System Administrator

SimVentions, Inc; Lexington Park (MD); On-site; USD 70,000 - 100,000; Full time

Job summary

SimVentions, Inc. in Maryland is seeking a System Administrator to support DoD programs within our IT & Cybersecurity team.

You will install, configure, secure, and maintain Windows and Linux servers, networks, and cloud environments that support mission-critical systems. The role emphasizes managing Active Directory, virtualization, backups, patching, and cybersecurity hardening using STIGs and RMF, with collaboration across engineers and cybersecurity professionals in a values-driven,

Qualifications

• Experience administering Windows and Linux servers.
• Hands-on AD, backups, patching, and monitoring.
• Familiarity with STIGs and RMF security frameworks.
• Ability to work in a DoD-focused environment with integrity.

Responsibilities

• Install, configure, secure, and maintain Windows/Linux servers, networks, and cloud environments.
• Manage Active Directory services and virtualization platforms.
• Implement backups, patching, and security hardening according to STIGs and RMF.

Skills

Windows Server

Linux Server

Active Directory

Virtualization

Backups & Recovery

Patching & Patch Management

Cybersecurity hardening (STIGs/RMF)

DoD/Defense IT context

Job description

SimVentions, Inc. is seeking a System Administrator to support Defense & Aerospace programs within our IT & Cybersecurity team. In this role, you will install, configure, secure, and maintain Windows/Linux servers, networks, and cloud environments that enable mission-critical DoD systems. Responsibilities include managing AD, virtualization, backups, patching, and cybersecurity hardening using STIGs and RMF practices. You’ll collaborate with engineers and cybersecurity professionals in a values-driven, family-like culture focused on integrity, teamwork, and national defense.