Network L2 Administrator

Tata Consultancy Services Limited; Jakarta Pusat; On-site; IDR 240,000,000 - 420,000,000; Full time

Job summary

Tata Consultancy Services Limited is seeking a skilled Network Engineer to administer enterprise LAN/WAN across data centres and offices in Jakarta. You will configure routers, switches, firewalls, VPNs and monitor network performance to ensure high availability.

Responsibilities include incident resolution, change management, capacity planning, and collaboration with security and cloud teams. Experience with SNMP, NetFlow, and network monitoring tools is preferred.

Qualifications

• Must have enterprise LAN/WAN administration across data centres and offices, including VLAN, trunking, STP, routing, QoS, NAT and IP addressing.
• Cisco switch, router and wireless operations across enterprise office and data-centre networks.
• Firewall, site-to-site and remote-access VPN, ACL and network security policy administration.
• Network monitoring and troubleshooting using SNMP, NetFlow, Zabbix/Nagios/Grafana and packet analysis tools.
• Incident, change and problem management through Symphony Summit with SLA-driven escalation and RCA.

Responsibilities

• Administer LAN, WAN, wireless and perimeter network infrastructure across data centres, main offices and regional sites.
• Configure and troubleshoot routers, switches, WLC/APs, VLANs, routing protocols, firewall policies and VPN connectivity.
• Monitor availability, latency, utilisation and packet loss; tune alerts and maintain capacity baselines.
• Perform L2 incident resolution, implement approved changes and produce root-cause analyses within SLA.
• Maintain network diagrams, IP plans, configuration backups, standards, SOPs and CMDB records.
• Coordinate with carriers, managed network providers, cloud teams, security teams and on-site engineers for complex restoration activities.

Skills

LAN/WAN administration

Network security

VPN

Incident management

RCA

Tools

Cisco switches

Cisco routers

WLC/APs

SNMP

NetFlow

Zabbix

Nagios

Grafana

Python

Ansible

REST APIs

Cloudflare Zero Trust

Check Point CloudGuard

VMware NSX-T

Job description

A purpose-led organization that is building a meaningful future through innovation, technology, and collective knowledge. We're #BuildingOnBelief.

Tata Consultancy Services (TCS) is a global leader in IT services, digital and business solutions that partners with its clients to simplify, strengthen and transform their businesses. TCS offers a consulting-led, integrated portfolio of IT, BPS, infrastructure, engineering and assurance services. We ensure the highest levels of certainty and satisfaction through a deep-set commitment to our clients, comprehensive industry expertise and a global network of innovation and delivery centers. For more information, visit us at www.tcs.com.

About the Role:

Must Have:

• Enterprise LAN/WAN administration across data centres and offices, including VLAN, trunking, STP, routing, QoS, NAT and IP addressing
• Cisco switch, router and wireless operations across enterprise office and data-centre networks
• Firewall, site-to-site and remote-access VPN, ACL and network security policy administration
• Network monitoring and troubleshooting using SNMP, NetFlow, Zabbix/Nagios/Grafana and packet analysis tools
• Incident, change and problem management through Symphony Summit with SLA-driven escalation and RCA

Good to Have:

• SD-WAN and multi-cloud connectivity across Tencent Cloud, GCP, AWS and Azure
• Network automation using Python, Ansible or REST APIs
• Familiarity with Cloudflare Zero Trust, WAF/CDN and Check Point CloudGuard
• Knowledge of micro-segmentation and virtual networking with VMware NSX-T

Responsibilities:

• Administer LAN, WAN, wireless and perimeter network infrastructure across data centres, main offices and regional sites
• Configure and troubleshoot routers, switches, WLC/APs, VLANs, routing protocols, firewall policies and VPN connectivity
• Monitor availability, latency, utilisation and packet loss; tune alerts and maintain capacity baselines
• Perform L2 incident resolution, implement approved changes and produce root-cause analyses within SLA
• Maintain network diagrams, IP plans, configuration backups, standards, SOPs and CMDB records
• Coordinate with carriers, managed network providers, cloud teams, security teams and on-site engineers for complex restoration activities

All applicants who meet the requirements will be considered equally and fairly for employment. TCS is an equal employment opportunity provider and does not differentiate applicants on any basis.