TS/SCI Systems Administrator — Windows, Linux & VMware

ClearEdge; Washington (District of Columbia); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Training benefit

401k contribution

Health allowance

Tech allowance

Lab access

Job summary

ClearEdge in Washington, DC, is seeking a Systems Administrator to ensure reliable, secure operations across a complex IT environment that supports mission-critical needs. You’ll design, maintain, and enhance systems with users, engineers, and leadership to keep missions moving forward.

The role requires strong Windows and Linux administration, VMware experience, and the ability to gather requirements from customers and deliver functional, mission-focused solutions.

Qualifications

• Active or current TS/SCI clearance with Polygraph.
• Master’s degree + 3 years of experience, or Bachelor’s degree + 5 years, or Associate’s + 7 years, or HS/GED + 9 years.
• IAT Level II certification.
• Proven system administration, network management, and user support in secure environments.
• Strong VMware administration skills.
• Experience with hardware and desktop support, including thin client networking and administration.
• Proficiency in Windows system administration (Active Directory, Group Policy, etc.) and Linux environments.
• Strong understanding of server, storage, and network components.
• Excellent communication skills, with the ability to work directly with customers and technical teams.

Responsibilities

• Support the implementation, troubleshooting, and maintenance of IT systems and infrastructure.
• Manage daily operations of system architecture to ensure stability, availability, and performance.
• Administer and maintain mission systems, including Microsoft Domain Services, Group Policy Objects (GPO), VMware, Cisco Route/Switch, and firewall management.
• Configure and maintain Windows and Linux servers, user accounts, and access controls.
• Perform system backups, recovery, and patch management across distributed nodes.
• Monitor and analyze system performance, identifying and resolving issues to optimize reliability and efficiency.
• Provide hands‑on technical assistance, troubleshooting user and system‑level issues.
• Collaborate with cross‑functional teams to define requirements, test updates, and deploy new solutions.
• Maintain accurate documentation for systems, processes, and procedures.
• Stay current on emerging technologies, recommending improvements to enhance performance and security.

Skills

Windows administration

Linux administration

VMware

Customer collaboration

Troubleshooting

Agile

Documentation

Communication skills

Education

Master's degree

Bachelor's degree

Associate's degree

High School

Tools

VMware vSphere

Active Directory

Group Policy

Cisco IOS

Firewall management

CI/CD tooling

Job description

ClearEdge in Washington, DC, is seeking a Systems Administrator to ensure reliable, secure operations across a complex IT environment that supports mission-critical needs. You’ll design, maintain, and enhance systems with users, engineers, and leadership to keep missions moving forward.

The role requires strong Windows and Linux administration, VMware experience, and the ability to gather requirements from customers and deliver functional, mission-focused solutions.