System Administrator

Clientmind Recruiting is seeking a System Administrator to support systems administration, networking, and security across a Microsoft-centric environment for a client in the Greenbelt, MD area. This role combines hands‑on systems management with end‑user support and will play a key part in maintaining a secure, reliable infrastructure.

• Administer and maintain Microsoft 365 cloud environments, including Azure, Entra , Defender, Endpoint Manager, Exchange, Teams, SharePoint, and One Drive.
• Manage system administration tasks across Windows and Linux environments, including configuration, maintenance, patching, and troubleshooting.
• Support implementation and management of security controls aligned with frameworks such as NIST 800-53
  , NIST 800-171
  , and CMMC
  .
• Oversee networking and network security, including firewalls, VPNs, WiFi, VLANs, and network segmentation.
• Manage virtualization platforms (VMware, Docker, and/or Azure-based virtualization).
• Support backup and disaster recovery systems, monitoring, and incident response processes.
• Provide technical support to internal users and maintain detailed documentation.

• Strong background in system administration and security within regulated or compliance‑driven environments.
• Experience with Microsoft 365 administration across the full suite of platforms and services.
• Solid understanding of networking fundamentals, firewalls (pf Sense preferred), VPNs (OpenVPN preferred), and segmentation strategies.
• Familiarity with virtualization technologies—on‑premises and cloud‑based.
• Experience applying DISA STIGs or similar hardening standards.
• Strong communication, organization, and time‑management skills.

• Dev Ops tools such as Git or SVN.
• Android device management and MDM solutions.
• Intrusion detection systems, SIEM tools, or SOC workflows.

• Mid‑Senior level

• Full‑time

• Information Technology

• Defense and Space Manufacturing

• Medical insurance
• Vision insurance
• 401(k)
• Paid maternity leave
• Paid paternity leave
• Tuition assistance