Network Administrator Resume Example

A network administrator owns an estate rather than a project. Somebody else may have designed the network, but you are the person it stays up for: the patching, the change windows, the monitoring, the three in the morning call when a core switch fails. Administration is judged on availability and on how little disruption your changes cause, which is a different argument from the one an engineer makes. The sample above runs a multi-site corporate network.
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Kevin O'Brien

Network Administrator
[email protected] | 0014087796572

Summary

Network administrator with eight years keeping the networks running for a hospital group and a university in Dublin. The person who keeps everything connected — monitoring and maintaining switches, routers, firewalls and Wi-Fi, troubleshooting outages fast, managing access and backups, and making sure staff and systems stay online and secure every day. Cut network downtime through proactive monitoring and led a Wi-Fi upgrade across multiple sites. Administers and monitors network infrastructure, troubleshoots and resolves issues, manages access and security, maintains documentation, and supports users. Reliable, methodical and calm under pressure. Looking for a network-administrator or infrastructure role with an organisation that depends on a network that simply works.

Work Experience

Network Administrator
Dublin Hospital Group, Dublin, Ireland
Jan 2019 – Present
  • Keep everything connected, making sure staff and critical systems stay online and secure every single day.
  • Cut network downtime through proactive monitoring and led a Wi-Fi upgrade across multiple hospital sites.
  • Monitor and maintain switches, routers, firewalls and Wi-Fi, keeping the network healthy and performing well.
  • Troubleshoot and resolve outages fast, getting users and systems back online before problems spread.
  • Manage network access, security and backups, protecting the network and the sensitive data that runs on it.
  • Maintain documentation and support users, keeping the network understood and the help desk well informed.
IT Support / Junior Network Admin
Dublin University IT, Dublin, Ireland
Feb 2017 – Dec 2018
  • Supported network and IT operations for a university, learning network administration hands-on each day.
  • Resolved connectivity issues and maintained kit, building networking and troubleshooting skills over time.
  • Learned switching, routing and network support on the job during this first role.
  • Gained the certification and experience that led into a full network-administrator role of my own.

Education

BSc in Network Computing, Network Computing
Technological University Dublin
Sep 2012 – Jun 2016
  • Degree in network computing covering networking, systems, security and administration, with a placement. The programme built the technical foundation administering business networks requires. It led directly into network administration.
Cisco CCNA Certification, Networking
Cisco
Aug 2016 – Jan 2017
  • Industry certification in networking fundamentals, routing and switching to a recognised standard. It validated core network skills. It supported configuring, maintaining and troubleshooting real network infrastructure.

Highlights

Cut network downtime
  • Cut network downtime by moving from reactive fixing to proactive monitoring. In a hospital, a network outage can disrupt patient care, so reducing downtime directly protects both operations and safety.
Led a multi-site Wi-Fi upgrade
  • Led a Wi-Fi upgrade across multiple sites with minimal disruption. Reliable wireless underpins how modern staff work, so upgrading it across sites without breaking service is a real, visible improvement for everyone.

Certifications

Cisco CCNA Certification
Cisco
Jan 2017 – Present
  • Industry certification in networking fundamentals, routing and switching to a recognised standard, which validated core network skills and supports configuring, maintaining and troubleshooting real network infrastructure.

Wi-Fi Upgrade

Multi-Site Wi-Fi Upgrade
Jan 2021 – Sep 2021
  • Led the upgrade of wireless networks across several hospital sites, planning the rollout and cutover carefully, which improved coverage and reliability for clinical staff while keeping disruption to a minimum.

Languages

  • English (UK) — Native or Bilingual Proficiency
  • Irish — Professional Working Proficiency

Technical Skills

  • Network Monitoring
  • Switching & Routing
  • Firewall Management
  • Wi-Fi & Wireless
  • Troubleshooting
  • Access & Security
  • Backups & Recovery
  • Network Documentation
  • User Support
  • Cisco/Network Hardware

Personal Skills

  • Reliability
  • Methodical Approach
  • Calm Under Pressure
  • Problem Solving
  • Communication

Activities & Interests

  • Meet People
  • Weight Lifting
  • Swimming
  • Dating
  • Park

Key Takeaways for a Network Administrator Resume

This is an availability role, so lead with the estate you keep running:
  • Give the estate size covering sites, users, devices and circuits, since that establishes what you have actually held together.
  • Name the vendor stack, because Cisco, Juniper, Fortinet and Palo Alto environments are screened as literal requirements.
  • Quote uptime and availability, as keeping the network up is the outcome the whole role exists to deliver.
  • Show change discipline including maintenance windows and rollback plans, since most outages are self-inflicted.
  • Include your certifications, as CCNA and equivalent credentials are commonly a hard filter on network postings.
  • Evidence incident response, because how quickly you restore service matters more to a business than how you designed it.

Why This Network Administrator Resume Works

This sample belongs to an administrator running a multi-site corporate network, and it argues availability rather than design.
  • The estate is quantified with sites, users and devices, which tells an infrastructure manager the scale being held together.
  • The vendor stack is named specifically, since a Cisco environment and a Fortinet one demand different day to day knowledge.
  • Availability is quoted as a figure rather than described, and uptime is the outcome a network administrator is judged against.
  • Change control discipline appears explicitly, because most network outages are caused by changes rather than by hardware failure.
  • Certifications are listed prominently, as these operate as a hard filter on a large share of network infrastructure postings.
  • Incident restoration times are given, which is what a business actually experiences when something in the network breaks.

How to Write a Network Administrator Resume

An infrastructure manager wants to know the size of your estate and how often it went down.
Quantify the estate
Sites, users, switches and routers, firewalls, wireless access points, WAN circuits, bandwidth. Estate size establishes the level of the role immediately, and a single-site network is a genuinely different job from twelve.
Name the vendor stack
Cisco, Juniper, Aruba, Fortinet, Palo Alto, Meraki, plus the switching, routing and firewall platforms specifically. These are matched literally, and a manager is assessing whether you would be productive on their equipment.
Give availability figures
Uptime achieved, availability against a service level target, unplanned outage minutes. Keeping the network up is what the role exists for, and an availability figure argues on exactly the metric being measured.
Show change discipline
Maintenance windows, change approval, rollback plans, configuration backups, changes made without incident. Most outages are self-inflicted, so evidence of disciplined change is genuinely persuasive to an infrastructure manager.
Include incident response
Outages restored, mean time to restore, root causes identified, monitoring you added afterwards. How fast service comes back is what a business experiences, and it matters far more to them than elegant design does.
Put certifications up front
CCNA, CCNP, vendor firewall credentials, cloud networking. These operate as hard filters across a large share of infrastructure postings, so a recruiter should confirm them without reading through your experience. Infrastructure roles are screened on vendor stack and certifications first. You can build a free network administrator resume and keep your estate size, uptime and certifications easy to find.

What to Include in a Network Administrator Resume

Beyond the standard sections, an infrastructure manager scans specifically for these:
Estate size covering sites, users, switches, routers, firewalls, access points and WAN circuits managed.
Vendor stack named specifically across switching, routing, wireless, firewall and any cloud networking.
Availability figures including uptime achieved, service level attainment and unplanned outage minutes.
Change management practice covering windows, approvals, rollback planning and configuration backups.
Incident response evidence including restoration times, root causes found and monitoring added after.
Certifications listed prominently with their currency, since these operate as hard filters on most postings.
Extra tips
Write sites, users, devices and circuits as a single line under each role rather than leaving the scale implied.
It communicates the level of the job instantly, which a list of technologies you have touched never manages to do.

Network Administrator Resume Summary Examples

Two summaries at different stages, both leading with the estate rather than with technologies known:
Entry-level resume summary example
Network administrator with two years supporting a single-site corporate network of around three hundred users, holding a current CCNA. Administers Cisco switching and a Fortinet firewall including VLANs, routing, access control and the wireless estate across forty access points. Handles network incidents as second line, restoring service and documenting the cause rather than only recording that something was fixed. Performs changes inside agreed maintenance windows with configuration backups taken beforehand. Monitors capacity and circuit utilisation and escalates before a link becomes a problem, and is looking for a multi-site administration role.
Senior-level resume summary example
Network administrator with six years running a multi-site corporate network spanning nine locations, around two thousand users and the WAN circuits connecting them, holding CCNP certification. Administers Cisco switching and routing alongside Palo Alto firewalls and an Aruba wireless estate, and has maintained availability above the agreed service level across successive years. Restored major incidents including a core switch failure and a circuit outage, then addressed the single points of failure behind both rather than only recovering service. Runs disciplined change control with rollback plans and configuration backups taken before every window. Targeting a network engineer position.

Network Administrator Work Experience Examples

Three sets covering the shape of network administration, since estate ownership, incidents and change are assessed separately.
Estate administration and availability
  • Administered a multi-site network spanning nine locations, around two thousand users and the WAN circuits connecting them, holding availability above the agreed service level across successive years.
  • Managed Cisco switching and routing alongside Palo Alto firewalls and an Aruba wireless estate, which is the combination the environment actually ran on rather than a list of technologies studied.
  • Maintained firmware and patch currency across the estate on a scheduled basis, since an unpatched network device is both a security exposure and a support case waiting to become urgent.
  • Monitored capacity and circuit utilisation continuously and escalated before a link became a constraint, rather than discovering a saturated circuit through a wave of user complaints.
  • Kept network documentation current including topology, addressing and circuit detail, because an undocumented network takes hours longer to fix at exactly the moment that hours matter most.
Incident response and troubleshooting
  • Restored major incidents including a core switch failure and a WAN circuit outage, then addressed the single points of failure behind both rather than simply recovering service and moving on.
  • Diagnosed problems methodically from the physical layer upward rather than guessing, since a structured approach finds a fault faster than changing configuration and hoping something improves.
  • Worked with circuit and hardware vendors during outages, holding them to their support commitments rather than accepting the first diagnosis offered on a case that was costing real money.
  • Added monitoring and alerting after incidents so that the same failure would be detected rather than reported by a user, which is the difference between a minor event and a lengthy outage.
  • Wrote incident reports identifying the genuine root cause including where a process rather than the technology had failed, which is frequently the more uncomfortable and more useful finding.
Change, security and projects
  • Performed network changes inside agreed maintenance windows with rollback plans and configuration backups prepared beforehand, since most network outages are caused by changes rather than hardware.
  • Managed firewall rules and access control including periodic review, removing the accumulated rules that nobody could justify but everybody was afraid to delete without proper checking.
  • Segmented the network to separate guest, corporate and operational traffic, which limits how far a compromise can travel rather than relying entirely on perimeter defences to stop it.
  • Supported site rollouts and office moves including circuit provisioning and equipment installation, working to a date that the rest of the business had already committed to publicly.
  • Implemented network access control and improved wireless authentication, which removed a long-standing exposure where any device reaching a port could effectively reach the whole network.

Top Network Administrator Skills

What an infrastructure manager screens for, weighted toward estate ownership and availability:
Hard skills
  • Cisco Switching & Routing
  • VLANs & Trunking
  • Routing Protocols (OSPF / BGP)
  • Firewall Administration (Palo Alto / Fortinet)
  • Wireless Networks (Aruba / Meraki)
  • WAN & Circuit Management
  • Network Monitoring & Alerting
  • VPN & Remote Access
  • Network Access Control
  • Network Segmentation
  • DNS, DHCP & IP Address Management
  • Configuration Backup & Change Control
  • Packet Capture & Analysis
  • Cloud Networking (Azure / AWS)
  • Network Documentation
  • Incident & Problem Management
  • Vendor & Circuit Escalation
Soft skills:
  • Composure During Outages
  • Methodical Troubleshooting
  • Change Discipline
  • Clear Written Handover
  • Vendor Firmness
  • Anticipation

Certifications for a Network Administrator

Networking is one of the most certification-driven areas of IT, so these carry genuine weight:
  • Cisco Certified Network Associate — Cisco
    The baseline networking credential and frequently a minimum requirement on administration postings. It remains the most widely recognised network certification regardless of which vendor an employer runs.
  • Cisco Certified Network Professional — Cisco
    The professional-level credential covering enterprise routing and switching in depth. Genuinely differentiating for senior administration and the usual step toward network engineering roles.
  • Firewall Vendor Certification — Palo Alto Networks, Fortinet or Check Point
    Directly relevant since firewall administration is usually part of the role. Vendor-specific credentials matter here because firewall platforms differ considerably more than switching platforms do.
  • CompTIA Network+ — CompTIA
    Vendor-neutral fundamentals covering protocols, topologies and troubleshooting. Most useful early in a career or when moving into networking from general IT support rather than at experienced level.

Network Administrator Salary

Pay tracks estate complexity and certification, with security-adjacent work above general administration:
USD 65,000 – USD 135,000 · Network administrator · US
National median around $99,130. Multi-site estates, security responsibility and professional certification push toward the upper end of the range.

Common Network Administrator Resume Mistakes

These weaken applications for a role judged on whether the network stayed up:
  • Listing technologies without estate size, so a manager cannot tell whether you ran a single office or a multi-site network.
  • Omitting availability figures, when uptime is the outcome the entire role exists to deliver and is genuinely measurable.
  • Leaving the vendor stack vague, since a Cisco environment and a Fortinet one demand different day to day knowledge.
  • Skipping change discipline, when most network outages are self-inflicted and disciplined change is what prevents them.
  • Describing incidents without restoration times, which is exactly what the business experienced while the network was down.
  • Burying certifications, when these operate as hard filters on a large proportion of network infrastructure postings.

Network Administrator Resume FAQs

The questions network administrators most often search when applying, answered directly:

An administrator operates and maintains an existing network, owning availability, changes and incidents. An engineer designs and builds it. Administration is the standard route into engineering, and the titles overlap in smaller organisations.
Lead with switching, routing and firewall administration on your actual vendor stack, then monitoring, VPN and network access control. Add change management, documentation and incident response with restoration times.
CCNA is the practical baseline and frequently a minimum requirement. CCNP differentiates at senior level, and a firewall vendor certification matters because those platforms vary far more than switching does.
Use uptime achieved, service level attainment, unplanned outage minutes, mean time to restore, and single points of failure you removed. Availability is measurable and very few network resumes ever quote it.
Most people arrive from service desk or desktop support. Get CCNA, build a home lab or use network simulation software, and take every networking ticket that comes through the service desk queue you work on.
Yes, though the skills are shifting. Physical estates still exist in most organisations, and cloud networking is itself a growing specialism. Administrators who add cloud networking to traditional skills are well positioned.

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