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Modern Technology Solutions, Inc. (MTSI) · 1 day ago

IT Systems Administrator

Huntsville, AL

Full-time

Onsite

Senior Level, Lead/Staff

15+ years exp

Modern Technology Solutions, Inc. (MTSI) is seeking a highly skilled IT Systems Administrator to join their team. This role is critical for managing, maintaining, and securing IT systems and infrastructure that support mission-critical operations for Department of Defense requirements.

Information Technology

Growth Opportunities

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

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

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

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)

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

Develop and maintain backup and recovery procedures to minimize data loss and downtime

Test disaster recovery scenarios and support risk mitigation strategies

Maintain network connectivity, including configuration and troubleshooting of switches, routers, and firewalls

Support secure communication architectures to ensure the availability of critical data services

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

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

Qualification

Systems AdministrationWindowsLinux OSVirtualization TechnologiesNetwork ProtocolsCompliance Frameworks

Required

Bachelor's degree with 15 years' related experience; Master's degree preferred

Must have an Active Top-Secret Clearance with SCI Eligibility

5 years' prior experience for access to Special Access Program Information (SAP), or Controlled Access Program (CAP); must have 1 year in the last 5 years

15+ years of 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