System Administrator CV Example
A system administrator CV is built on proving how continuously and securely you keep infrastructure running. Employers want to see which systems you managed, how you maintained uptime and how you responded to incidents — backed by measurable results. The example below shows how to demonstrate technical depth with numbers. Keep it one page, ATS-friendly and free of photos or personal details.
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Ryan Foster
System Administrator (Linux & Windows)
Manchester, UK
Summary
6 years of system administration experience managing Linux and Windows server environments, virtualisation and backup infrastructure. Maintained 99.9% uptime across a 40+ server estate; cut incident response time significantly through monitoring and automation. Focused on keeping infrastructure both available and resilient with security patching and disaster recovery planning.
Experience
Senior System Administrator · Veritek IT Services
Mar 2021 – Present- ›Managed an estate of 40+ physical/virtual servers, maintaining an average of 99.9% uptime year on year.
- ›Deployed centralised monitoring with Zabbix; cut average incident response time from 45 minutes to 12 minutes with critical alerting.
- ›Automated server provisioning and patching with Ansible, reducing manual workload by ~10 hours per week.
System Administrator · Anadolu Software
Sep 2018 – Feb 2021- ›Managed resource allocation and backups for 60+ virtual machines on VMware vSphere.
- ›Implemented a 3-2-1 backup strategy with Veeam; recovered with zero data loss during two real disaster events.
- ›Standardised access management for a 300+ user environment using Active Directory and group policies.
Skills
Education
BSc Computer Science · University of Sheffield (2014 – 2018)
What to Highlight in a System Administrator CV
- ✓Put the scale of the environment you ran (server count, user count) and your uptime figure in your summary — it is your strongest proof.
- ✓Show a RESULT in every bullet instead of "managed": uptime %, response time, hours saved through automation.
- ✓List your certifications (RHCSA, MCSA, ITIL) clearly in a separate section — recruiters and ATS scan for these.
- ✓Match the skills on your CV to the tech stack in the job ad (cloud, containers, monitoring tools).
Technical Skills
- •Linux/Windows server administration
- •Virtualisation (VMware/Hyper-V)
- •Scripting/automation (Bash, PowerShell, Ansible)
- •Monitoring (Zabbix/Nagios)
- •Backup and disaster recovery
- •Networking basics (TCP/IP, DNS, DHCP)
Soft Skills
- •Calm under pressure during incidents
- •Analytical problem solving
- •Documentation discipline
- •Team communication
- •Continuous learning
Common Mistakes
- ✕Listing technologies only, without saying what you managed or what impact you had.
- ✕Skipping measurable data such as uptime, incident count or user numbers.
- ✕Burying certifications at the bottom of the CV or leaving them out entirely.
Frequently Asked Questions
Which certifications stand out on a system administrator CV?
RHCSA/RHCE (Linux), MCSA/Windows Server, ITIL Foundation and cloud certifications (AWS/Azure) are valued. List the ones you hold in a dedicated section with dates and issuing body.
I want to move into DevOps — how should I position my CV?
Highlight automation (Ansible/Terraform), CI/CD and container (Docker/Kubernetes) experience. Emphasising scripting and infrastructure as code (IaC) strengthens the transition.
How long should a system administrator CV be?
One page is ideal if you have fewer than 8 years of experience. Save space by grouping long technology lists under a "Skills" section.
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