> Markdown version of [/jobs/ext/4694803-it-system-administrator](https://www.wearedevelopers.com/jobs/ext/4694803-it-system-administrator). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# IT System Administrator

- **Company:** SMS Data Products Group, Inc.
- **Location:** Fairfax County, VA, United States
- **Experience:** Experienced
- **Salary:** $60,000 - $90,000
- **Contract:** Permanent contract
- **Skills:** Proxmox, Microsoft Windows, Artificial Intelligence, Amazon Web Services, Backup Devices, Business Software, Cloud Computing, Cyber Security, Information Systems, Dynamic Host Configuration Protocol, Domain Name System (DNS), GNU Compiler Collection, Information Technology Audit, Virtual Private Networks (VPN), Python (Programming Language), Linux Servers, Microsoft Software, Networking Basics, Windows PowerShell, Salesforce.Com, Microsoft SharePoint, Short Message Service, Virtual Local Area Networks, Virtualization Technology, Scripting, Firewalls (Computer Science), Microsoft InTune, Information Technology, Data Management, Hardware Infrastructure, Network Server
- **Published:** November 12, 2026
- **Apply:** https://www.careerbuilder.com/job-details/it-system-administrator-mclean-va--26d3ed08-073a-4f13-a08a-e75c20dcb589

## About the Role

Systems Administration/Management, Information Technology & Information Systems, Information Systems/Technology IS/IT Administration, GNU C Compiler, Microsoft Product Family, Short Messaging Service (SMS), Information Technology & Information Systems, Systems Administration/Management, Amazon Web Services (AWS), Customer Support/Service, * 4+ years of IT experience, including at least two years administering systems

 * Hands-on experience in at least three of these areas: Microsoft 365 and Entra ID, endpoint management, virtualization and servers, networking, cloud platforms, scripting, or business applications.
 * Working knowledge of PowerShell and networking fundamentals (DNS, DHCP, VLANs, VPN, and firewalls).
 * Strong customer service skills and clear written communication.
 * Must be a U.S Citizen

Preferred Certifications

 * CompTIA A+CE, Network+CE, or Security+CE
 * ITIL 4 Foundation or newer
 * Relevant Microsoft certifications such as MD-102 (Endpoint Administrator).
 * Willingness to obtain relevant certifications as needed

## Description

The I.T. Corporate team at SMS is responsible for supporting multiple areas across different functions and platforms. As the IT System Administrator, you will administer systems across Microsoft 365 (commercial and GCC High), AWS, on-premises infrastructure, and working on our service desk team. The role is well suited to an experienced support professional who takes ownership of issues, communicates clearly with users, and adapts to evolving tools and processes as the business grows., * Administer Microsoft 365 across commercial and GCC High tenants, including Entra ID, Exchange, Teams, SharePoint, and Intune.

 * Resolve Tier 1 and Tier 2 support requests and assist in building out our new Halo PSA service desk.
 * Maintain on-premises and cloud infrastructure, including Proxmox, Windows and Linux servers, backups, and AWS production workloads.
 * Manage business platforms such as SharePoint, Fillout and Zite, Notion, and Salesforce.
 * Support contract programs, including the lifecycle of contractor-furnished equipment and hands-on support for program teams.
 * Build automations and integrations with PowerShell, Python, or low-code tools, and assist in rolling out new AI-enabled to
 * Keep systems audit-ready under ISO/IEC 20000-1, ISO/IEC 27001, and CMMC Level 2
 * Participates in team initiatives, process improvements, and the rollout of new tools and technologies, adapts to changing responsibilities as the department and business evolve, and follows IT security, compliance, and data-handling policies in the performance of all duties.