System Administrator Resume Examples & Free Template (PDF, Word)

1. 1

   Title, years and scope

   Copy the job title from the ad (System Administrator, Systems Administrator, Windows Administrator), add your years, what you run and the kind of company. Server and user counts go here too, so a recruiter can place your level in one line.

2. 2

   Your stack

   The tools you use, sorted into the groups sysadmin job ads use: operating systems, identity, virtualization, backup, patching, monitoring and scripting. Recruiters hold the posting’s list up against this line, so it’s worth matching its product names.

3. 3

   Domain expertise

   Your strongest areas (OS upgrades, hybrid identity, disaster recovery) and the habits behind them, like change management or restore testing. A hiring manager reads this line to work out which problems you could take off their plate.

4. 4

   Collaboration

   The people you deal with every week (service desk, network and security teams, app owners, vendors) and where: change boards, maintenance windows, incident calls. Sysadmins support everyone, so show you can explain an outage to someone non-technical.

5. 5

   Leadership

   Runbooks you wrote, help desk staff you trained, the patch review you chair. No direct reports needed. Hiring managers want the admin whose fixes still hold when someone else is on call.

1. 1

   Windows & Linux Server Administration

   You keep the Windows and Linux servers built, upgraded and supported. Every server left on Windows Server 2016 or CentOS 7 is one an auditor will ask about, so hiring managers look for upgrades finished on time. Walk them through how you used standard images and change windows to upgrade servers with no surprise downtime.

   Techniques

   standard builds, in-place upgrades, change requests, capacity planning

   Tools

   Windows Server 2022, RHEL 9, SCCM, Kickstart

   Metrics

   servers upgraded, uptime, build time

2. 2

   Active Directory & Access Management

   You control who gets into what, from an employee’s first day to their last. A leaver who still has access 6 weeks later is a real security risk, and most hiring managers have seen one. Explain how you used Group Policy and Conditional Access to give the right access fast and take it away the same day.

   Techniques

   onboarding and offboarding, least privilege, access reviews, MFA rollout

   Tools

   Active Directory, Group Policy, Microsoft Entra ID, Okta

   Metrics

   time to remove access, MFA coverage, stale accounts

3. 3

   Virtualization & Storage

   You run the hosts and storage that every other system sits on. Since Broadcom changed VMware licensing, plenty of companies are either moving platforms or paying a lot more, so a hiring manager will want to see a migration you’ve run. Describe how you used vSphere or Hyper-V clusters and your storage arrays to move VMs and cut costs.

   Techniques

   cluster upgrades, VM migrations, right-sizing, storage tiering

   Tools

   VMware vSphere, Hyper-V, Proxmox VE, Pure Storage

   Metrics

   VMs migrated, licensing saved, VMs per host

4. 4

   Network Services & Remote Access

   You make sure DNS, DHCP and VPN just work for everyone. Users only notice these services when they break, and one bad DHCP scope or expired certificate can stop a whole office. Point out how you used DNS cleanup and remote access tools like GlobalProtect to cut the tickets users open about the network.

   Techniques

   DNS zone cleanup, DHCP scope planning, VLAN segmentation, certificate renewals

   Tools

   Windows DNS, Palo Alto GlobalProtect, Cisco Catalyst, Infoblox

   Metrics

   network tickets, VPN success rate, certificate outages

5. 5

   Patch Management & Hardening

   You patch every server on a schedule and lock down the ones that matter most. An unpatched server is one of the easiest ways in for ransomware, so hiring managers often ask for your patch rate first. Show them how you used SCCM and CIS Benchmarks to raise the share of servers patched on time.

   Techniques

   monthly patch cycles, CIS hardening, vulnerability remediation, EDR rollout

   Tools

   SCCM, WSUS, CrowdStrike Falcon, Tenable Nessus

   Metrics

   patch compliance, critical vulnerabilities, EDR coverage

6. 6

   Backup & Disaster Recovery

   You prove the company can get its data back after a bad day. A backup that’s never been restored is a guess, and after a ransomware attack, it’s the only thing between the company and paying up. Tell them how you used Veeam and scheduled restore tests to bring recovery time down to hours.

   Techniques

   immutable backups, restore testing, DR plans, RTO and RPO targets

   Tools

   Veeam, Commvault, Azure Blob Storage, Microsoft 365 backup

   Metrics

   recovery time, restore success, backup job success

7. 7

   Monitoring & Incident Response

   You catch problems before users call, and you lead the fix when you don’t. Noisy alerts wear out the on-call team and hide the one alert that mattered, which is why managers look for an admin who tunes them. Mention how you used Zabbix and ServiceNow root cause reviews to cut pages and repeat incidents.

   Techniques

   alert tuning, on-call rotation, root cause analysis, runbooks

   Tools

   Zabbix, PRTG, Grafana, ServiceNow

   Metrics

   after-hours pages, time to resolve, repeat incidents

8. 8

   Automation & Configuration Management

   You turn the checklists you run every week into scripts. An admin who scripts can look after more servers with fewer mistakes, and that habit is often what gets a sysadmin into a senior role. Let them know how you used PowerShell and Ansible to save hours and keep servers consistent.

   Techniques

   PowerShell scripting, configuration management, scheduled jobs, version control

   Tools

   PowerShell, Bash, Ansible, Git

   Metrics

   hours saved, tasks automated, configuration drift

Coming from the help desk? Your ticket work counts once it has numbers: accounts you managed, laptops you imaged, scripts you wrote. In a mostly Linux shop, keep all 8 areas and swap in Linux tools, like FreeIPA for identity, Ansible for patching and KVM for virtualization.

1. Level 1Task

   What did I work on? Open with a strong verb and one project you finished. On its own, it reads like a ticket title.

   Rebuilt the backup system for the lift ticketing servers.

2. Level 2+ Techniques

   How did I do it? Add the techniques. That’s how a hiring manager sees the decisions you made, not just the task.

   Rebuilt the backup system for the lift ticketing servers, adding immutable copies and scheduled restore tests.

3. Level 3+ Tools

   What tools did I use? Write the exact products, because recruiters filter on them. “Backup software” won’t show up in a search for Veeam.

   Rebuilt the backup system for the lift ticketing servers in Veeam with Azure Blob Storage and SureBackup, adding immutable copies and scheduled restore tests.

4. Level 4+ Method

   What method did I follow? Mention the standard or practice you worked to. It shows you plan for the day something fails.

   Rebuilt the backup system for the lift ticketing servers in Veeam with Azure Blob Storage and SureBackup, adding immutable copies and scheduled restore tests, following the 3-2-1 rule with 1 copy kept offline.

5. Level 5+ Metric

   What was the result? Finish with one number a manager outside IT would care about, like hours of downtime avoided or money saved.

   Rebuilt the backup system for the lift ticketing servers in Veeam with Azure Blob Storage and SureBackup, adding immutable copies and scheduled restore tests, following the 3-2-1 rule with 1 copy kept offline, and cut recovery time from 3 days to 4 hours.

   1. 01 Task What you worked on
   2. 02 Techniques How you did it
   3. 03 Tools The stack you used
   4. 04 Method The method you followed
   5. 05 Metric The result, one number

You’ve probably got most of these numbers already. Veeam keeps every job and restore result, Zabbix and ServiceNow log every alert and incident, and SCCM reports patch compliance by month. Pull a year of history before you write anything.