Linux Administrator with Security Clearance

SMS is seeking a Linux Administrator to support the DTRA I3TS Infrastructure Services team to maintain and optimize the Linux production environment. The candidate will be responsible for sustaining Linux servers as well as the conceptualization, design, development and implementation of new Linux capabilities. The candidate is expected work well as a part of the DTRA Systems Administration team using ITIL best practices as well as work independently on assigned tasks. Candidate is expected to support the entire service lifecycle from design through development to production, building and deploying Linux based systems in a virtual environment. Candidate should be familiar with system automation technologies, basic database administration and tuning. Candidate must demonstrate a high degree of problem-solving ability in a complex environment and be able to communicate effectively, both to the customer and to team members. As a dynamic systems integrator, SMS offers proven solutions in engineering, operations, cybersecurity, and digital transformation. With expertise in modernizing and optimizing legacy infrastructure and systems, ensuring operational efficiency, and designing, implementing, and managing secure environments, SMS supports business and mission goals with proficiency, quality, and integrity. SMS has been serving the advanced information technology needs of the federal government since 1976, delivering talented teams and innovative, cost-effective solutions and services to support our customers' missions for more than 45 years. SMS is headquartered in McLean, Virginia, with offices and on-site operations at customer locations throughout the United States. For additional information on SMS, visit www.sms.com . Submit your resume today! Responsibilities

• Provision servers and environments
• Manage user access
• Maintain servers in a virtual environment
• Automation knowledge scripting in Unix shell and Ansible playbooks
• Maintain and improve configuration management templates
• Monitor system performance and respond to alerts
• Establish and maintain NTP services in the production environment
• Maintain satellite servers for the agency, software releases and patches Qualifications
• STEM Bachelors degree with 8 years, or STEM Masters degree with 6 years of experience in IT operations working with Linux servers and Virtualization. Additional, specific years of experience can be taken into account in lieu of degree.
• Experience with the following emerging technologies or an equivalent technology: Kubernetes, Open Shift, Containers, GitHub, Ansible Tower
• Experience with web servers and use of certificates
• Open Source: Apache Hadoop, Zookeeper, Puppet
• App Servers: JBoss, Tomcat, Jetty, NGINX, HTTP
• 2-3 years of experience with web server management and implementation; troubleshooting of websites, applications, and security implementations.
• Understanding of virtualized infrastructure, server backup and restoral procedures, application of STIGs and cyber hardening approaches.
• Experience with log file analysis
• Experience with Red Hat Satellite tool for deploying, configuring, and maintaining Red Hat Enterprise Linux (RHEL) across physical, virtual, and cloud environments.
• Understanding of Red Hat, provisioning, and patching, often using Satellite Capsules for distributed content delivery and local services like DHCP/DNS in large or remote setups. It centralizes RHEL management, improving security and efficiency by handling subscription management, content views, and system auditing from a single console.
• Understanding of Red Hat command line tools: System Management, Manage RPM packages, and Package Management.
• TS/SCI clearance required Certifications:
• IAT II (8570) Certification
• Red Hat Certification - Red Hat Certified System Administrator (RHCSA) (Preferred) SMS is a dynamic systems integrator established in 1976, delivering talented teams and innovative, cost-effective solutions and services to support our customers' missions for more than 47 years. Our ability to hire and retain quality people in a rapidly evolving IT market is proven through our employee retention rate averaging over 3 years. At SMS, we place a high value on quality of service, customer satisfaction, and best-of-breed policies and practices, resulting in CMMI Level 3 certification and ISO registrations including 9001:2015, 20000-1:2018, and ISO/IEC 27001:2013. SMS is headquartered in McLean, Virginia, with offices and on-site operations at customer locations throughout the United States. SMS is an Equal Opportunity Employer. All qualified applicants will receive consideration for employmen t without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.