Turn inspiration into your own evidence
Do not copy the career. Learn how the career is communicated.
Read the evidence
Notice where the example uses scale, change, ownership, and context.
Replace every fact
Write from your real work, even when your numbers or setting are different.
Check the result
Make sure the document remains readable, truthful, and aligned to the role.
Key Skills
Use only the skills you can support with real experience. The example shows the vocabulary; your evidence makes it credible.
Full System Administrator Resume Example
This is a complete fictional sample. Study the structure and evidence patterns, then replace every name, employer, number, skill, and accomplishment with information that is true for you.
Professional Summary
Systems administrator with 10 years operating mixed Windows and Linux estates for manufacturing and healthcare organizations, currently responsible for 340 servers, 1,800 endpoints, and 2,200 users across two data centers and Azure. Maintains 98% patch compliance on a fixed monthly cadence, has held measured uptime at 99.97% for three consecutive years, and runs quarterly disaster recovery drills that cut documented failover time from 6 hours to 90 minutes. Restored full plant operations within a 4-hour RTO during a 2023 ransomware incident with no ransom paid and no lost production data.
Work Experience
Senior Systems Administrator
2020 – PresentGranite Peak Manufacturing — Boise, ID
- Administer a hybrid estate of 340 servers (210 Windows Server, 130 RHEL) across two data centers and Azure, supporting 2,200 users at four plant sites
- Run monthly patch cycles with WSUS and Ansible across the full fleet, sustaining 98% compliance within 14 days of release and zero exploited CVEs since 2020
- Led 2023 ransomware recovery, restoring plant operations from immutable Veeam backups within the 4-hour RTO and rebuilding 60 compromised endpoints in one weekend
- Migrated 55 workloads to Azure with site-to-site VPN and Entra ID hybrid join, cutting data center power and hardware refresh costs by $95K annually
- Direct quarterly disaster recovery drills against a documented runbook, reducing full-failover time from 6 hours to 90 minutes over eight test cycles
Systems Administrator
2016 – 2020Vallecito Regional Health — Salt Lake City, UT
- Maintained Active Directory, Group Policy, and Exchange for a 900-user hospital network under HIPAA audit, closing every audit cycle with zero infrastructure findings
- Virtualized 70 physical servers onto a VMware vSphere cluster, reclaiming rack space and cutting hardware maintenance spend 45%
- Built Zabbix monitoring with escalation runbooks for 150 clinical and back-office systems, dropping mean time to detection from 30 minutes to under 5
- Managed nightly backup jobs and monthly restore verification for 40TB of clinical data, meeting a 15-minute RPO on the EHR database
Junior Systems Administrator
2014 – 2016Cobalt Ridge Technologies — Ogden, UT
- Provided tier-2 support and server administration for 30 managed-service clients running Windows Server and Hyper-V environments
- Scripted user onboarding and offboarding in PowerShell, cutting provisioning time from 2 hours to 15 minutes and reducing account setup errors
- Deployed and documented firewall and VPN configurations for 12 client offices, standardizing remote access across the customer base
Education
- BS, Information Technology — Weber State University · 2014
Certifications
- Microsoft Certified: Azure Administrator Associate
- Red Hat Certified System Administrator (RHCSA)
- CompTIA Security+
- VMware Certified Professional — Data Center Virtualization
- ITIL 4 Foundation
Achievement bullet patterns
Adapt the sentence pattern to your work. Never copy an employer, number, tool, or outcome that is not true for you.
- 1
Managed a hybrid infrastructure of 300+ Linux and Windows servers across 3 data centers and AWS, maintaining 99.98% uptime for 2,500 end users
Adapt the pattern; do not copy facts that are not yours.
- 2
Automated server provisioning and configuration with Ansible and Terraform, reducing new environment setup time from 6 hours to 20 minutes and eliminating manual configuration drift
Adapt the pattern; do not copy facts that are not yours.
- 3
Led migration of 40 on-premise workloads to AWS EC2 and RDS, cutting infrastructure costs by 32% ($180K annually) while improving disaster recovery RTO from 8 hours to 45 minutes
Adapt the pattern; do not copy facts that are not yours.
- 4
Implemented centralized monitoring with Datadog across all production systems, reducing mean time to detection (MTTD) from 25 minutes to under 3 minutes
Adapt the pattern; do not copy facts that are not yours.
Practical writing guidance
- 1
Quantify uptime and reliability: '99.98% uptime across 200+ production servers' is more persuasive than 'Maintained servers'
- 2
Highlight automation achievements — 'Automated server provisioning with Ansible, reducing deployment time from 4 hours to 15 minutes'
- 3
Include certifications prominently — CompTIA Server+, RHCSA, AWS SysOps, and MCSA are highly valued by hiring managers
- 4
Describe the scale of your environment: number of servers, users supported, data centers managed
- 5
Mention security practices — patch management cadence, vulnerability remediation SLAs, or compliance frameworks (SOC 2, HIPAA)
- 6
Show cloud migration experience if applicable — this is the most in-demand skill for modern sysadmin roles
How to write a system administrator resume
Describe the environment before describing yourself
Give patching and backups the numbers auditors ask for
Frame hybrid experience so on-prem depth reads as an asset
Frequently Asked Questions
What skills should a system administrator resume highlight?
Focus on operating systems (Linux, Windows Server), virtualization (VMware, Hyper-V), cloud platforms (AWS, Azure), automation (Ansible, Terraform, PowerShell), networking, security hardening, and monitoring tools. Organize skills by category and align them with the specific job posting.
Are certifications important for system administrator resumes?
Yes. Certifications like CompTIA Server+, RHCSA/RHCE, AWS SysOps Administrator, and Microsoft Azure Administrator carry significant weight, especially when changing employers. They validate skills that are difficult to assess from a resume alone and often clear automated screening filters.
How do I describe sysadmin responsibilities without sounding generic?
Attach numbers to everything: how many servers, how many users, what uptime percentage, how much cost saved. Replace 'Managed servers' with 'Administered 300+ Linux servers across 3 data centers supporting 2,500 users with 99.98% uptime.' Specifics build credibility.
Should I include on-call or incident response experience?
Absolutely. Mention your on-call rotation structure, incident response metrics (MTTR, MTTD), and any post-incident improvements you drove. This demonstrates operational maturity and is highly valued for infrastructure roles.