Linux Systems Administrator

Seeking a Linux Administrator to support the DTRA I3TS Infrastructure Services team in maintaining and optimizing the Linux production environment. This role is responsible for sustaining Linux servers as well as the conceptualization, design, development, and implementation of new Linux capabilities. The administrator will work as part of the DTRA Systems Administration team, following ITIL best practices, while also operating independently on assigned tasks. This position supports the full service lifecycle-from design and development through production-building and deploying Linux-based systems in a virtualized environment. The ideal candidate is familiar with system automation technologies, basic database administration and tuning, and demonstrates strong problem-solving skills in a complex environment. Effective communication with both technical team members and customers is essential.

Primary Responsibilities

• Provision servers and environments
• Manage user access
• Perform full lifecycle management of Linux servers, including installation, configuration, and patching in production and test environments
• Develop and maintain automation scripts using Unix shell scripting and Ansible playbooks
• Perform security patching, upgrades, and system hardening to meet compliance standards and remediate vulnerabilities
• Monitor system performance and respond to alerts
• Establish and maintain NTP services in production environments
• Maintain satellite servers for software releases and patch distribution
• Ensure compliance with DoD STIGs and security best practices
• Support and administer web servers and certificates
• Work independently in a fast-paced environment while managing multiple projects
• Lead projects within assigned areas of responsibility
• Communicate across internal technical teams and with client stakeholders
• Provide support during standard M-F business hours, with on-call, extended-hour, and weekend support as required by mission or emergency needs
• Create, maintain, and update technical documentation and standard operating procedures

Technologies & Tools

• Linux (enterprise environments)
• Automation: Ansible, Ansible Tower, shell scripting
• Container technologies: Kubernetes, OpenShift, Containers
• Version control: GitHub
• Open source tools: Apache Hadoop, Zookeeper, Puppet
• Application servers: JBoss, Tomcat, Jetty, NGINX

Certifications

• DoD 8570 IAT Level II or III (e.g., Security+ CE, CASP+, CISSP)
• Red Hat Certified System Administrator (RHCSA) - preferred

• Linux system administration, * Systems or network administration experience in Windows Server and/or Cisco environments
• Familiarity with automated call distribution systems
• Process-based certifications or frameworks such as ITIL, HDI, COBIT, Lean Six Sigma, or Six Sigma

This is a Contract position based out of Fort Belvoir, VA. Pay and Benefits The pay range for this position is $60.00 - $65.00/hr. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: Medical, dental & vision Critical Illness, Accident, and Hospital 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available Life Insurance (Voluntary Life & AD&D for the employee and dependents) Short and long-term disability Health Spending Account (HSA) Transportation benefits Employee Assistance Program Time Off/Leave (PTO, Vacation or Sick Leave)

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company. The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. About TEKsystems and TEKsystems Global Services We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.