Walk-in || Tcs hiring Network-Routing & Switching(Cisco, Aruba, ACI, SDWAN) Delhi

Job description

**Tata Consultancy Services (TCS) is Hiring!** TCS invites experienced professionals for a **Walk-In Drive** for Network - Routing & Switching (Cisco, Aruba, ACI, SD WAN Route), DNS roles. Walk-In Details **Date:** 08 August 2026 **Venue:** **TATA Consultancy Services (TCS)** Yamuna Tower VI, Assotech Business Cresterra, Plot No. 22, Noida-Greater Noida Expressway, Sector 135, Noida, Uttar Pradesh - 201304 **Location:** Delhi NCR **Experience:** 6-12 Years Role: L3 SME LAN/WAN Key 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. Required Skills & Qualifications - 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. - Scripting/automation skills (Python, Ansible, PowerShell). - 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.