System Administrator - TS/SCI Clearance

CO1002 CDW Government, LLC; Washington (District of Columbia); On-site; USD 145,000 - 175,000; Full time

Benefits offered by this job

Benefits overview

Job summary

CO1002 CDW Government, LLC seeks a System Administrator to support Windows Server and desktop environments in a secure federal setting. You will manage Active Directory, patching, and security baselines while coordinating with cybersecurity, network, and engineering teams.

The role requires TS/SCI clearance, U.S. citizenship, and 4+ years of enterprise IT experience. Experience with VMware/Hyper‑V and SCCM is a plus, with a focus on compliant processes and documentation.

Qualifications

• Top Secret/Sensitive Compartmented Information (TS/SCI) clearance is required at hire.
• 4+ years of relevant experience in systems administration or enterprise IT operations.
• Hands-on experience supporting Windows Server and Windows desktop environments.
• Experience with AD, DNS/DHCP, and Group Policy for enterprise environments.
• Experience with patching, software installation, and change management in secure settings.
• Familiarity with security and configuration baselines, logging, and documentation.

Responsibilities

• Administer and support Windows Server and Windows desktop systems across secure enterprise environments.
• Create, modify, and maintain AD users, groups, permissions, and OUs.
• Apply system patches and configuration changes per maintenance procedures.
• Assist with Group Policy management and workstation configuration.
• Monitor system health, review logs, respond to alerts, and escalate complex issues.
• Perform troubleshooting for common hardware, software, OS, authentication, and connectivity issues.
• Support vulnerability remediation activities and document remediation status.
• Maintain accurate technical documentation and inventory records.
• Assist with backups, restore testing, and routine operational tasks.
• Coordinate with help desk, cybersecurity, network, and engineering teams to ensure secure operations.

Skills

Active Directory

Group Policy

DNS

DHCP

PowerShell

Windows Server

Windows Desktop

Troubleshooting

Security best practices

Tools

VMware

Hyper-V

SCCM/MECM

Patch management tooling

Job description

The System Administrator will support daily administration, maintenance, troubleshooting, and security of Windows-based systems in a secure federal environment. This role is ideal for an administrator with hands‑on experience supporting enterprise infrastructure who can work both independently and under the guidance of senior technical staff. The position requires an active Top Secret/Sensitive Compartmented Information (TS/SCI) clearance and a strong understanding of Windows system operations, user support, patching, documentation, and secure configuration practices.

What You Will Do

• Administer and support Windows Server and Windows desktop systems across secure enterprise environments.
• Create, modify, and maintain user accounts, groups, permissions, organizational units, and access controls within Active Directory.
• Apply approved system patches, updates, and configuration changes in accordance with established maintenance procedures.
• Assist with Group Policy management, workstation configuration, software installation, and system baseline maintenance.
• Monitor system health, review logs, respond to alerts, and elevate complex issues to senior administrators or engineering teams as appropriate.
• Perform troubleshooting for common hardware, software, operating system, authentication, and connectivity issues.
• Support vulnerability remediation activities, including reviewing scan findings, applying fixes, and documenting remediation status.
• Maintain accurate technical documentation, including system configurations, troubleshooting steps, inventory records, and standard operating procedures.
• Assist with backups, restore testing, account audits, system checks, and routine operational tasks.
• Coordinate with help desk, cybersecurity, network, and engineering teams to support reliable and secure system operations.

What We Expect of You

• Active TS/SCI clearance is required at the time of hire.
• U.S. citizenship is required due to federal contract and clearance requirements.
• 4+ years of relevant experience in systems administration, desktop/server support, or enterprise IT operations.
• Hands‑on experience supporting Microsoft Windows Server and Windows desktop environments.
• Working knowledge of Active Directory, Group Policy, DNS, DHCP, user permissions, and basic enterprise authentication concepts.
• Experience performing system patching, software installation, troubleshooting and routine maintenance activities.
• Ability to follow change management, security, documentation, and operational procedures in a secure environment.
• Strong customer service, troubleshooting, communication, and documentation skills.
• Ability to work collaboratively with senior administrators, cybersecurity teams, network teams, and end users.
• DoD 8570/8140 IAT Level II certification, such as Security+ CE, or the ability to obtain/maintain required compliance certification, is a plus.
• Experience supporting VMware, Hyper‑V, or other virtualized server environments, is a plus.
• Familiarity with DISA STIGs, vulnerability scanning tools, secure configuration standards, and remediation workflows, is a plus.
• Experience using PowerShell for basic administration, reporting, or automation tasks, is a plus.
• Exposure to Microsoft Endpoint Configuration Manager, SCCM, MECM, WSUS, or similar patching and deployment tools, is a plus.
• Basic understanding of backup and recovery processes, file services, print services, and enterprise monitoring tools, is a plus.

Pay range: $145,000 – $175,000 depending on experience and skill set.

Benefits overview: CDW Benefits Salary ranges may be subject to geographic differentials. CDW is committed to being an AI‑fluent organization We’re looking for people who bring curiosity, a learner’s mindset, and a willingness to engage with ever‑evolving technology and tools. We value adopting AI as a partner, openness to experimentation, and a shared interest in learning together on AI. Our goal is to create a culture where AI enhances—not replaces—human creativity and decision‑making. You don’t need to be an expert today; what matters is your readiness to explore, adapt, and grow with us as we integrate AI responsibly and effectively into our work. Additionally, CDW is committed to fostering an equitable, transparent, and respectful hiring process for all applicants. During our application process, our goal is to understand your experience, strengths, skills, and qualifications. As an AI forward company, we see AI not just as a tool, but as a catalyst for new ways of thinking, creating, and communicating. We encourage candidates to embrace an AI mindset, one that’s curious, adaptive, and ready to explore what’s possible. We welcome thoughtful use of AI to expand your perspective and elevate how you share your story, while ensuring your application remains rooted in your own background, judgment, and voice.

About Us CDW is a Fortune 500 technology solutions provider that helps businesses, government, education, and healthcare organizations achieve what’s possible through technology. What makes CDW different isn’t just what we do—it’s how we do it. At CDW we act as one—building trust, speaking candidly, and working together to achieve more. We play to win—focusing on what matters most and delivering for our customers. And we think forward—staying curious, moving fast, and continuously learning. We believe meaningful work happens when people feel supported, heard, and empowered to contribute. That’s why we think of ourselves as coworkers, not just employees—working together to solve complex challenges and deliver real impact for our customers and communities. As a full‑stack, full‑lifecycle technology partner, CDW brings deep expertise, strong relationships, and broad industry knowledge to help turn ideas into outcomes. When you join CDW, you become part of a collaborative environment where your work matters, your growth is supported, and your contributions help shape what’s next. Together, we deliver the full promise of what technology can do. Together, we Make Amazing Happen.

CDW is an equal opportunity employer. All qualified applicants will receive consideration for employment without regards to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status or any other basis prohibited by state and local law.

At CDW, we make technology work so people can do great things. We are a leading multi‑brand technology solutions provider to business, government, education and healthcare customers in the United States, the United Kingdom and Canada. Our coworkers across the globe are working together to bring technology to life for our customers by solving complicated IT business challenges, providing outstanding service, and orchestrating the technology landscape to optimize our customers’ performance.