Mission-Critical DoD Systems Administrator (Secret)

Mtsi Va; Huntsville (AL); On-site; USD 95,000 - 130,000; Full time

Job summary

MTSI seeks an IT Systems Administrator to join the Digital Engineering Environment team in Huntsville, supporting the Space-Based Interceptor Program Office. You will manage and secure DoD-grade IT infrastructure, ensuring reliability and interoperability across Windows and Linux systems.

Responsibilities include RMF/STIG compliance, virtualization management (VMware/Hyper-V/KVM), patching, and disaster recovery planning, with collaborations across engineers and program stakeholders.

Qualifications

• Bachelor's degree with related experience.
• Experience as an IT Systems Administrator in mission-critical DoD or aerospace environments.
• Proficiency administering Windows and Linux systems; familiarity with network protocols and security practices.
• Experience with virtualization technologies (VMware, Hyper-V, KVM).
• Working knowledge of RMF, DISA STIGs, and NIST 800-53; CompTIA Security+ is required.

Responsibilities

• Install, configure, and maintain operating systems, hardware, virtual environments, and network devices to support the program.
• Monitor system performance and resolve issues to minimize disruptions; work with cross-functional teams and vendors.
• Enforce security measures including access controls, endpoint protections, patch management, and vulnerability remediation per DoD standards.
• Maintain and support virtualized environments (VMware, Hyper-V, KVM) for program needs.
• Develop and test backup and disaster recovery procedures; perform DR exercises.
• Maintain network connectivity and secure communications; configure switches/routers/firewalls.
• Create and maintain technical documentation and ensure DoD compliance (RMF/STIGs).
• Collaborate with stakeholders to recommend system improvements and upgrades.

Skills

Windows OS

Linux OS

TCP/IP

DNS

Routing

RMF

DISA STIGs

NIST 800-53

CompTIA Security+

Education

Bachelor's degree

Tools

VMware

Hyper-V

KVM

Job description

MTSI seeks an IT Systems Administrator to join the Digital Engineering Environment team in Huntsville, supporting the Space-Based Interceptor Program Office. You will manage and secure DoD-grade IT infrastructure, ensuring reliability and interoperability across Windows and Linux systems.

Responsibilities include RMF/STIG compliance, virtualization management (VMware/Hyper-V/KVM), patching, and disaster recovery planning, with collaborations across engineers and program stakeholders.