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Network Admin/Engineer

Tata Consultancy Services
Full Timemid
Hyderabad, Telangana, INPosted 2 days ago

Job Description

Experience

5-12 Years

Network Administrator Responsibilities

  • Design, deployment, and upgrade of PTP and CMPLS WAN circuits (MPLS, BGP, VRFs), SDWAN.
  • Work exclusively with Cisco product line including ASR 9000s & 1000s, Catalyst 4500s, 3850s, 3650s, Nexus 3000 series, legacy 7200, 6500, ISR, FWSMs & ASA.
  • Configure and troubleshoot Layer 3 network protocols such as OSPF, ISIS & BGP.
  • Have good knowledge of Infoblox configuration and management & upgrades.
  • Implement QoS for voice and video on enterprise networks.
  • Experience with BGP routing protocol on internal enterprise networks.
  • Implement eBGP & MPLS to provide routing to diverse, globally connected ISPs and other autonomous systems.
  • Have DNS, proxy, VPN experience.
  • Manage WAN circuit service provider migration and collaborate with ISPs to resolve WAN issues.
  • Troubleshoot BGP, MPLS, IS-IS peering issues and work with ISPs; exposure to different distributors.
  • Have an intensive understanding of how networks function; knowledge and data of network system capabilities.
  • Expertise in network design.
  • Switching models: Cisco 6500/6900, Nexus 7K, 5K, 2K, VPC, FEX, VDC, Cisco VSS, Cisco Catalyst 4500, 3800, 3500, 2900.
  • Strong knowledge in routing technologies: handling Cisco ISR/ASR routers, protocols including BGP, OSPF, EIGRP, MPLS, VRF, L3 VPNs, IPsec, VPN, QoS, intelligent WAN.
  • Good working experience with routing protocols like EIGRP/OSPF/BGP/IS-IS/MPLS.

Job Requirements

  • . CCNA(mandatory) / CCNP certification is preferred.
  • Strong understanding of higher‑end Cisco switches and ISR routers (Nexus 7K, 5K, 2K, Cisco 6500, 4500, 3750, 2900) and routers (4000, 7200, 3800, 2800).
  • Should be able to handle complex routing and switching issues, route redistribution, IPSEC/Crypto issues.
  • Preferred to have work experience and knowledge on VPC, VSS, HSRP/VRRP, Cisco ACI leaf–spine design, Wireshark, NetFlow, good understanding of MPLS, GRE, SD‑WAN cloud.
  • Knowledge/Hands‑on of HP Aruba switches.
  • Experience managing large‑scale network infrastructure and data centres in accordance with industry best practice.
  • In‑depth knowledge of configuring and troubleshooting switching technologies such as STP, VTP, GRE, and IPSEC tunnels, L2 and L3 best practices of implementation on Cisco devices along with L2 traffic‑flow analysis.
  • In‑depth knowledge of configuring and troubleshooting routing protocols including static, dynamic (BGP, OSPF, EIGRP) and PBR.
  • Preferable knowledge on firewalls, load balancers, Wi‑Fi.

Key Responsibilities

  • Preferred to have work experience and knowledge on VPC, VSS, HSRP/VRRP, Cisco ACI leaf‑spine design, Wireshark, NetFlow, good understanding of MPLS, GRE, SD‑WAN cloud.
  • Knowledge/Hands‑on of HP Aruba switches.
  • In‑depth knowledge of configuring and troubleshooting routing protocols including static, dynamic (BGP, OSPF, EIGRP) and PBR.
  • Preferable knowledge on firewalls, load balancers, Wi‑Fi.

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