Systems Administrator 3 with Security Clearance

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. Pay & Benefit Highlights Compensation * Competitive fixed salary or hourly pay (based on experience, skills, location, and internal equity). * Employee referral bonuses up to $10,000 per hired referral. * Additional bonus opportunities for exceptional performance and contributions to business development and company growth (role-dependent). Health * 100% company-paid medical premiums for employees and eligible dependents. * Choose from multiple plan options with CareFirst, Kaiser, and UnitedHealthcare, including PPO, POS, HMO, and HSA-compatible plans. * 100% company-paid dental premiums for employees and eligible dependents. * 100% company-paid vision premiums for employees and eligible dependents. Income Protection * 100% company-paid premiums for short-term disability. * 100% company-paid premiums for long-term disability. * 100% company-paid premiums for accidental death & dismemberment (AD&D). * 100% company-paid premiums for life insurance up to $200,000. Retirement * 401(k) with immediate vesting: 4% company match plus a 4% non-elective company contribution (8% total). * 401(k) pre-tax and Roth options. Leave * Up to 20 days of flexible paid time off (PTO). * 11 paid floating holidays. Work-Life Balance * Flexible work schedules, including flex time and compressed work periods (contract and project-dependent).