Network Administrator

Reposted 2 Days Ago
Be an Early Applicant
Mambalam, Chennai, Tamil Nadu, IND
In-Office
Mid level
Information Technology • Professional Services • Software • Consulting
The Role
Maintain, upgrade and troubleshoot network infrastructure; support 24x7 operations and international customers; configure and manage firewalls, routers, switches, VPNs, MPLS, F5 load balancers; use packet capture and monitoring tools; mitigate network attacks and ensure high availability.
Summary Generated by Built In

Role: Network Admin

We are looking for a Network Administrator to maintain, upgrade and manage the Network Infrastructure.

4 to 5 years of experience in Network Infrastructure Support.

Netops JOB DESCRIPTION:

• Troubleshoot/Diagnose network issues and driving a resolution of the issues.

• Interact with international team and customers, to ensure consistent customer satisfaction.

Strong Knowledge in Palo Alto Build activities.

• Working knowledge of routing protocols OSPF, BGP, LSP and IPSEC VPN, OpenVPN, MPLS-VPNs (L3 and L2 VPNs) and other VPNs.

• Working knowledge of Switching techniques: VLAN, VTP, STP, ISL / Ether-Channel Good understanding of OSI Layer 1 and 2 protocols

• Good understanding of and Practical Experience in Wide Range of Juniper products like SRX 300,320,340,345,550,1500 and PA Firewalls

• Good knowledge in ARP, PING, TRACEROUTE, DNS, DHCP

• In-depth knowledge and practical understanding of Networking concepts OSI, TCP and IP related L3 protocols (DNS, DHCP, IP, ARP, ICMP, TCP, UDP, SNMP, FTP, TFTP)

• Solid understanding and troubleshooting skills in IPsec VPN technologies, Clustering and High Availability(HA) concepts on both firewall and switch.

• F5 load Balancers LTM/GTM Configuration/deployment/Upgrade and troubleshooting.

• Ability to understand and troubleshoot various network problems using utilities like nslookup, traceroute, ping, net stat and packet sniffers like wire shark, tcp dump.

• Good Practical experience in understating and troubleshooting Network Security and related Technologies

• Should have strong knowledge on various attacks like SYN flood, Replay attacks etc and the mitigation techniques

• Fundamental of Firewalls -SRX/SSG/ASA/Palo Alto/Proxies Technologies

• Basic awareness of IT management tools/network monitoring tools

• Open to work 24x7 (Including night shift)

 

Requirement:

• Experience in handling Juniper, Palo Alto, Cisco and F5 load balancers.

• Willingness to work in regular US time zone

• CCNA /CCNP, JNCIA certification is an added advantage.

• Good Knowledge & experience in Routers and Switches (Juniper, Cisco, PA).

• Experience in being part of and managing a 24x7 onsite-offshore operation, including but not limited to, shift

hand-over, operational advice, guidance, support and escalation

• Experience in a technical support environment working with Cisco products

• Hands on experience for network troubleshooting in WAN environment

• Working experience on MPLS, Multicast, BGP, OSPF, LSP, L2VPN, L3VPN, VLAN, STP, VRRP, RSVP,

BFD and switching technologies.

• Work with various teams to resolve escalated circuit problems to resolution

• Hands-on experience with monitoring, network diagnostic and network analytics tool

 



Requirements

Role: Network Admin

We are looking for a Network Administrator to maintain, upgrade and manage the Network Infrastructure.

4 to 5 years of experience in Network Infrastructure Support.

Netops JOB DESCRIPTION:

• Troubleshoot/Diagnose network issues and driving a resolution of the issues.

• Interact with international team and customers, to ensure consistent customer satisfaction.

Strong Knowledge in Palo Alto Build activities.

• Working knowledge of routing protocols OSPF, BGP, LSP and IPSEC VPN, OpenVPN, MPLS-VPNs (L3 and L2 VPNs) and other VPNs.

• Working knowledge of Switching techniques: VLAN, VTP, STP, ISL / Ether-Channel Good understanding of OSI Layer 1 and 2 protocols

• Good understanding of and Practical Experience in Wide Range of Juniper products like SRX 300,320,340,345,550,1500 and PA Firewalls

• Good knowledge in ARP, PING, TRACEROUTE, DNS, DHCP

• In-depth knowledge and practical understanding of Networking concepts OSI, TCP and IP related L3 protocols (DNS, DHCP, IP, ARP, ICMP, TCP, UDP, SNMP, FTP, TFTP)

• Solid understanding and troubleshooting skills in IPsec VPN technologies, Clustering and High Availability(HA) concepts on both firewall and switch.

• F5 load Balancers LTM/GTM Configuration/deployment/Upgrade and troubleshooting.

• Ability to understand and troubleshoot various network problems using utilities like nslookup, traceroute, ping, net stat and packet sniffers like wire shark, tcp dump.

• Good Practical experience in understating and troubleshooting Network Security and related Technologies

• Should have strong knowledge on various attacks like SYN flood, Replay attacks etc and the mitigation techniques

• Fundamental of Firewalls -SRX/SSG/ASA/Palo Alto/Proxies Technologies

• Basic awareness of IT management tools/network monitoring tools

• Open to work 24x7 (Including night shift)

 

Requirement:

• Experience in handling Juniper, Palo Alto, Cisco and F5 load balancers.

• Willingness to work in regular US time zone

• CCNA /CCNP, JNCIA certification is an added advantage.

• Good Knowledge & experience in Routers and Switches (Juniper, Cisco, PA).

• Experience in being part of and managing a 24x7 onsite-offshore operation, including but not limited to, shift

hand-over, operational advice, guidance, support and escalation

• Experience in a technical support environment working with Cisco products

• Hands on experience for network troubleshooting in WAN environment

• Working experience on MPLS, Multicast, BGP, OSPF, LSP, L2VPN, L3VPN, VLAN, STP, VRRP, RSVP,

BFD and switching technologies.

• Work with various teams to resolve escalated circuit problems to resolution

• Hands-on experience with monitoring, network diagnostic and network analytics tool

 



Skills Required

  • 4 to 5 years of experience in Network Infrastructure Support
  • Experience handling Juniper, Palo Alto, Cisco and F5 load balancers
  • Working knowledge of routing protocols: OSPF, BGP, LSP
  • Experience with IPsec VPN, OpenVPN and MPLS-VPNs (L2 and L3)
  • Working knowledge of switching techniques: VLAN, VTP, STP, ISL, EtherChannel
  • Practical experience with Juniper SRX series and Palo Alto firewalls
  • Knowledge of ARP, ping, traceroute, DNS, DHCP and core TCP/IP protocols
  • Troubleshooting skills for IPsec VPNs, clustering and High Availability on firewalls/switches
  • F5 LTM/GTM configuration, deployment, upgrade and troubleshooting
  • Experience using packet capture and diagnostic tools: Wireshark, tcpdump, nslookup, netstat, traceroute, ping
  • Understanding of network security, attack mitigation techniques (e.g., SYN flood, replay attacks)
  • Experience in 24x7 onsite-offshore operation including shift handovers and escalations
  • Hands-on experience troubleshooting WAN environments, MPLS, Multicast, L2VPN, L3VPN, VRRP, RSVP, BFD
  • Willingness to work regular US time zone and 24x7 (including night shifts)
  • Basic awareness of IT management and network monitoring tools
  • CCNA, CCNP, JNCIA certifications
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The Company
275 Employees
Year Founded: 2005

What We Do

Excelencia Consulting is a US-based, ISO 27001:2022-certified technology services provider specializing in Oracle solutions and Digital Engineering. The company provides on-site, offshore, and near-shore software technologies and ERP solutions to small and mid-sized enterprises globally. With a physical presence in the USA, UK, Canada, and India, Excelencia enables smarter operations and future-ready business transformations through its expertise in digital engineering services.

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