Systems Administrator 3

Position Summary Support the OSINT Integration Center under the DOMEX Technology Platform contract as a Systems Administrator 3 focused on Linux and Windows systems administration, performance optimization, and user support. Essential Duties and Responsibilities Perform Linux and Windows builds, installations, configurations, administration, and troubleshooting. Implement and enforce DISA STIG compliance across systems and networks. Develop and maintain server builds for virtual and physical environments. Manage and deploy Kubernetes, Rancher, and Helm. Develop scripts for patching, configuration, and automation using Python, Bash, or PowerShell. Use Salt and Ansible for infrastructure automation. Administer AWS cloud environments including provisioning, monitoring, and optimization. Provide service desk coverage between 6 AM and 6 PM, Monday through Friday, on a rotational basis. Required Qualifications Active TS/SCI with ability to obtain a CI Polygraph. Bachelor's degree with a minimum of six years of experience in the category field. Three additional years of experience may be substituted for the bachelor's degree. Expertise in Linux systems administration, including RHEL/CentOS and Ubuntu. Experience with patching and virtual server builds. Familiarity with Agile project management and security requirements derivation. Strong scripting skills in Python and Bash. Excellent verbal and written communication skills. Ability to work independently and collaboratively in a team environment. Experience working in air-gapped environments. Ability to obtain Privileged User Account certification by the Government. Preferred Qualifications Experience with Kubernetes, Rancher, and infrastructure-as-code tools such as AWS CloudFormation. Familiarity with ArgoCD, Jenkins, and GitLab. Knowledge of the ELK stack and beats. Experience with Active Directory in a Linux environment. Background maintaining AI/ML environments and large data storage solutions. Required Education and Experience Equivalency Education | Years of Experience High School Diploma/GED | 9 Associates Degree | 9 Bachelors' Degree | 6 Masters' Degree | 6 PhD | 6 Required Certifications None specified. Required Security Clearance Active TS/SCI with ability to obtain a CI Polygraph. #J-18808-Ljbffr