This is the section where round two of the screen actually happens, the closing gate before an
interview hits your inbox. A recruiter takes their time here, and even at that, the current
role still drives around 95% of the result.
That tracks: nothing proves what you can run in production today like the seat you sit in
right now. To earn a "yes", the section has to hit every entry on the
Network Admin role profile, one bullet per domain you named in Domain
Expertise above. Every bullet has to come off something you genuinely held in production,
never a ticket that landed on your queue.
1
Switch & Router Operations
The flagship work of the role. Show the daily switching and routing operations you run:
port configs, VLAN changes, firmware upgrades on a schedule, IOS migrations across the
fleet. Name the platform and what now stays healthy, not "maintained switches".
Techniques
VLAN provisioning
Port-level changes (MACs)
Firmware lifecycle
Trunk & STP ops
Tools
Cisco IOS / NX-OS
Cisco Meraki
Aruba ArubaOS
Metrics
Devices under management
Firmware on baseline
Switch-port utilization
2
IP/DNS/DHCP Services Operations
How the network resolves and addresses every device. Show the IPAM platform you run, the
DHCP scopes you operate, and the DNS records you maintain. Name the platform and what now
stays accurate, not "managed IP".
Techniques
IPAM lifecycle
DHCP scope ops
DNS record management
Subnetting
Tools
Infoblox, BlueCat
BIND, Windows DNS
ISC DHCP, Windows DHCP
Metrics
Subnets under management
DNS query success rate
Address conflicts caught
3
Firewall & VPN Operations
The daily security work that keeps the firewall and VPN platform healthy. Show the rule
changes you run, the VPN onboarding and offboarding, and the firewall policy audit you
led. Name the platform and what you cleaned up, not "managed firewalls".
Techniques
Firewall rule changes
VPN onboarding
Rulebase cleanup
Certificate lifecycle
Tools
Palo Alto Panorama
Cisco ASA / FTD
Cisco AnyConnect, FortiClient
Metrics
Rules per quarter
VPN users onboarded
Stale rules cleared
4
Monitoring, Alerting & Reporting
What turns a slow service into a closed ticket. Show the monitoring platform you operate,
the alert tuning you ran (down on noise, up on signal), and the executive reporting you
ship every month. Name the system and the alert you cleaned up, not "monitored the
network".
Techniques
SNMP / syslog monitoring
Alert tuning
Capacity reporting
Dashboard ops
Tools
SolarWinds, PRTG
LibreNMS, Nagios
Grafana, Prometheus
Metrics
Alert noise reduced
MTTA cut
Uptime reported
5
Tier-2 Troubleshooting & Incident Response
Where Network Admin earns the on-call paycheck. Show the tier-2 escalation flow you
handle, the packet capture or trace you ran on a real production issue, and the root
cause you closed before users felt it. Name the incident and what you cut, not "ran
troubleshooting".
Techniques
Packet capture & analysis
Trace & path testing
Root-cause analysis
Runbook ops
Tools
Wireshark, tcpdump
ThousandEyes
PagerDuty, Opsgenie
Metrics
Tickets resolved
MTTR cut
Escalations reduced
6
Wireless Operations
How the network reaches every laptop and phone in the building. Show the wireless
controller or cloud platform you operate, the AP lifecycle (firmware, RF tuning), and the
site survey you ran when coverage dropped. Name the platform and the coverage you fixed,
not "managed wireless".
Techniques
AP firmware lifecycle
RF channel tuning
Site surveys
SSID & auth ops
Tools
Cisco Meraki, Aruba
Cisco WLC
Ekahau, AirMagnet
Metrics
APs operated
Coverage uplifted
Roaming issues closed
7
Documentation & Change Management
The discipline that keeps the network knowable. Show the documentation library you
maintain, the change advisory process you run, and the runbook you wrote that cut the
next on-call shift. Name the library and what it now powers, not "documented the
network".
Techniques
ITIL change management
Network diagrams
Runbook libraries
Source-of-truth
Tools
ServiceNow, Jira
Confluence, Notion
Visio, Lucidchart, NetBox
Metrics
Changes per month
Change-failure rate
Runbooks maintained
8
Automation & Tooling
What lifts a Network Admin out of the CLI rut. Show the scripts you wrote to bulk
configure switches, the Ansible playbooks you maintain, and the chore you killed off the
on-call queue. Name the chore you automated, not "wrote scripts".
Techniques
Bulk config push
Templated playbooks
Backup automation
Inventory updates
Tools
Ansible
Netmiko, Python
RANCID / Oxidized
Metrics
Hours saved weekly
Devices under code
Drift incidents down