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System Administrator Security Clearance

Job in Annapolis Junction, Howard County, Maryland, 20701, USA
Listing for: Open Systems Technologies Corporation
Full Time position
Listed on 2026-06-12
Job specializations:
  • IT/Tech
    IT Support, Systems Administrator, Systems Engineer, Cybersecurity
Job Description & How to Apply Below
Position: System Administrator with Security Clearance
Location: Annapolis Junction

System Administrator (All Levels) Network Engineers | Storage Engineers | Platform Engineers
Locations:
Maryland and Utah

Clearance Required:

Active TS/SCI with Polygraph
Citizenship: U.S. Citizenship Required

Position Overview 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. Responsibilities
* 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.

Note:

Regardless of specialization, all team members are expected to perform core Linux system administration functions and contribute to overall system sustainment efforts.

Required Qualifications
* Active TS/SCI with 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.
Desired Qualifications
* 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
Emerging Technologies 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

* What We're Looking For Successful candidates are naturally curious problem-solvers who enjoy working in complex environments and continuously expanding their technical expertise. Our environments are highly customized, and effective troubleshooting often requires creativity, critical thinking, and a willingness to investigate beyond standard solutions. We value professionals who:
* Demonstrate initiative and ownership.

* Thrive in collaborative environments.

* Enjoy learning new technologies.

* Have a strong commitment to mission success.

* Possess excellent troubleshooting and analytical skills.
Benefits OST has been providing mission-critical support to Government agencies since 1996 and offers a comprehensive benefits package including:
* 3 Weeks Paid Time Off

* 11 Federal Holidays

* Medical and Dental Coverage

* Short-Term Disability (STD)

* Long-Term Disability (LTD)

* Life Insurance

* Accidental Death & Dismemberment (AD&D) Coverage

* 401(k) with up to 4% Company Match
About OST Open Systems Technologies Corporation (OST) is an Equal Opportunity Employer dedicated to delivering innovative technology solutions and exceptional support to Government customers. We foster a culture of technical excellence, continuous learning, and professional growth
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