Sr Linux Systems Administrator

  • Twenty80 LLC
  • Annapolis, Maryland
  • 08/22/2026
Information Technology Telecommunications Cisco

Job Description


Security Clearance Required: Active TS/SCI with Full Scope Polygraph (FSP)


Do you enjoy solving complex infrastructure and software challenges? If you're passionate about managing bare-metal environments, configuring high-performance infrastructure, and automating large-scale deployments, this opportunity is for you.


We are seeking a Senior Linux Systems Administrator to support a high-priority, mission-critical cybersecurity modernization program. In this role, you'll work within a large software development environment, ensuring enterprise systems remain secure, reliable, and highly available while implementing automated infrastructure to support next-generation malware analysis, cyber orchestration, and data enrichment capabilities.


Required Skills

  • Security Clearance: Active TS/SCI with Full Scope Polygraph (FSP).
  • Linux Administration: Expert-level experience with Linux system administration, architecture, maintenance, and performance optimization.
  • Infrastructure Automation: Strong proficiency using Ansible for configuration management and automated provisioning.
  • Troubleshooting: Extensive experience diagnosing and resolving complex infrastructure, system, and environment bottlenecks.
  • Virtualization & Container Orchestration: Hands-on experience deploying and managing VMware environments and Kubernetes clusters.

Preferred Skills

  • Enterprise Storage: Experience administering enterprise storage solutions, with preference for Pure Storage platforms.
  • Database Administration: Experience administering and supporting MongoDB.
  • Networking: Experience designing, deploying, upgrading, patching, and troubleshooting Cisco-based network environments.
  • Network Performance: Strong ability to diagnose connectivity issues, resolve critical network outages, and optimize network performance by eliminating data bottlenecks.