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Senior Linux Administrator

Job in Fort Belvoir, Fairfax County, Virginia, 22060, USA
Listing for: ValidaTek, Inc.
Full Time position
Listed on 2026-01-27
Job specializations:
  • IT/Tech
    Systems Engineer, Systems Administrator, IT Support, Cybersecurity
Salary/Wage Range or Industry Benchmark: 90000 USD Yearly USD 90000.00 YEAR
Job Description & How to Apply Below

Company Overview

At Valida Tek, we modernize and optimize IT services to solve some of the most critical challenges facing federal civilian and defense agencies. From customers to partners to top-talent employees, Valida Tek puts people first, empowering them to exceed expectations and transform government organizations. Our success starts and ends with our people, so we built a company where great people can do great things, with the resources and autonomy to make decisions that transform organizations.

We operate as one team of diverse people, united by a passion for continuous growth and optimization. Our commitment to quality and performance optimization is the reason why our IT Service Projects and New Development Projects have been appraised at CMMI Maturity Level 5, positioning us as one of a handful of elite companies to receive the highest form of third-party validation.

Summary

Valida Tek is seeking a Senior Linux Administrator in Fort Belvoir, VA to support the DTRA I3TS 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 DTRA 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.

Responsibilities
  • Candidate should be familiar with system automation technologies, basic database administration and tuning. Candidate 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.
  • Provision servers and environments
  • Manage user access
  • Maintain servers in virtual environment
  • Automation knowledge scripting in Unix shell and Ansible playbooks
  • Maintain and improve configuration management templates
  • Monitor system performance and respond to alerts
  • Establish and maintain NTP services in the production environment
  • Maintain satellite servers for the agency, software releases and patches
  • Experience with the following emerging technologies or an equivalent technology:
    Kubernetes, Open Shift, Containers, Git Hub, Ansible Tower
  • Ensure compliance with security standards and practices aligned with DoD STIGs.
  • Experience with web servers and use of certificates
  • Open Source:
    Apache Hadoop, Zookeeper, Puppet
  • App Servers: JBoss, Tomcat, Jetty, NGINX, HTTP
Qualifications
  • Bachelors with 8+ years, or MS degree with 4-6 years of experience in IT operations working with Linux servers and Virtualization
  • Must hold a Top Secret/SCI Clearance.
  • 2-3+ years of Windows Server experience.
  • 2-3 years of experience with web server management and implementation; troubleshooting of websites, applications, and security implementations.
  • Understanding of virtualized infrastructure, server backup and restoral procedures, application of STIGs and cyber hardening approaches.
  • Basic experience with log file analysis
  • Basic experience with Red Hat Satellite tool for deploying, configuring, and maintaining Red Hat Enterprise Linux (RHEL) across physical, virtual, and cloud environments.
  • Basic understanding of Red Hat, provisioning, and patching, often using Satellite Capsules for distributed content delivery and local services like DHCP/DNS in large or remote setups. It centralizes RHEL management, improving security and efficiency by handling subscription management, content views, and system auditing from a single console.
  • Basic understanding of Red Hat command line tools:
    System Management, Manage RPM packages, and Package Management.
  • Certifications:
    • IAT II (8570) Certification
    • Red Hat Certification - Red Hat Certified System Administrator (RHCSA) (Preferred)
Posted Min Pay Rate

USD $90,000.00/Yr.

Posted Max Pay Rate

USD $/Yr.

Salary Disclosure

Actual salary will be based on a variety of factors including but not limited to experience, geographic location, contract affordability, internal equity, education, and certifications. The upper end of the salary range may be reserved for individuals who have demonstrated tenure with the company, seniority, and proven excellent performance. This includes factors such as education, certifications, and extensive/unique experience beyond what is required.

EEO

Statement

Valida Tek is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, protected veteran status, or disability status. Applicants who are selected for employment will be required to verify authorization to work in the United States. Offers of employment will be contingent upon passing a post-offer background check.

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Position Requirements
10+ Years work experience
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