Systems Administrator

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

We are seeking a highly skilled IT Systems Administrator to join the Digital Engineering Environment team supporting the Space-Based Interceptor Program Management Office. This role is critical to managing, maintaining, and securing IT systems and infrastructure that underpin mission-critical operations for Department of Defense (DoD) requirements. As an IT Systems Administrator, you will ensure the reliability, scalability, performance, and cybersecurity of IT systems while supporting multi-domain operations and open systems architectures.

About the Program:

SBI serves as the first all-digital program within the U.S. Space Force, leveraging MTSI's expertise to establish a government-owned DEE that accelerates development, ensures interoperability, and secures workflows. This position supports next-generation capabilities across space vehicles, ground systems, and fire control systems elements, driving mission agility, iterative prototyping, and operational alignment.

Key Responsibilities:

• System Installation, Configuration, and Maintenance: Install, configure, and maintain operating systems, hardware, virtual environments, and network devices to meet program needs. Manage servers, workstations, storage, and peripheral systems as part of a high-performance IT infrastructure.
• System Monitoring and Troubleshooting: Monitor system performance and uptime using diagnostic tools, resolving issues promptly to minimize operational disruptions. Identify, troubleshoot, and resolve technical issues in collaboration with cross-functional teams and external vendors.
• Access and Security Management: Implement and enforce security measures, including access controls, endpoint protections, and intrusion detection/prevention systems. Perform security compliance tasks such as patch management, vulnerability assessments, and remediation activities in accordance with DoD standards (e.g., RMF, DISA STIGs).
• Infrastructure Support: Maintain virtualized environments using hypervisor technologies (e.g., VMware, Hyper-V) to support program requirements. Support systems integration efforts, ensuring interoperability across hardware and software architectures.
• Backup and Disaster Recovery: Develop and maintain backup and recovery procedures to minimize data loss and downtime. Test disaster recovery scenarios and support risk mitigation strategies.
• Network and Communication Support: Maintain network connectivity, including configuration and troubleshooting of switches, routers, and firewalls. Support secure communication architectures to ensure the availability of critical data services.
• Documentation and Compliance: Generate and maintain technical documentation, such as system diagrams, SOPs, and user guides, ensuring accuracy and compliance with DoD policies. Ensure systems adhere to DoD authorization standards and cybersecurity frameworks.
• Collaboration and Consultation: Coordinate with program stakeholders, engineers, and other IT professionals to align system capabilities with mission objectives. Provide technical expertise and recommendations for system improvements and upgrades.

Required Qualifications:

• Education and Experience: Bachelor's degree with years related experience
• Required Security Clearance: Must possess an active Secret clearance with the ability to obtain and maintain a TS/SCI. U.S. Citizenship required.
• Required Skills: Experience as a Systems Administrator supporting mission-critical IT environments, preferably within DoD or aerospace programs. Proficiency in administering Windows and Linux-based operating systems. Familiarity with network protocols (TCP/IP, DNS, routing) and network security practices. Experience with virtualization technologies such as VMware, Hyper-V, or KVM. Working knowledge of compliance frameworks such as RMF, DISA STIGs, and NIST 800-53. CompTIA Security+ required. #LI-AT