Systems Administrator

TEKsystems is seeking a mission-focused Systems Administrator with strong Windows Server and AWS GovCloud (US) experience to support classified Department of Defense environments. This role is ideal for a cleared professional who thrives in secure, compliance-driven infrastructures and enjoys hands-on operational ownership.

• Administer and maintain AWS GovCloud (US) environments supporting classified workloads (IL4/IL5/IL6)
• Manage and support Windows Server–based systems in classified environments
• Ensure compliance with RMF, DISA STIGs, NIST 800‑53, and FedRAMP High
• Configure and manage AWS services including EC2, IAM, S3, RDS, VPC, CloudWatch, CloudTrail, and KMS
• Implement and enforce Zero Trust Architecture (ZTA) and strong IAM practices
• Perform system patching, backups, vulnerability remediation, and compliance scanning using ACAS, SCAP, and other approved tools
• Support ATO packages, POA&Ms, and continuous monitoring efforts
• Implement centralized logging, monitoring, and alerting; integrate with SIEM tools such as Splunk or ELK
• Provide Tier 3 support, conduct root cause analysis, and assist with incident response
• Create and maintain system documentation, diagrams, and SOPs

• Active DoD Secret Clearance (TS/SCI preferred)
• IAT Level II or III certification (Security CE, CASP , CISSP, or equivalent)
• 3 years of hands-on Systems Administration experience
• Strong experience with Windows Server administration
• Working knowledge of AWS GovCloud (US) services
• Experience operating in classified or highly regulated environments
• Familiarity with DoD cybersecurity frameworks (RMF, STIGs, NIST)
• Scripting or automation experience (PowerShell, Bash, Python, Terraform, or CloudFormation)
• Strong troubleshooting, documentation, and communication skills

• Experience supporting IL5 or IL6 classified workloads
• Familiarity with AWS Organizations and Service Control Policies (SCPs)
• Exposure to DevSecOps, CI/CD pipelines, or container platforms (ECS/EKS)
• Experience working with DISA assessments or CCRI events
• GIS / Geospatial / ESRI experience is a strong plus

• Onsite only
• Secure, classified setting
• Mission-critical infrastructure responsibilities

TEKsystems connects cleared professionals to impactful, long-term opportunities supporting national security missions. This role offers hands-on ownership, technical depth, and stability in a secure environment.

This is a Contract to Hire position based out of Scott Air Force Base, IL.

The pay range for this position is $34.00 - $42.00/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)

This is a fully onsite position in Scott Air Force Base,IL.

This position is anticipated to close on May 19, 2026.

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.

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.