Professional Resume Template for
IT System Administrator
Marcus J. Sterling
Chicago, IL
(312) 555-0143
marcus.sterling@email.com
linkedin.com/in/marcus-sterling-sysadmin | github.com/marcussterling | sterlingops.dev
Professional Summary
Systems-oriented IT System Administrator with 5 years of experience managing enterprise infrastructure, server networks, and SaaS integrations within fast-paced logistics environments. Specializes in administering Active Directory, virtualization platforms, and cloud environments to maximize operational efficiency and reliability. Proven track record of maintaining 99.99% system uptime, reducing network latency by 28%, and automating patch deployment to save 12 hours of manual maintenance weekly. Proficient in Windows Server, Linux, VMware, AWS, PowerShell scripting, and Microsoft 365 administration.
Work Experience
IT System Administrator — Apex Logistics Solutions
Chicago, IL | January 2024 – Present
- Maintained 99.99% network and server uptime across 3 regional distribution centers, configuring VMware ESXi hosts and vCenter to support 450+ physical and virtual servers.
- Automated server provisioning and weekly patching using PowerShell and Ansible, reducing average deployment time by 65% and saving 12 hours of manual labor per week.
- Oversaw the migration of on-premises exchange infrastructure to Microsoft 365 for 600 active users, completing the transition 14 days ahead of schedule with zero data loss.
- Re-architected enterprise firewall rules and VPN configurations for 180 remote employees, reducing security incident alerts by 42% and ensuring SOC 2 compliance alignment.
Associate System Administrator — Bluefin Retail Technologies
Chicago, IL | June 2021 – December 2023
- Administered Active Directory and group policies for 350 employee workstations, resolving over 250 access permission tickets monthly with a 98% SLA completion rate.
- Configured Veeam Backup & Replication protocols for critical corporate databases, reducing data recovery point objective (RPO) times by 45% across 5 storage networks.
- Upgraded local network infrastructure by deploying 14 new Cisco switches and routers, improving internal data transfer speeds by 30% across the corporate headquarters.
- Conducted weekly security audits of patch compliance for 120 endpoints, raising system compliance from 82% to 99.5% within a 6-month period of implementation.
Education
Bachelor of Science in Network Technologies
DePaul University · Chicago, IL · 2021
Skills
System Administration, Active Directory, Group Policy (GPO), Virtualization (VMware vSphere/ESXi), Cloud Computing (AWS), Network Infrastructure (Cisco, TCP/IP, VPN), Scripting & Automation (PowerShell, Bash, Ansible), Backup & Disaster Recovery (Veeam), Microsoft 365, Windows Server, Linux (RHEL, Ubuntu), Security compliance, SOC 2 alignment, Hardware troubleshooting, ITIL v4
Projects
Active Directory Domain Consolidation
Role: Lead Systems Administrator
Tools: Active Directory, PowerShell, Windows Server 2022
Consolidated 3 separate Active Directory domains into a single forest for 600 users, reducing login authentication latency by 35% and streamlining user access control.
Virtualization Infrastructure Upgrade
Role: IT System Administrator
Tools: VMware ESXi, vCenter, Dell PowerEdge, SAN Storage
Upgraded 12 legacy servers to modern high-performance virtual hosts, reducing physical datacenter power consumption by 28% and increasing server processing capacity by 50%.
Certifications
- Microsoft Certified: Windows Server Hybrid Administrator Associate (2023)
- CompTIA Security+ (2022)
Additional information
- Languages: English (Native)
- Volunteer Work: Mentored 15 high school students in local computing and coding workshops (2022–present)
- Availability: 2 weeks notice
Job Market Insights
Market data and opportunities for
IT System Administrator
Job Market Insights
$80,000
-
$120,000
Avg:
$98,000
Growth Outlook:
The employment of network and computer systems administrators is projected to decline by 4% from 2024 to 2034 in the United States. Despite this decline, the demand for systems administrators remains steady due to the constant need for maintaining existing technology networks and managing complex cloud migration setups. An average of 14,300 job openings are projected each year to replace workers who transfer to other occupations or retire, ensuring a continuous path for skilled IT professionals.
4% decline (14,300 annual openings, BLS 2024-2034)
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