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Customer Service Executive - Customer Service Operations

Tata Communications Limited
Pune, India
24-26 Years
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Job Description

Key Responsibilities

  • Operations & Troubleshooting
    • Triage and resolve L2/L3 incidents (P1P3) for switching & routing: STP, VLANs, EtherChannel, HSRP/VRRP, OSPF, BGP, EIGRP, static routing.
    • Diagnose link flaps, MAC/ARP issues, routing loops, asymmetric routing, MTU/fragmentation, blackholing.
    • Handle WAN/MPLS/SD-WAN overlays (path selection, tunnel health, QoS policies).
  • Change & Configuration
    • Implement standard and non-standard changes: VLAN design, interVLAN routing, trunking, BGP peering, route filtering, prefix-lists, route-maps, redistribution.
    • Execute maintenance activities: firmware/IOS upgrades, switch stack/VSF/VSS changes, PoE/device moves.
    • Create/maintain golden configs, templates, and baselines.
  • Monitoring & Documentation
    • Proactive monitoring via NMS/flow tools set thresholds/alerts reduce noise via tuning.
    • Maintain network diagrams, IPAM, CMDB, port maps, and HLD/LLD updates.
    • Produce RCA for major incidents and propose prevention measures.
  • Security & Compliance
    • Enforce AAA/TACACS+/RADIUS, portsecurity, DHCP snooping, DAI, BPDU guard, control-plane policing.
    • Implement ACLs, uRPF (if applicable), and follow change governance (ITIL).
  • Collaboration
    • Partner with L3, Security, DC, Voice, and App teams coordinate with ISPs/carriers.
    • Mentor L1 engineers and contribute to runbooks/KB articles.

Required Skills & Experience

  • Experience: 24 years in network operations/engineering with core focus on switching & routing.
  • Routing Protocols: OSPF (areas, DR/BDR, LSAs), BGP (iBGP/eBGP, attributes, route selection, communities, filtering), EIGRP (if applicable).
  • Switching: VLANs, STP (RSTP/MSTP), EtherChannel/LACP, trunking, interVLAN routing, HSRP/VRRP/GLBP.
  • Platforms: Cisco Catalyst/Nexus, or equivalent (Aruba/HPE, Juniper EX/QFX). Familiarity with virtual chassis/stacking.
  • Tools: CLI (SSH), Wireshark/tcpdump, SolarWinds/PRTG/Zabbix, NetFlow/sFlow, IPAM (Infoblox), ITSM (ServiceNow/Jira).
  • Security Basics: 802.1X desirable, port-security, ACLs, DHCP snooping, storm-control.
  • Others: Strong troubleshooting methodology (OSI layering, packet-flow), solid documentation, change discipline.

More Info

Job Type:
Permanent Job
Industry:
Telecom/ISP
Function:
Network Operations Engineering
Employment Type:
Full time

About Company

Tata Communications Limited

Tata Communications is a digital ecosystem enabler that powers today&#8217&#x3B;s fast-growing digital economy. We enable the digital transformation of enterprises globally, including 300 of the Fortune 500. We carry around 30% of the world&#8217&#x3B;s internet routes and connects businesses to 60% of the world&#8217&#x3B;s cloud giants.
We have been a part of the rich heritage of the internet in India. Over the last 25 years, enterprise-enabled services have been essential to the adoption of digital services in the country. Connectivity is an essential fabric of sustenance for the economy. We are committed to enabling Industry leaders in this New World of Communications&#8482&#x3B;, with our unique promise of delivering secure connected digital experiences.
In 2020, we announced the launch of &#8216&#x3B;Secure Connected Digital Experience&#8217&#x3B; (SCDx), a proposition intended to meet this growing, worldwide demand for new ways of operating, which includes far higher levels of working from home, rising security risks, a shift to digital commerce, and more contactless experiences. It will help companies currently relying on short-term fixes by providing holistic, secure, enterprise-level digital solutions that address current challenges and are fit for the long term.

Job ID: 144489093

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Last Updated: 17-03-2026 06:24:44 AM
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