Sr. Systems Administrator

Arlington, VA, 1099, W2

Our Client is supporting a U.S. Government customer to obtain development, operations and maintenance (O&M), logistics, security and deployment support services necessary to operate and sustain the customer’s Lab environments. Activities must be carried out at the highest levels of service and availability. They are seeking a Linux administrator with some cloud experience to support this effort.


  • System Administration: Oversee the day-to-day operations of the customer’s lab environments including installation, configuration, and maintenance of Linux operating systems (e.g., CentOS, Ubuntu, Red Hat)
  • Performance Monitoring and Optimization: Monitor system performance, troubleshoot issues, and optimize system resources to ensure maximum uptime and efficiency. Implement proactive measures to identify and address potential bottlenecks or performance degradation.
  • Security Management: Implement and maintain security measures to protect systems from vulnerabilities, unauthorized access, and malware threats
  • Backup and Disaster Recovery: Develop and maintain backup and disaster recovery plans for Linux systems
  • Patch Management: Manage the patching process for Linux servers, including scheduling, testing, and deploying software updates and security patches in a timely manner. Ensure compliance with patch management policies and procedures.
  • Automation and Scripting: Develop automation scripts and tools using shell scripting (e.g., Bash), Python, or other scripting languages to streamline system administration tasks, automate repetitive processes, and improve operational efficiency
  • Collaboration: Work with cross-functional teams including key stakeholders to support project initiatives and resolve technical issues
  • Documentation: Document system configurations, procedures, and troubleshooting steps for knowledge sharing and training purposes
  • Technical Support: Provide technical support and troubleshooting assistance to internal users and teams regarding Linux-related issues. Diagnose problems and implement solutions in a timely manner to minimize downtime and disruptions.


  • Public Trust Clearance with ability to obtain TS/SCI
  • Must be able to obtain DHS Suitability
  • Bachelor’s degree in Information Security, Cyber Engineering or a related discipline
  • Desired Certifications: Information Security and IT certifications in Splunk, AWS, Cisco, Red Hat, etc.
  • 6+ years of directly relevant experience in Linux System Administrator
  • Proficiency in managing and maintaining Linux servers (e.g., Red Hat, CentOS, Ubuntu)
  • Strong understanding of Linux file systems, permissions, and security
  • Hands-on experience with AWS services such as EC2, S3, RDS, VPC, IAM, CloudFormation, and Lambda
  • Knowledge of networking concepts and protocols (TCP/IP, DNS, VPN, etc.)
  • Experience with network troubleshooting and security (firewalls, security groups, NACLs)

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