TCS IS HIRING FOR Data Center Network Engineer - SD WAN, Routing & Switching, Cloud Networking

Tata Consultancy Services; Chennai District; On-site; INR 900,000 - 1,200,000; Full time

Job summary

Tata Consultancy Services is seeking a Data Center Network Engineer in Chennai to lead enterprise LAN/WAN design and ensure secure, high-performance network solutions. You will troubleshoot complex routing, switching, wireless, and firewall configurations, while coordinating with security and cloud teams.

Responsibilities include monitoring performance, implementing upgrades, and mentoring junior staff to maintain top-tier network reliability across data-centre environments.

Qualifications

• Extensive experience in designing and implementing LAN/WAN and wireless networks.
• Expert-level troubleshooting of routing, switching, wireless, and firewalls.
• Strong knowledge of network security policies and VPNs.
• Experience with enterprise firewall technologies and monitoring tools.

Responsibilities

• Lead LAN/WAN design and implementation for enterprise networks.
• Provide expert-level troubleshooting for complex network issues.
• Oversee firewall management across Checkpoint, Cisco ASA, Palo Alto, Fortinet.
• Monitor and optimize network performance and reliability.
• Collaborate with security, cloud, and data center teams.
• Mentor junior engineers and support staff.
• Create and maintain detailed network documentation.

Skills

LAN/WAN design

Troubleshooting

Firewall management

Wireless networking

Network security

VPN knowledge

Network monitoring

Project leadership

Documentation

Tools

Checkpoint

Cisco ASA

Palo Alto

Fortinet

SolarWinds

PRTG

Nagios

AWS

Azure

Job description

Skill-Data Center Network Engineer - SD WAN, Routing & Switching, Cloud Networking

Responsibilities

• Network Design & Architecture: Lead the design and implementation of enterprise-level LAN, WAN, and wireless network solutions, ensuring alignment with organizational requirements and industry best practices.
• Advanced Troubleshooting: Provide expert-level troubleshooting support for complex network issues, including routing, switching, wireless connectivity, and firewall configurations.
• Firewall Management: Oversee and manage firewalls (Checkpoint, Cisco ASA, Palo Alto, etc.), ensuring secure network traffic and protecting the network from unauthorized access.
• Optimization & Performance Tuning: Continuously monitor and optimize LAN, WAN, and wireless performance, including latency, bandwidth utilization, and high availability.
• Security Solutions: Implement and maintain network security policies, firewalls, and VPNs to ensure confidentiality, integrity, and availability of resources.
• Wireless Network Management: Manage and optimize wireless networks, including site surveys, AP placement, and wireless security protocols (WPA2/WPA3).
• Network Upgrades & Maintenance: Plan and execute network upgrades, firmware patches, and hardware replacements.
• Mentorship & Knowledge Transfer: Provide technical guidance to junior engineers and support staff.
• Incident & Problem Management: Lead resolution of complex network incidents ensuring timely escalation and closure.
• Network Monitoring & Reporting: Monitor network health using tools and provide detailed performance and incident reports.
• Collaboration with Cross-functional Teams: Work with security, cloud, and data center teams for enterprise-wide integration.
• Documentation & Process Improvement: Maintain detailed documentation and contribute to operational improvements.
• Extensive expertise in LAN, WAN, and Wireless networking (OSPF, BGP, MPLS, VLANs).
• Proficiency in firewall technologies (Checkpoint, Palo Alto, Cisco ASA, Fortinet).
• In-depth knowledge of wireless design, RF fundamentals, and optimization.
• Strong understanding of network security principles including VPNs, NAT, and IPS.
• Hands-on experience with monitoring tools (SolarWinds, PRTG, Nagios).
• Experience in high availability (HA) and network optimization for critical systems.
• Advanced troubleshooting in routing, switching, wireless, and firewall domains.
• Experience with redundancy, load balancing, and failover designs.
• Familiarity with cloud and hybrid networking (AWS, Azure).
• Excellent communication, documentation, and leadership skills.
• Strong organizational and problem-solving capabilities.