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Linux Administrator with Security Clearance

Open Systems Technologies CorporationChantilly, VA🇺🇸United StatesPosted Sep 28, 2026

Quick Overview

Seniority
Mid Senior
Employment type
Employee
Work mode
Hybrid
Location
Chantilly, VA, United States
Posted
23 hours ago
AgileConfluenceJira

Job Description

Linux Administrator Open Systems Technologies Corporation - Chantilly, VA, United States Location: Chantilly VA, Gaithersburg MD, Alexandria VA, St Louis MO Clearance: TS/SCI Required Certification: DOD 8570 (Security+) Job Description: The OST team has an opening for an experienced System Engineer with Linux system administration experience to support cloud and on-premise systems with a mission operations team. The team is involved in operation and sustainment of a mission-critical geospatial solution supporting DoW end users. A successful candidate will have experience with installation, configuration, administration, support and maintenance of mission critical cloud and on-premise systems.

Responsibilities: Primary responsibilities will involve taking a leadership role in system changes and improvements; working directly with government and contractor POCs to troubleshoot issues; proactively recommend configuration changes to help improve system performance; regularly work with government and contractor POCs to keep systems security compliant; and author and update operational and security documentation, including troubleshooting guides and SOPs. Other tasks as assigned.

Core Qualifications

  • Requires BS degree and 8+ years of prior relevant experience or Masters with 6+ years of prior relevant experience; OR additional years of experience in lieu of degree
  • Must currently possess an active TS/SCI Clearance with ability to obtain & maintain a Polygraph post hire
  • Must meet DOD 8570 Certification (Security+ or equivalent or higher)
  • Proactive self-starter demonstrating a positive, willing attitude and excellent oral and written communication skills
  • Demonstrated ability to adapt to new technologies and learn quickly
  • Organizational Skills: Can plan and prioritize work. Follows tasks to their logical conclusion and makes sure that everything has been done to the right standard. Good attention to detail.
  • Communications: Ability to communicate clearly and efficiently to team members and clients, verbally and in writing. Able to present ideas in a variety of ways depending upon audience and context.
  • Linux administration experience provisioning end users
  • Experience managing and configuring RHEL environments
  • Experience building, optimizing, and maintaining multi-node environments that run parallel workloads
  • Experience with Linux clusters, specifically Slurm and MPI, to support High-Performance Computing (HPC) systems
  • Strong understanding of NGA Networking
  • Proficient reviewing STIG/IAVA scans and remediating vulnerabilities
  • Experience performing Virtual Machine backups/snapshots
  • Experience working with Security to support ISCP exercises
  • Experience scripting for administration, configuration, troubleshooting, and automation
  • Knowledge of Systems, Architectural, SW Development and SW Sustainment Practices Preferred Qualifications:
  • Red Hat Certification(s)
  • Linux Certification(s)
  • Agile Certification(s)
  • Team Collaboration tools and administration (Jira, Confluence) Job # 1011

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