Network Administrator · cover letter
Dear [Hiring Manager],
In my current role I keep a network of roughly 600 users across three sites running at 99.95 percent uptime, and last year I redesigned our segmentation and failover so a core switch failure that used to take down a site now reroutes with no user impact. That is the kind of reliability I want to bring to the Network Administrator role at [Company].
For the past five years I have administered LAN and WAN infrastructure, configuring switches, routers, firewalls, and VPNs, and managing VLANs, DNS, and DHCP. I monitor proactively, so I am usually fixing a degrading link before a ticket comes in rather than after. When a recurring slowdown was frustrating a whole department, I traced it to a duplex mismatch and a saturated uplink, fixed both, and documented the design so it would not happen again. I treat security as part of the job: I patch on schedule, segment sensitive systems, and tightened our firewall rules after an audit flagged gaps.
What I bring beyond configuration is calm during an incident and clear documentation after. I keep network diagrams current, write runbooks the help desk can actually follow, and communicate plainly during an outage so the business knows what is happening. I hold relevant certifications and stay current as the stack evolves toward more cloud and SD-WAN.
If this network is carrying the kind of undocumented growth most postings like this one describe without saying so directly, I would start where I started with the duplex mismatch: tracing the slow link nobody had prioritized yet. I patch on schedule and segment on principle, and I would rather close a gap before an audit finds it.
Sincerely,
[Your Name]
[Phone] | [Email]