitors, maintains, and troubleshoots network security and switching solutions. Provides customer technical support, resolves connectivity and security issues, documents configurations and solutions, coordinates requirements, and collaborates with internal teams on project execution. Requires hands-on FortiGate and FortiSwitch experience, strong networking fundamentals, troubleshooting ability, communication skills, and willingness to travel locally when needed.

Designs, implements, monitors, and maintains secure on-premises and cloud network infrastructure. Manages firewalls, intrusion detection and prevention systems, VPN gateways, web application firewalls, AWS and Azure security controls, routing protocols, and hybrid cloud connectivity. Analyzes network traffic and security events, responds to incidents, performs vulnerability assessments, coordinates remediation, maintains documentation and policies, and supports compliance with security standards and best practices.

Designs, configures, and supports complex global data, voice, storage and video networks (including contact center and security). Implements regional network solutions, provides operational support, tracks project tasks, mentors junior engineers, and updates documentation.

Design, build, and maintain network automation solutions and front-end dashboards to improve network reliability and operational efficiency. Collaborate with network and infrastructure teams to gather requirements, implement scalable automation frameworks, support production systems, troubleshoot integrations and data issues, and provide Tier 2/3 operational support. Participate across the full software lifecycle and modernize internal tools for stability and maintainability.

Monitor and support a multi-cloud infrastructure environment across Azure, AWS, Windows, Linux, and SQL Server. Triage alerts, resolve incidents, execute patches, maintain compliance records, track reliability metrics, document incidents, improve runbooks, and identify automation opportunities. Participate in a follow-the-sun on-call rotation, including off-hours coverage.

Design, build, and maintain scalable test automation frameworks and AI-driven tools for carrier-grade, cloud-native network systems. Develop automated test suites in Python/Java/Go, integrate tests into CI/CD, apply ML for intelligent test generation and anomaly detection, analyze test/network data, and collaborate with development and QA teams to ensure quality and faster releases.

Design, build, and maintain scalable network test automation frameworks and automated test suites; integrate tests into CI/CD; apply AI/ML for test generation, anomaly detection, and analytics; analyze test/network data; collaborate with development and QA; contribute to test strategy and documentation.

Design and maintain scalable test automation frameworks and automated test suites for functional, regression, performance, and end-to-end network testing. Integrate tests into CI/CD pipelines, apply AI/ML for intelligent test generation and anomaly detection, analyze large test/network data sets, and collaborate across development, product, and QA to ensure testability and timely defect resolution.

Develop and maintain Python automation scripts for the Wireless Network Management Center. Analyze wireless trouble tickets and alarms to identify trends and business impact, interpret worklog entries, understand automation workflows, and answer user questions. The role also involves troubleshooting complex problems, supporting large-scale IT systems and applications, collaborating with stakeholders, and adapting code to new scripting languages in a hybrid work environment.

Provide 24/7 enterprise network support and escalations for global clients, administer and troubleshoot multi-vendor LAN/WAN infrastructures, implement security controls, perform IOS/firmware upgrades, coordinate with ISPs and onsite teams, document incidents and RCA, and lead remediation for affected endpoints.