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# IT System Administrator (TS/SCI with Polygraph)

- **Company:** Red Alpha
- **Location:** Columbia, MD, United States
- **Experience:** Experienced
- **Salary:** $95,000 - $125,000
- **Contract:** Permanent contract
- **Skills:** Active Directory, Amazon Web Services, Amazon Elastic Compute Cloud, Amazon S3, Cloud Computing, Information Systems, Computer Networks, Linux, Domain Name System (DNS), Monitoring of Systems, Infrastructure as a Service (IaaS), Identity and Access Management, IP Addressing, Subnetting, Lightweight Directory Access Protocols (LDAP), Platform as a Service (PAAS), Ansible, Systems Integration, Git, Kubernetes, Information Technology, Terraform, Software Version Control, Docker
- **Published:** November 9, 2026
- **Apply:** https://www.careerbuilder.com/job-details/it-system-administrator-ts-sci-with-polygraph-columbia-md--0c3bb1e3-781d-45bf-92f2-837edcb796a9

## About the Role

Information Technology & Information Systems, Sensitive Compartmented Information (SCI), Systems Administration/Management, Top Secret Clearance, Information Systems/Technology IS/IT Administration, Information Technology & Information Systems, System Integration (SI), Systems Administration/Management, DNS (Domain Name System), Subnet, + Understanding of fundamental networking concepts (IP addressing, DNS, subnets)

 + Understanding and Experience with:
o LDAP/Active Directory structure and authentication
o SSL/TLS certificate usage and basic management

 + Awareness of security best practices (e.g., user permissions, patching)
 * Cloud Infrastructure:
 + Understanding of basic cloud computing concepts (IaaS, PaaS)
 + Familiarity with AWS components such as EC2, IAM, and S3
 * Containers & Orchestration:
 + Basic knowledge of Docker (images, containers, volumes)
 + Awareness of Kubernetes and how container orchestration works (actual experience not required but a plus)
 * Support & Sustainment:
 + Ability to perform system health checks and basic troubleshooting
 + Comfortable using system logs and monitoring tools
 + Familiar with documenting procedures and resolutions
 * Client Engagement & Communication:
 + Ability to interact with clients and internal teams professionally
 + Strong communication and problem-solving skills
 + Willingness to learn and adapt to changing client environments
 * Additional Requirements:
 + 5+ years of professional experience in IT including 3+ years experience in system administration
 + A Bachelor of Science Degree in Omputer Science or a related technical discipline from an accredited institution
 + Active TS/SCI with Polygraph
 + Eagerness to learn and grow in a fast-paced technical environment
 + Willingness to work off-hours occasionally for updates or incident resolution
 + Exposure to Git or version control systems
 + Experience using command-line interfaces (CLI)
 + Interest in automation or infrastructure-as-code (e.g., Ansible, Terraform)

Bonus Skills:

 * Experience with Kubernetes and container orchestration
 * Entry-level certifications preferred:
 * CompTIA A+, Network+, or Linux+
 * AWS Certified Cloud Practitioner (a plus)
 * Docker Certified Associate or CKA (a plus)