System Administrator

Gilder Search Group; Annapolis (MD); On-site; USD 80,000 - 110,000; Full time

Benefits offered by this job

3 Weeks Paid Time Off

Medical and Dental Coverage

401(k) with up to 4% Company Match

Job summary

Gilder Search Group is seeking System Administrators at all levels to support mission-critical operations in Maryland. The role involves Linux administration, troubleshooting, and system maintenance in high-performance environments.

Candidates must have an active TS/SCI with Polygraph clearance. Responsibilities include supporting HPC environments, developing scripts for task automation, and collaborating with teams to ensure system reliability.

This role offers the opportunity to work in dynamic environments with a comprehensive benefits package including paid time off and medical coverage.

Qualifications

• Experience administering Linux operating systems.
• Experience with Linux installation and configuration.
• Strong analytical and troubleshooting skills.

Responsibilities

• Monitor and troubleshoot systems and infrastructure.
• Install and administer Linux operating systems.
• Develop and maintain Bash scripts.

Skills

Linux administration

Bash scripting

Troubleshooting

Networking

Analytical skills

Education

Active TS/SCI with Polygraph security clearance

U.S. Citizenship

Tools

Red Hat Enterprise Linux (RHEL)

CentOS

Rocky Linux

SUSE Linux Enterprise Server (SLES)

Ubuntu

Jira

Confluence

Grafana

Prometheus

Nagios

Ansible

Job description

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:
• InfiniBand
• 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
• lnet_selftest

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 while supporting some of the nation's most critical missions.