System Administrator; MD​/UT; Mid​/Sr-TS​/SCI FSP-Onsite

Industry: Information Technology
- Other

Job Category: Information Technology
- Other IT

Network Engineers | Storage Engineers | Platform Engineers

Locations: Maryland and Utah

Clearance: Active TS/SCI with Full Scope Polygraph

Must have Full Scope Poly from NSA

Citizenship: U.S. Citizenship Required

Open Systems Technologies Corporation (OST) is seeking System Administrators at all experience levels to support mission-critical operations in Maryland and Utah. These funded positions support high-performance computing (HPC) environments and mission operations sustainment activities, including monitoring, troubleshooting, maintenance, and optimization of complex Linux-based infrastructures.

We are seeking candidates with strong Linux administration skills and a passion for solving complex technical challenges. Whether your expertise is in platform engineering, networking, or storage systems, you will play a critical role in ensuring the reliability, performance, and availability of mission-essential environments.

• Monitor, maintain, and troubleshoot mission operations systems and infrastructure.
• Install, configure, and administer Linux operating systems and applications.
• Configure and manage file systems, networking services, and system resources.
• Perform operating system and application troubleshooting in complex environments.
• Develop and maintain Bash scripts to automate administrative tasks.
• Compile, install, configure, and support software applications.
• Support infrastructure automation and configuration management initiatives.
• Collaborate with engineering and operations teams to resolve system issues and improve performance.
• Document configurations, procedures, and troubleshooting processes.
• Participate in system upgrades, maintenance activities, and operational support.

• Active TS/SCI with Full Scope Polygraph security clearance.
• U.S. Citizenship.
• Experience administering Linux operating systems, including:
  • Red Hat Enterprise Linux (RHEL)
  • CentOS
  • Rocky Linux
  • SUSE Linux Enterprise Server (SLES)
  • Ubuntu
• Experience with:
  • Linux installation and configuration
  • File system administration
  • TCP/IP networking
  • Operating system troubleshooting
  • Application troubleshooting
  • Bash scripting
  • Software compilation and installation
• Strong analytical and troubleshooting skills.
• Ability to work independently and collaboratively in dynamic mission environments.

• Understanding of High-Performance Computing (HPC) architectures.
• Experience supporting large-scale enterprise or mission-critical environments.
• Knowledge of high-speed networking technologies including:
  • Infini Band
  • Slingshot
• Experience with:
  • Jira
  • Confluence
  • Grafana
  • Prometheus
  • Nagios
  • Slurm
  • Git
  • Salt
  • Ansible
• Storage & Network Engineering Preferred Experience. Candidates with storage, networking, or infrastructure engineering backgrounds are highly encouraged to apply.
• Storage Technologies:
  • Lustre file system configuration, administration, and troubleshooting.
  • Experience with DDN Exascaler file system appliances.
  • Storage fabric design, implementation, and support.
  • Storage performance tuning and optimization.
• Networking Technologies:
  • TCP/IP networking and storage networking concepts.
  • Experience with enterprise routing and switching platforms, including:
    • Cisco
    • Juniper
    • Arista
• Experience or interest in learning:
  • E1000 Storage Systems
  • Elastic Storage Nodes (ESNs)
  • DAOS (Distributed Asynchronous Object Storage)
  • Weka Data Platform
  • Performance and Benchmarking Tools
• Experience with one or more of the following:
  • IOR
  • iperf
  • FIO