Linux Systems Administrator - TS/SCI with Polygraph
About The Position
Own your opportunity to support national defense. Your work will help keep critical operations secure and connected across the global enterprise directly, contributing to a mission that protects our nation every day. CIS is growing, and we invite both our experienced incumbents and new team members to be part of what’s next. Incumbents bring invaluable mission insight, while new talent adds fresh ideas and energy. Together, we’ll strengthen continuity and drive the next generation of innovation. As a Linux Systems Administrator supporting CIS, you will ensure the stability, security, and performance of enterprise Linux systems within the server and compute environment. You will support system availability, execute operational maintenance, enable secure implementations, and contribute to the sustainment of mission critical infrastructure services. Your work directly strengthens resilience, consistency, and operational continuity across complex, and multinetwork environments.
Requirements
- Active TS/SCI clearance with a favorable polygraph
- Hands-on experience administering, maintaining, and troubleshooting enterprise Linux/Unix systems across multiple environments
- Strong understanding of secure configuration, patching, user and service management, storage integrations, and system performance monitoring
- Ability to resolve complex system, network, and service issues across distributed environments
- Strong documentation, communication, and collaboration skills
- US citizenship required
- Meet DoD 8140 Information Assurance Workforce certification requirements (e.g. Security+ CE, etc.)
Nice To Haves
- Hardware Refresh
- IT Installations
- System Performance Monitoring
- Unix
Responsibilities
- Provide Tier 2 support for Linux/Unix servers, workstations, web services, and storage-connected systems: support Tier 3 functions through cross training with Engineering
- Perform installations, upgrades, and configuration of Linux operating systems and layered software packages in alignment with policies, procedures, and SLAs
- Support planning and execution of system upgrades, hardware refreshes, and software deployments across operational environments
- Conduct routine system maintenance including patching, updates, system health checks, logging, and backups
- Implement and maintain security measures to protect systems against vulnerabilities and unauthorized access
- Conduct security audits, compliance checks, and assessments to ensure adherence to organizational policies and regulatory requirements
- Develop, manage, and test backup and recovery procedures; maintain and support disaster recovery and business continuity plans
- Collaborate with engineering teams to provide system performance data, capacity trends, and operational insights that inform system design, build, and configuration activities
- Partner with stakeholders to understand requirements and recommend appropriate Linux-based solutions that optimize performance and resource utilization
- Troubleshoot and resolve complex hardware, software, and system issues; provide user and technical team support as needed
- Maintain detailed documentation on system configurations, procedures, operational changes, and infrastructure updates
- Support development or refinement of IT policies, procedures, and operational standards as requested
Benefits
- Comprehensive benefits and wellness packages
- 401K with company match
- Competitive pay
- Paid time off
- Variety of medical plan options
- Health Savings Accounts
- Dental plan options
- Vision plan
- 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match
- Full flex work weeks where possible
- Variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave
- Short and long-term disability benefits
- Life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance
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What This Job Offers
Job Type
Full-time
Career Level
Senior
