Systems Administrator – Classified Environment (Mid/Senior)

About the role

DPG Solutions is seeking a mid‑ to senior‑level Systems Administrator to support a classified customer environment in Springfield, Virginia. This hands‑on role involves securing, operating, troubleshooting, and maintaining enterprise Windows infrastructure and mission‑critical systems.

Key responsibilities

• Perform system and security administration functions within a classified customer environment.
• Administer Windows Server, Active Directory, VMware, and Microsoft System Center tools.
• Plan, test, install, configure, and integrate operating systems and third‑party software.
• Monitor system resources, apply patches, and maintain security baselines.
• Provide technical guidance to junior administrators and collaborate with multidisciplinary teams.

Required profile

• 5+ years of professional systems administration, infrastructure, or security experience.
• Active TS/SCI clearance with an adjudicated Full Scope Polygraph.
• US citizenship and a customer‑approved security certification (Security+, SSCP, CISSP, or CASP).

Required skills

• Windows Server administration
• Active Directory management
• VMware virtualization
• Microsoft System Center Configuration Manager
• Microsoft System Center Operations Manager

What we offer

• Company‑funded 401(k) profit sharing (25% of base pay)
• Full healthcare coverage with company HSA contribution
• Annual performance bonuses
• 250 hours PTO (up to 40 hours carry‑over)
• Certification and tuition reimbursement