Senior System Administrator - Linux

Intelligent Waves LLC

$90K — $120K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Active TS/SCI security clearance required
  • BS in IT with 6-8 years or MS degree with 4-6 years of experience in Linux server operations
  • Hands-on experience with Red Hat Enterprise Linux environments
  • Experience supporting systems using Red Hat Satellite
  • Understanding of virtualization infrastructure and STIG compliance
  • Basic log file analysis skills
  • Strong troubleshooting and problem-solving abilities

Responsibilities

  • Provision servers and manage user access in Linux environments
  • Manage full lifecycle of Linux servers including installation and configuration
  • Automate tasks using Unix shell scripting and Ansible playbooks
  • Perform security patching and hardening to ensure compliance
  • Monitor system performance and respond to alerts promptly
  • Establish and maintain network time protocol services
  • Manage software releases and patches for satellite servers

Benefits

  • Opportunities for professional development
  • Work within a supportive team environment
  • Engagement with cutting-edge technologies
  • Contribution to critical defense operations
  • Clear focus on ITIL best practices in service management
Full Job Description
Overview

Intelligent Waves is seeking a Linux System Administrator (Senior) to support the organization's Infrastructure Services team to maintain and optimize the Linux production environment. The candidate will be responsible for sustaining Linux servers as well as the conceptualization, design, development and implementation of new Linux capabilities. The candidate is expected work well as a part of the Systems Administration team using ITIL best practices as well as work independently on assigned tasks. Candidate is expected to support the entire service lifecycle from design through development to production, building and deploying Linux based systems in a virtual environment.

 

Candidate should be familiar with system automation technologies, basic database administration and tuning. Candidates must demonstrate a high degree of problem-solving ability in a complex environment and be able to communicate effectively, both to the customer and to team members.

 

🌎 Location: Fort Belvoir, Va✈️ Travel: None

🛡️ Clearance Requirement: TS/SCI

Responsibilities Linux Server Administration
  • Provision servers and environments and manage user access.
  • Full lifecycle management of Linux servers, including installation, configuration, and patching in production and test environments.
Automation
  • Automation knowledge scripting in Unix shell and Ansible playbooks.
Security & Compliance
  • Perform security patching, upgrades, and hardening to meet compliance standards and remediate critical vulnerabilities.
  • Ensure compliance with security standards and practices aligned with DoD STIGs.
System Monitoring
  • Monitor system performance and respond to alerts.
Network Services
  • Establish and maintain NTP services in the production environment.
Patch & Release Management
  • Maintain satellite servers for the agency, software releases, and patches.
Emerging Technologies
    • Experience with the following emerging technologies or equivalent technology: Kubernetes, OpenShift, Containers, GitHub, and Ansible Tower.
Qualifications

Required Qualifications
  • Active TS/SCI security clearance is required.
  • BS with 6-8 years, or MS degree with 4-6 years of experience in IT operations working with Linux servers and Virtualization.
  • Hands-on experience administering Red Hat Enterprise Linux environments.
  • Direct experience supporting systems with Red Hat Satellite.
  • Understanding of virtualized infrastructure, server backup and restoral procedures, application of STIGs and cyber hardening approaches.
  • Basic experience with log file analysis.
  • Strong troubleshooting and problem-solving skills.
Desired Qualifications
  • Red Hat certifications (RHCSA or RHCE).
  • Experience implementing and maintaining DISA STIG compliance using Red Hat Satellite and Ansible.
  • Experience integrating Linux systems with Active Directory or LDAP.
  • Familiarity with virtualization platforms (VMware, KVM).
  • Scripting experience (Bash or Python) to support automation initiatives.
  • Experience supporting classified networks or cross-domain environments.

 

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