Secure Linux Systems Administrator (TS/SCI)

Vibrint; Maryland; On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

401(k) plan

Paid federal holidays

Paid time off

Medical, dental, vision insurance

Disability insurance

Professional development allowance

Job summary

Vibrint is seeking a System Administrator to sustain a secure Linux environment supporting mission users. You will manage physical and virtual servers, authentication, DNS, shared storage, and cloud or container-enabled infrastructure in a security-focused setting.

Responsibilities include patching, monitoring, and compliance with STE/ STIG requirements, using VMware, KVM, or Proxmox. A Level 2/3 role with TS/SCI clearance ensures critical operational support and secure system availability.

Qualifications

• Linux system administration experience at Level 2 or 3
• Experience applying DISA STIGs and compliance activities
• Experience administering virtualization tech (VMware, KVM, Proxmox)
• Knowledge of IP networking, firewalls, DNS, authentication, and shared storage
• Experience supporting physical and virtual infrastructure in ops environment
• DoD 8570/8140 IAT Level II certification
• Active TS/SCI with polygraph clearance
• Education/experience requirements for System Administrator 2 or 3 labor category

Responsibilities

• Administer, configure, patch, and troubleshoot Linux servers and VMs
• Monitor system health and respond to mission-critical alerts and Jira tickets
• Support authentication, DNS, shared drives, home directories, and connectivity
• Implement and maintain STE, STN, DISA STIG, and system security compliance
• Administer virtualized environments using VMware, KVM, Proxmox or similar
• Support IP networking, firewall rules, and connectivity with network engineers
• Manage storage systems like NetApp and Isilon
• Support containerized, cloud, or hyperconverged infrastructure
• Automate routine administration, compliance, and configuration tasks
• Maintain system documentation and communicate status to team

Skills

Linux systems

DISA STIGs

VMware

KVM

Proxmox

Networking

DNS

Storage

Automation

Scripting (Bash/Python)

Education

DoD 8570/8140 IAT Level II

Tools

VMware

Red Hat KVM

Proxmox

Job description

Vibrint is seeking a System Administrator to sustain a secure Linux environment supporting mission users. You will manage physical and virtual servers, authentication, DNS, shared storage, and cloud or container-enabled infrastructure in a security-focused setting.

Responsibilities include patching, monitoring, and compliance with STE/ STIG requirements, using VMware, KVM, or Proxmox. A Level 2/3 role with TS/SCI clearance ensures critical operational support and secure system availability.