System Administrator

ClientMind Recruiting Inc.; Greenbelt (MD); On-site; USD 80,000 - 100,000; Full time

Benefits offered by this job

Medical insurance

Vision insurance

401(k)

Paid maternity leave

Paid paternity leave

Tuition assistance

Job summary

A technology solutions provider is looking for a System Administrator to manage Microsoft 365 environments and ensure security across systems. The role involves hands-on administration, user support, and compliance with frameworks like NIST. Candidates should have a strong background in system administration, Microsoft 365, and networking fundamentals. Excellent communication and organizational skills are essential, as well as experience in a regulated sector. This position offers full-time employment with benefits such as medical and vision insurance.

Qualifications

• Strong background in system administration and security within regulated environments.
• Experience with Microsoft 365 administration across various platforms.
• Understanding of networking fundamentals and firewalls.

Responsibilities

• Administer and maintain Microsoft 365 cloud environments.
• Manage system administration tasks across Windows and Linux.
• Implement security controls aligned with NIST frameworks.

Skills

System administration

Security practices

Microsoft 365 administration

Networking fundamentals

Virtualization technologies

Communication skills

Tools

Microsoft 365

pfSense

OpenVPN

VMware

Docker

Job description

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.

Key Responsibilities

• Administer and maintain Microsoft 365 cloud environments, including Azure, Entra ID, Defender, Endpoint Manager, Exchange, Teams, SharePoint, and OneDrive.
• 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.

Required Skills & Experience

• 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 (pfSense 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.

Preferred Experience

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

Seniority level

• Mid‑Senior level

Employment type

• Full‑time

Job function

• Information Technology

Industries

• Defense and Space Manufacturing

Benefits

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