96 Network Administrator jobs in Chennai

We are currently hiring a Network Administrator to ensure the reliability, security, and efficiency of our data communications network. The ideal candidate will have the skills and expertise to deploy, configure, maintain, and monitor all active network equipment, ensuring seamless network operations. Responsibilities include troubleshooting and resolving network issues, implementing security measures, and proactively optimizing network performance. The Network Administrator will play a crucial role in maintaining a robust and dependable network infrastructure for our organization. If you are passionate about network administration and are dedicated to upholding network reliability, security, and efficiency, we encourage you to apply for this opportunity. Responsibilities Fully support, configure, maintain and upgrade corporate customer's networks and in house servers Install and integrate new server hardware and applications Keep an eye out for needed updates Support and administer third-party applications Ensure network security and connectivity Monitor network performance (availability, utilization, throughput, goodput, and latency) and test for weaknesses Set up user accounts, permissions and passwords Resolve problems reported by end user Define network policies and procedures Specify system requirements and design solutions

Job Types: Full-time, Fresher

Pay: ₹9, ₹47,431.24 per month

Benefits:

• Provident Fund

Work Location: In person

• Proven experience in a network administrator role Hands on experience in networking, routing and switching Excellent knowledge of best practices around management, control, and monitoring of server infrastructure Experience with firewalls, Internet VPN's remote implementation, troubleshooting, and problem resolution is desired Ability to set up and configure server hardware Familiarity with backup and recovery software and methodologies Great at organising, prioritising and multitasking Juniper, Cisco, CWNA or BCNE training BSc degree in Computer Science or related field Post this Network

Job Types: Full-time, Part-time, Permanent, Fresher

Pay: ₹19, ₹47,588.66 per month

Expected hours: 24 per week

Benefits:

• Provident Fund

Work Location: In person

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

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

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

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

TCS is Hiring for Network Administrator

Role: Network Administrator

Experience: 8 - 12 Yrs

Location: Chennai / Gurgaon

Required Technical Skill Set: LAN, WI-FI, Cisco SDWAN, Routing, Switching, Cisco WLC, Cisco ISE, Cisco DNAC, Aruba Controller & Clear pass

Job Description:

• Configure Network devices such as routers, switches, Access points, Cisco DNAC and WLC.
• Good understanding in SDWAN Technologies
• Deep knowledge of TCP/IP, BGP, OSPF, EIGRP
• Extensive expérience with wired and wireless networks
• Strong troubleshooting and analytical skills.
• Good Kknowledge in Aruba WLC and Clear pass
• Deep understanding of networking protocols and technologies, including TCP/IP, DNS, DHCP, BGP, OSPF, VLANs, Inter Vlan Routing, EtherChannel, HSRP, VRRP, STP, Port Security
• Good Knowledge in Cisco ISE

Key Responsibilities: 

Network Infrastructure & Administration 

∙Plan and execute network migrations and upgrades with minimal disruption. 

∙Manage and maintain Active Directory, including users, groups, and policies. 

∙Perform routine network scans to identify vulnerabilities and maintain security 

compliance. 

∙Monitor and maintain firewalls, routers, and switches to ensure optimal network 

performance. 

∙Ensure reliable connectivity and uptime across all systems and endpoints. 

Security & Monitoring 

∙Configure, monitor, and maintain Cisco Meraki Firewalls and other security devices. 

∙Implement and manage network security measures including firewalls, VPNs, and 

intrusion detection/prevention systems. 

∙Respond to and resolve network performance issues, outages, and threats. 

∙Monitor logs and traffic for unusual behavior or security breaches. 

∙Apply security patches and firmware updates as needed. 

Ad Hoc IT Support 

∙Assist with technical support related to connectivity, access control, and infrastructure 

issues. 

∙Provide assistance on IT projects, new system integrations, and hardware deployments. 

∙Maintain documentation of systems, configurations, and standard operating procedures. 

Requirements: 

∙3+ years of experience as a Network Administrator or similar role. 

∙Strong knowledge of network protocols, infrastructure, and security best practices. 

∙Hands-on experience with Active Directory, DNS, DHCP, and Windows Server 

environments. 

∙Experience with firewalls (e.g., Fortinet, Cisco, or Palo Alto), switches, and VPNs. 

∙Familiarity with network monitoring and scanning tools (e.g., Nmap, Wireshark, 

SolarWinds). 

∙Understanding of network segmentation, VLANs, and IP routing. 

 ∙Strong troubleshooting and diagnostic skills.

Shift-US

SAL-30-35k (4 hours)

TCS is Hiring for Network Administrator

Role: Network Administrator

Experience: 8 - 12 Yrs

Location: Chennai / Gurgaon

Required Technical Skill Set: LAN, WI-FI, Cisco SDWAN, Routing, Switching, Cisco WLC, Cisco ISE, Cisco DNAC, Aruba Controller & Clear pass

Job Description:

• Configure Network devices such as routers, switches, Access points, Cisco DNAC and WLC.
• Good understanding in SDWAN Technologies
• Deep knowledge of TCP/IP, BGP, OSPF, EIGRP
• Extensive expérience with wired and wireless networks
• Strong troubleshooting and analytical skills.
• Good Kknowledge in Aruba WLC and Clear pass
• Deep understanding of networking protocols and technologies, including TCP/IP, DNS, DHCP, BGP, OSPF, VLANs, Inter Vlan Routing, EtherChannel, HSRP, VRRP, STP, Port Security
• Good Knowledge in Cisco ISE