Linux System Administrator - I3TS

This position requires an active DoD Clearance (Secret, Top Secret, Top Secret/SCI) or the ability to be obtain an (Interim Secret, Interim Top Secret)
Because an active or interim DoD clearance is required, U.S. Citizenship is required
Description
TEKsystems is seeking a Linux Administrator 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.
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.
Primary Responsibilities:
Provision servers and environments.
Manage user access.
Full lifecycle management of Linux servers, including installation, configuration and patching in production and test environments.
Automation knowledge scripting in Unix shell and Ansible playbooks.
Perform security patching, upgrades, and hardening to meet compliance standards and remediate critical vulnerabilities.
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 equivalent technology: Kubernetes, Open Shift, Containers, GitHub, 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, HT
Be able to work in a fast-paced environment and must be able to work independently.
Work on multiple projects, leading projects that fall within the Area of responsibility.
Communicate with internal team members across multiple areas and client team members.
Provide support on a M-F business hours schedule, also responsible for on-call, extended hour, and weekend support as required by mission or emergency situations.
Create, maintain, and implement detailed documentation and maintain standard operating procedures.
Certifications:
DoD 8570 IAT Level II or III certification (e.g., Security+ CE, CASP+, CISSP).
Red Hat Certification - Red Hat Certified System Administrator (RHCSA) (Preferred)
Skills
Linux, System administrator
Top Skills Details
Linux,System administrator
Additional Skills & Qualifications
Desired Skills:
Systems or network administration experience in Windows Server and/or Cisco environments.
Familiarity with automated call distribution systems.
Certification in a process-based platform including programs equal to ITIL, HDI, CoBIT, Lean Six, Six Sigma,etc.
Experience Level
Intermediate Level
Job Type & Location
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)
Workplace Type
This is a fully onsite position in Fort Belvoir,VA.
Application Deadline
This position is anticipated to close on Apr 30, 2026.
>About TEKsystems:
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.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.