Mission-Critical Systems Admin (TS/SCI) – Linux & Windows

Vibrint; Maryland; On-site; USD 120,000 - 190,000; Full time

Benefits offered by this job

401(k) with company match

11 federal holidays

Paid time off (160 hours)

Health, dental, vision insurance

Life and short/long-term disability

Employee assistance program

Professional development allowance

Job summary

Vibrint seeks a Systems Administrator to sustain Linux and Windows infrastructure across DevOps and live mission systems at multiple classifications in Maryland. The role requires active TS/SCI with polygraph and US citizenship, with responsibilities spanning server maintenance, storage management, and virtualization support.

The candidate will collaborate with a large government and contractor team to troubleshoot, secure, and optimize backend services, networks, and authentication flows,

Qualifications

• Extensive Linux administration experience supporting operational environments.
• Ability to support an infrastructure containing Linux and Windows systems.
• Solid experience implementing DISA STIG compliance on Linux.
• Experience managing storage technologies (CFS/DFS, NetApp).
• Experience administering virtualization (Proxmox, Red Hat KVM, VMware).
• Experience with IP networking and firewalls.
• Some experience with containerized or cloud environments.
• Strong communication across technical teams and stakeholders.
• Current IAT Level II certification.
• Active TS/SCI with polygraph clearance.
• Education + experience combinations accepted (HS+20y or Bach+15y).

Responsibilities

• Administer and sustain Linux/Windows servers and VMs supporting DevOps and live ops.
• Maintain backend services across multiple classification levels, including auth, DNS, and home dirs.
• Troubleshoot connectivity and system issues across infrastructure components.
• Review monitoring and priorities from mission updates and team communications.
• Resolve Jira tickets with cross-functional teams.
• Apply Linux security configs and support STIG compliance.
• Manage storage resources (CFS/DFS, NetApp).
• Configure virtualization platforms (Proxmox, KVM, VMware).
• Troubleshoot IP networking and firewall issues affecting availability.
• Support containerized and cloud environments.
• Coordinate work across contracts and government stakeholders.

Skills

Linux administration

Windows administration

Virtualization

Networking

Security/STIG compliance

Containerized/cloud

Automation tooling

Scripting (bash/python)

Education

Bachelor's degree +15 years

HS diploma +20 years

Tools

Proxmox

Red Hat KVM

VMware

NetApp

CFS/DFS

Ansible

Salt

Rubrik

NetBackup

Job description

Vibrint seeks a Systems Administrator to sustain Linux and Windows infrastructure across DevOps and live mission systems at multiple classifications in Maryland. The role requires active TS/SCI with polygraph and US citizenship, with responsibilities spanning server maintenance, storage management, and virtualization support.

The candidate will collaborate with a large government and contractor team to troubleshoot, secure, and optimize backend services, networks, and authentication flows,