Network Administrator

Deepak Nitrite Limited; Vadodara; On-site; INR 600,000 - 900,000; Full time

Job summary

Deepak Nitrite Limited seeks a Network Network Administrator to oversee the administration, configuration, monitoring, and security of LAN/WAN/SD-WAN, wireless, and Internet infrastructure. You will manage enterprise switches, firewalls, monitoring tools and coordinate with ISPs while ensuring high availability across locations.

The ideal candidate has hands-on Layer-2/3 networking, enterprise firewall experience, network security expertise, and incident management skills with a focus on meeting

Qualifications

• Hands-on experience with Layer-2/3 switching, VLANs, STP/RSTP/MSTP, EtherChannel, ACLs, QoS
• Experience with enterprise firewalls (Palo Alto, Fortinet FortiGate, Sophos) and VPNs
• Knowledge of network security, incident management, and compliance with SLAs
• Awareness of VAPT processes and patch/remediation workflows

Responsibilities

• Configure, manage, and troubleshoot Layer-2/3 switches and VLANs
• Configure and maintain routing (OSPF, BGP where applicable) and DHCP Relay
• Manage firewall policies and security features across Palo Alto, Fortinet, and Sophos
• Coordinate VPNs, SD-WAN, and WAN/Internet connectivity; ensure high availability
• Maintain network documentation, IP plans, and topology diagrams
• Coordinate with ISPs and vendors; produce SLA and performance reports
• Monitor networks using enterprise tools; perform incident handling and RCA

Skills

Layer-2/3 Switching

VLAN & Routing

Firewall security

Network monitoring

Incident management

ISPs coordination

Security compliance

VAPT coordination

SD-WAN administration

Wireless LAN management

Education

Bachelor’s degree in computer engineering / IT

Tools

ManageEngine OpManager

Job description

TheNetwork Administrator is responsible for the administration, configuration,monitoring, troubleshooting, optimization, and security of the organization'sLAN, WAN, SD-WAN, Wireless, and Internet infrastructure. The role includesmanaging enterprise switches, firewalls, network monitoring solutions, ISPcoordination, vendor management, cybersecurity compliance, and ensuring highnetwork availability across multiple business locations.

Thecandidate should possess strong hands-on experience with Layer-2 and Layer-3networking, enterprise firewalls, network security, and incident managementwhile ensuring adherence to defined Service Level Agreements (SLAs).

KeyResponsibilities

• Configure,manage, and troubleshoot Layer-2 and Layer-3 switches.
• Configureand maintain VLANs, Inter-VLAN Routing, Trunking, EtherChannel,STP/RSTP/MSTP.
• ConfigureStatic Routing and Dynamic Routing protocols (OSPF, BGP where applicable).
• ConfigureDHCP Relay, ACLs, QoS, VRRP/HSRP.
• Maintainnetwork documentation, IP addressing plans, topology diagrams, and networkinventory.
• Ensurehigh availability and redundancy of network infrastructure.

2.Firewall Administration

Configure,manage, troubleshoot, and optimize enterprise firewalls including:

• PaloAlto Networks
• FortinetFortiGate
• SophosFirewall

3.Network Security

• Implemententerprise network security best practices.
• Performfirewall policy reviews and optimization.
• Ensurecompliance with cybersecurity standards.
• CoordinateVulnerability Assessment and Penetration Testing (VAPT).
• AnalyseVAPT reports.
• Performremediation of identified vulnerabilities.
• Coordinatewith application owners and infrastructure teams for vulnerabilityclosure.
• Verifyremediation and maintain compliance reports.
• Assistduring security audits.

4.Network Monitoring & Performance Management

Administerenterprise monitoring solutions such as:

• ManageEngineOpManager
• OtherNetwork Monitoring Platforms

5.Internet & WAN Management

• Coordinatewith ISP service providers.
• Manageleased lines, MPLS, Broadband and SD-WAN connectivity.
• TroubleshootWAN connectivity issues.
• Coordinatefor circuit installation and upgrades.
• ValidateISP SLA compliance.

6.SLA Management

• Ensureadherence to Incident and Problem Management SLAs.
• Trackticket resolution timelines.
• Coordinatewith internal and external teams.
• PublishSLA reports.
• Performservice review meetings.

7.Incident & Problem Management

• Troubleshootnetwork outages.
• Resolverouting and switching issues.
• Resolvefirewall issues.
• Investigatelatency and packet loss.
• PerformRoot Cause Analysis (RCA).
• Implementpermanent corrective actions.

8.Change Management

• Implementnetwork changes through approved Change Management process.
• Preparerollback plans.
• Conductmaintenance activities during planned windows.

9.Wireless Infrastructure

• Configureand manage enterprise Wireless LAN (Aruba and Ruckus).
• ConfigureSSIDs.
• GuestWi-Fi.
• AuthenticationPolicies.
• RFOptimization.
• Wirelesstroubleshooting.
• Controllermanagement.

10.Documentation

Maintainupdated documentation including:

• NetworkDiagrams
• FirewallPolicy Documents
• IPAddress Inventory
• ConfigurationBackup
• StandardOperating Procedures (SOPs)
• DisasterRecovery Procedures
• NetworkChange Records
• KnowledgeBase Articles

11.Backup & Disaster Recovery

• Maintainconfiguration backups.
• Validatebackup restoration.
• Supportdisaster recovery drills.
• Ensurebusiness continuity for network services.

12.Compliance & Audit

• SupportInternal Audit.
• ISO27001 Compliance.
• SecurityAudits.
• VAPTCompliance.
• Documentationfor Regulatory Audits.

TechnicalSkills

Switching

• Layer-2Switching, Layer-3 Switching, VLAN, STP/RSTP/MSTP, EtherChannel/LACP, ACL,QoS, DHCP, DNS, Routing, OSPF, Static Routing, BGP (Preferred)

Firewalls

Hands-onexperience in:

• NAT,VPN, Security Policies, IPS, IDS, SSL VPN, Site-to-Site VPN, IPSec, URLFiltering, Application Control, SSL Inspection, High Availability, SecurityProfiles, Log Analysis

PreferredSkills

• SD-WANAdministration
• WirelessLAN Controller
• Aruba/CiscoWireless
• LoadBalancer Basics
• SIEMIntegration

Experience

• 3-5years of experience in Enterprise Network Administration.
• Experiencesupporting multiple plant/branch locations.
• Experiencemanaging enterprise firewalls.
• Experiencein ISP coordination and vendor management.
• Experiencehandling critical incidents in a 24×7 production environment.

EducationalQualification

• Bachelor’sdegree in computer engineering, Information Technology, Electronics, orequivalent.