| Detail | For this role |
|---|---|
| Department | Information Technology |
| Level | Entry level |
| Reports to | IT Infrastructure Manager |
| Direct reports | None |
| Experience | Fresher or up to 2 years in network administration |
Network Administrator job description template
Copy this job description, replace the text in square brackets and post it on your careers page or a job portal.
Job title: Network Administrator
Department: Information Technology
Reports to: IT Infrastructure Manager
Location: [City], [office, branch or site]
About the role
A Network Administrator keeps a company's existing network running day to day, managing connectivity, user access, WiFi and network services. At the entry level they monitor devices, back up configurations, resolve connectivity issues and manage DHCP, DNS and VPN under senior guidance. A good network administrator keeps the network stable, spots problems early and documents the setup clearly. The role sits in the IT infrastructure team and reports to a network engineer or IT infrastructure manager, focused on operating and maintaining rather than designing the network.
Key responsibilities
- Monitor switches, routers, firewalls and links, and act on alerts before users are affected badly.
- Manage DHCP, DNS and VPN services so users and devices connect reliably every day.
- Back up device configurations regularly and keep a clean record of the network setup.
- Resolve everyday connectivity issues on wired, WiFi and remote access for staff.
- Manage WiFi access points, coverage and guest access across the office floors.
- Apply approved changes to network devices carefully during agreed maintenance windows.
- Maintain user access, port security and basic firewall rules under senior guidance.
- Coordinate with internet and equipment vendors for faults, links and replacements.
- Update firmware and security patches on network devices on a planned schedule.
- Document network diagrams, IP plans and procedures so the team can rely on them.
Requirements
- Graduate or diploma in computer science, IT or electronics
- Networking certification such as CCNA
- Knowledge of TCP/IP and network services
- Fresher or up to 2 years in network administration
KRAs and KPIs for a Network Administrator
Key result areas for the appraisal form, each with a KPI you can measure every month or quarter.
| Key result area | How to measure it |
|---|---|
| Network availability | Network uptime kept above the agreed service level each month |
| Issue resolution | Connectivity issues resolved within the service levels set by priority |
| Config backups | Device configurations backed up on schedule with no gaps |
| Change safety | Network changes made in windows with no unplanned outage |
| Patch compliance | Firmware and security patches applied within the agreed cycle |
| Documentation | Network diagrams and IP records kept current at all times |
Skills and tools
Tools used day to day: Switches and routers, Firewall console, Network monitoring tools, VPN gateway, Wireless controller, Ticketing system.
Reporting line and career path
Next roles: Network Engineer, Senior Network Administrator, Network Security Engineer
Interview questions for a Network Administrator
- What is the difference between DHCP and DNS and why do both matter?
- How do you back up and restore a switch or router configuration?
- A group of users lose network access. How do you investigate?
- How do you manage guest WiFi so it stays separate from the internal network?
- What is a VLAN and how does it help network administration?
- How do you plan a change so it does not cause an outage?
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What does a network administrator do?
A network administrator keeps a company's existing network running day to day. They monitor switches, routers and links, manage DHCP, DNS, VPN and WiFi, back up device configurations and resolve connectivity issues. They apply approved changes carefully and keep the network documented, so staff and systems stay connected reliably.
What is the difference between a network administrator and a network engineer?
A network administrator operates and maintains the existing network: monitoring, access, WiFi and daily issues. A network engineer designs and builds the network, plans capacity and handles complex changes and troubleshooting. The administrator keeps things running, while the engineer decides how the network is built. Many administrators grow into engineer roles over time.
What certification helps a network administrator in India?
The Cisco CCNA is the most valued entry certification for network roles in India, covering switching, routing, IP addressing and services. It gives you the foundation employers expect. Hands on practice with real or simulated switches, routers and firewalls matters just as much, and later certifications deepen your skills as you specialise.