Senior Linux Systems Administrator

The One 23 Group; Arlington (VA); On-site; USD 120,000 - 180,000; Full time

Job summary

Integrated Computer Solutions (ICS) seeks an experienced system administrator to design, implement, and manage RHEL environments with automation and virtualization expertise. You will lead technicians, coordinate with contractors, and ensure cybersecurity compliance for DoD missions.

The role requires handling changes, STIG/IAVM, and complex troubleshooting while aligning with customer needs and development teams.

Qualifications

• Experience designing and implementing automation for RHEL environments.
• Knowledge of VMware virtualization.
• Experience with NetApp backup solutions.
• Ability to lead a team of technicians and coordinate with contractors.

Responsibilities

• Oversee key system administration tasks with a team of technicians, managing various versions of RHEL OS, supporting tools, middleware, and user privileges.
• Participate in change and configuration control processes and implement STIG to support IAVM.
• Provide leadership on major tasks and technology projects to maintain systems and applications; communicate with customers and contract leaders on complex technical issues, ensuring cybersecurity standards are met for JSSC and its customers.
• Analyze application diagnostics and system performance, resolving challenges with RHEL utilities and software upgrades to improve reliability.
• Troubleshoot incidents related to RHEL systems and document responses, developing strategies and standards for RHEL resources.
• Create and oversee system upgrades, identifying needs and planning effectively to meet customer requirements.
• Develop, install, and monitor RHEL systems, migrating subsystems and working with customers and development teams on improvements.
• Conduct performance monitoring and support cybersecurity efforts to maintain system security.
• Evaluate and recommend software, guidelines, and project plans to junior staff, providing solutions for prompt issue resolution, patch management, and administrative support.

Skills

RHEL

Automation scripting

VMware

NetApp

Education

High School Diploma

Tools

NetApp

VMware

Job description

The expert will have strong knowledge of Red Hat Enterprise Linux (RHEL) systems and will be able to design and implement automation scripts. They should also understand virtualization systems (like VMWare) and enterprise backup/restoration strategies (preferably using NetApp). This role involves providing high-level technical support and guidance for RHEL Operating Environments, related systems, and middleware, focusing on system administration for JSSC operations.

RESPONSIBILITIES:

• Oversee key system administration tasks with a team of technicians, managing various versions of RHEL operating systems, supporting tools, middleware, and user privileges.
• Participe in change and configuration control processes and implement Security Technical Implementation Guides (STIG) to support Information Assurance Vulnerability Management (IAVM).
• Provide leadership on major tasks and technology projects to maintain systems and applications. Communicate with customers and contract leaders about complex technical issues, ensuring cybersecurity standards are met for JSSC and its customers.
• Analyze application diagnostics and system performance, resolving challenges with RHEL utilities and software upgrades to improve reliability.
• Troubleshoot incidents related to RHEL systems and document responses, developing strategies and standards for RHEL resources.
• Create and oversee system upgrades, identifying needs and planning effectively to meet customer requirements.
• Develop, install, and monitor RHEL systems, migrating application subsystems and working with customers and development teams on improvements.
• Conduct performance monitoring and support cybersecurity efforts to maintain system security.
• Evaluate and recommend software, guidelines, and project plans to junior staff, providing solutions for prompt issue resolution, patch management, and administrative support.

ADDITIONAL INFORMATION

• Position located on-site at the Pentagon
• Video interviews will be conducted

Requirements

• Minimum active Top-Secret Clearance with the ability to be Sensitive Compartmented Information (SCI) indoctrinated; AND,
• DoD 8140/8570 Information Assurance Technical Level II (IAT-II) CompTIA Security+ CE Certification; AND,
• High School Diploma; AND,
• 10 years of information technology experience.

PREFERRED

• PERL Scripting Experience.

ABOUT US

At Integrated Computer Solutions (ICS), our mission is to advance national security and accelerate mission outcomes. We support the Department of War, Intelligence Community, and Federal Civilian agencies by bringing Data Analytics, Cyber Operations, and Digital Modernization together to solve complex operational challenges.

Our capabilities help customers turn data into actionable intelligence, protect critical systems, and modernize the environments their missions depend on. With a global footprint and deep experience in government operations, we connect technical expertise with mission understanding to deliver solutions that perform where they matter most.

Our people are the foundation of that work. One Team, One Direction reflects how we operate: aligned around our customers' missions, accountable for results, and guided by integrity. We invest in our people, apply emerging technologies with purpose, and continuously improve how we deliver so our customers can move forward with confidence.