Senior Network Support Engineer

Experis; Chennai District; On-site; INR 800,000 - 1,500,000; Full time

Job summary

Experis is seeking an experienced Sr. Network Support Engineer to join its Infrastructure Operations team in Chennai. The role focuses on maintaining, monitoring, troubleshooting, and optimizing enterprise networks, including VLANs, WAN/LAN, VPN, and security.

You will work with cross-functional teams to ensure high availability and performance in a 24x7 environment. Ideal candidates will have CCNA or Network+ certification, hands-on experience with UniFi or similar platforms, and strong

Qualifications

• Strong core networking skills with VLAN proficiency.
• Experience with enterprise networking platforms such as Ubiquiti UniFi or Cato Networks.
• Certifications like CCNA or Network+._
• Excellent analytical, problem-solving and communication abilities.

Responsibilities

• Monitor and support enterprise network infrastructure across locations.
• Troubleshoot LAN/WAN/WLAN, VPN, SD-WAN, and internet connectivity.
• Perform RCA for recurring incidents and implement permanent fixes.
• Configure and manage routers, switches, firewalls, and wireless controllers.
• Support security initiatives including firewall policies, ACLs, IDS/IPS, and VPNs.
• Participate in ITIL-aligned incident, problem, and change processes.
• Collaborate with vendors, ISPs, and internal teams to resolve issues.
• Maintain network documentation and diagrams.
• Provide Level 2/3 support for critical incidents.
• Support cloud networking and hybrid deployments.
• Ensure compliance with security and operational standards.

Skills

VLAN

Core networking

Network troubleshooting

UniFi / Cato platforms

Communication skills

Education

Cisco CCNA

CompTIA Network+

Tools

Ubiquiti UniFi

Cato Networks

Job description

Role Summary

We are seeking an experienced and highly skilled Sr. Network Support Engineer to join our Infrastructure Operations team. The ideal candidate will be responsible for maintaining, monitoring, troubleshooting, and optimizing enterprise network environments. The role requires strong expertise in routing, switching, firewalls, VPNs, WAN/LAN technologies, network security, and incident management in a 24x7 support environment. The candidate will play a critical role in ensuring network availability, performance, security, and reliability while collaborating with cross-functional teams and supporting global business operations.

Key Responsibilities

• Monitor, maintain, and support enterprise network infrastructure across multiple locations.
• Troubleshoot complex network issues involving LAN, WAN, WLAN, VPN, SD-WAN, and internet connectivity.
• Perform root cause analysis (RCA) for recurring network incidents and recommend permanent solutions.
• Configure, deploy, and manage network devices including routers, switches, firewalls, and wireless controllers.
• Support network security initiatives including firewall policies, ACL management, IDS/IPS, and VPN connectivity.
• Participate in incident, problem, and change management processes following ITIL standards.
• Work closely with vendors, ISPs, and internal teams to resolve infrastructure-related issues.
• Perform network performance analysis, capacity planning, and optimization activities.
• Maintain network documentation, diagrams, configurations, and operational procedures.
• Provide Level 2/Level 3 technical support for critical network incidents.
• Support cloud networking environments and hybrid infrastructure deployments.
• Ensure compliance with organizational security and operational standards.

Required Qualifications

• VLAN is mandatory
• Core Networking skills
• Experience supporting Ubiquiti UniFi, Cato Networks, or similar networking platforms.
• CompTIA Network+, Cisco CCNA, or similar networking certification.
• Strong analytical and problem-solving skills.
• Strong written and verbal communication skills.