Systems Administrator - Top-Secret a must!

Reston Consulting Group; Washington; On-site; USD 90,000 - 108,000; Full time

Job summary

A federal contracting firm in Washington, DC is looking for a Systems Administrator with an active Top-Secret clearance. This full-time role will involve maintaining Windows servers and providing user support in a dynamic environment. Candidates should have a Bachelor's degree in Computer Science and 3-5 years of experience in systems administration. The position requires close collaboration with IT managers and proactive system management.

Qualifications

• Active Top-Secret clearance required.
• 3–5 years of experience in systems administration.
• Proven experience as a Windows Administrator.

Responsibilities

• Install, configure, and maintain Windows servers.
• Provide technical support for users.
• Monitor system performance and maintain security.

Skills

Windows Server administration

Problem-solving

Communication

Troubleshooting

Network security systems

Education

Bachelor’s degree in Computer Science

Tools

CompTIA Security+

Windows Server 2012R2

Windows Server 2016

Windows Server 2019

Job description

Systems Administrator - Top-Secret a must!

Location: Washington, DC – Onsite (Five days per week)
Clearance Requirement: Active Top-Secret Clearance (U.S. Citizen or Permanent Resident)
Salary Range: $90,000 – $108,000

Who We Are

At RCG, we’re more than just a federal contracting company — we’re a team of innovators, problem-solvers, and collaborators. Proudly Certified™ as a Great Place to Work®, we are committed to fostering a culture where people can grow, contribute, and thrive while delivering exceptional IT services to our government clients.

The Opportunity

We are currently seeking a Systems Administrator (Windows) to join our team in Washington, DC. This full-time role supports an ongoing government contract and requires five days per week on-site. There are no remote work options for this position.

Please note: Due to the secure nature of this government agency, all candidates must be U.S. citizens or Permanent Residents and hold an active Top-Secret clearance. The successful candidate will receive a contingent offer based on the outcome of a government background check. This process may take several weeks, and candidates cannot begin employment until it is successfully completed.

Role Overview

The Systems Administrator (Windows) will be responsible for the installation, configuration, maintenance, and support of Windows servers and virtual environments. This position requires strong knowledge of Windows operating systems, virtualization technologies, and a proactive approach to ensuring system stability, availability, and security.

Primary Responsibilities

• Install, configure, and maintain Windows servers and virtual environments.
• Assess system stability, security, and scalability of installed Windows systems.
• Provide technical support for users and back-end systems.
• Troubleshoot and resolve system and server errors.
• Review error logs and respond to user-reported issues.
• Monitor and update the Windows codebase.
• Manage user access and system permissions.
• Monitor system performance and perform regular maintenance.
• Maintain server security, apply patches, and perform backups.
• Collaborate with IT managers on system and server upgrades.

Qualifications

• Active Top-Secret Clearance required.
• Bachelor’s degree in Computer Science, Information Technology, or related field.
• 3–5 years of experience in systems administration or a related IT field.
• CompTIA Security+ certification required.
• Strong knowledge of Windows Server 2012R2, 2016, 2019 environments.
• Proven experience as a Windows Administrator.
• Familiarity with databases, patch management, and LAN/WAN networks.
• Knowledge of network security systems, intrusion detection, and data backup.
• Excellent problem-solving, communication, and troubleshooting skills.
• Ability to work independently and collaboratively in a dynamic environment.

Preferred Certifications

• Microsoft Certified: Windows Server Hybrid Administrator Associate (or equivalent).

Additional Information

Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions of this position.

RCG, Inc. is proud to be an Equal Opportunity Employer. We do not discriminate against qualified individuals based on their status as protected veterans or individuals with disabilities, and we prohibit discrimination against all individuals based on race, color, religion, sex, sexual orientation/gender identity, or national origin.