Senior System Administrator

We are seeking a System Administrator with demonstrated experience supporting secure, complex, and fast-paced technical environments. This role blends system administration, network awareness, cybersecurity compliance, and user support to ensure mission systems operate at peak efficiency., * Manage, configure, and maintain Windows and Linux-based systems across development, integration, and test environments.

• Deploy and recover workstations for onboarding and offboarding in accordance with program configuration control processes.
• Monitor system and server health; identify and remediate system issues proactively.
• Manage IT assets in alignment with inventory and accountability requirements.
• Install, configure, and maintain hardware, storage solutions, and software used in modeling, simulation, and test environments.
• Maintain and administer Active Directory, Group Policy, DNS, DHCP, and Domain Services for isolated and enterprise-aligned networks.
• Apply STIGs, security patches, and configuration baselines to ensure RMF compliance.
• Support virtualization technologies including VMware, Hyper-V, and cloud-based instances where applicable.
• Assist engineers with system-level troubleshooting for HWIL labs, simulation tools, and specialized program equipment.
• Support Microsoft Teams Rooms, video conferencing systems, and collaboration tools used across program stakeholders.
• Create and maintain technical documentation for repeatable processes, configuration standards, and system baselines.
• Coordinate with external service providers and government partners to troubleshoot, resolve, and validate system issues., * Manage, configure, and maintain Windows-based systems across STRATTOS development, integration, and test environments.
• Deploy and recover workstations for onboarding and offboarding in accordance with program configuration control processes.
• Monitor system and server health; identify and remediate system issues proactively.
• Manage IT assets in alignment with STRATTOS inventory and accountability requirements.
• Install, configure, and maintain hardware, storage solutions, and software used in modeling, simulation, and test environments.
• Maintain and administer Active Directory, Group Policy, DNS, DHCP, and Domain Services for isolated and enterprise-aligned networks.
• Apply STIGs, security patches, and configuration baselines to ensure RMF compliance.
• Support virtualization technologies including VMware, Hyper-V, and cloud-based instances where applicable.
• Assist engineers with system-level troubleshooting for HWIL labs, simulation tools, and specialized program equipment.
• Support Microsoft Teams Rooms, video conferencing systems, and collaboration tools used across program stakeholders.
• Create and maintain technical documentation for repeatable processes, configuration standards, and system baselines.
• Coordinate with external service providers and government partners to troubleshoot, resolve, and validate system issues.

Systems Administration/Management, Systems Administration/Management, Customer Support/Service, System Operations, Internet Security, Linux Operating System, Integration Testing, Microsoft Windows System Administration, Onboarding, Computer Workstations, * Bachelor’s Degree in Information Technology or related field; equivalent experience may be considered.

• 3-5 years of relevant experience supporting Windows workstations and servers in a secure IT environment.
• Proficiency with Microsoft technologies including Active Directory, O365, Teams, Microsoft Endpoint Configuration Manager, Azure, and Intune.
• Demonstrated experience in physical, virtual, and cloud-based system administration.
• Strong PowerShell scripting skills for automation and system management.
• Experience supporting DoD or government programs is highly preferred.
• Understanding of cybersecurity compliance frameworks such as RMF, STIGs, and ACAS.
• Strong organizational skills, attention to detail, and ability to work independently.
• Excellent written and verbal communication skills.
• U.S. citizenship and Active Secret security clearance is required

Additional Preferred Experience

• Familiarity with secure lab environments or HWIL test facilities.
• Experience with imaging tools, configuration management, and automated deployment technologies.
• Ability to support cross-functional teams including engineers, analysts, and program leadership.

operational impact., * Bachelor’s Degree in Information Technology or related field; equivalent experience may be considered.

• 3-5 years of relevant experience supporting Windows workstations and servers in a secure IT environment.
• Proficiency with Microsoft technologies including Active Directory, O365, Teams, Microsoft Endpoint Configuration Manager, Azure, and Intune.
• Demonstrated experience in physical, virtual, and cloud-based system administration.
• Strong PowerShell scripting skills for automation and system management.
• Experience supporting DoD or government programs is highly preferred.
• Understanding of cybersecurity compliance frameworks such as RMF, STIGs, and ACAS.
• Strong organizational skills, attention to detail, and ability to work independently.
• Excellent written and verbal communication skills.

Additional Preferred Experience

• Familiarity with secure lab environments or HWIL test facilities.
• Experience with imaging tools, configuration management, and automated deployment technologies.
• Ability to support cross-functional teams including engineers, analysts, and program leadership.

Whether you’re looking to launch a new career or grow an existing one, Trideum is the type of company where you can balance great work with great life because we believe that taking care of our people is the right thing to do. Trideum offers:

• Competitive compensation.
• Traditional benefits such as medical, dental, vision, life, disability, and 401k matching.
• Paid leave and the ability to cash out leave.
• Free access to certified financial planners, wellness and support services, and discount programs.
• Education assistance and professional development opportunities.
• And much more.

Trideum Corporation is a 100% employee-owned company, committed to embracing the world’s toughest challenges with a servant’s heart. Through dedicated hard work and commitment, we provide distinctive quality and unparalleled customer service in all aspects of our business. We also know that our employees are the key to our success, and it is our mission to take care of them so they can take care of our customers and communities where we live, work, and play.