Req ID: RQ176877Type of Requisition: RegularClearance Level Must Be Able to Obtain: Top Secret/SCIJob Family: Systems AdministrationSkills:DISA STIG,Enterprise Servers,LDAP Authentication,Red Hat Enterprise Linux (RHEL),System BackupsCertifications:Security+, CE - Comptia Security Experience:5 + years of related experienceUS Citizenship Required:YesJob Description:Transform technology into opportunity as a Systems Administrator Senior with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT you ll be at the forefront of innovation and play a meaningful part in improving how agencies operate.General Dynamics Information Technology (GDIT) seeks a highly motivated and experienced Enterprise Red Hat Enterprise Linux (RHEL) Administrator to support the Defense Threat Reduction Agency (DTRA) mission in Fort Belvoir, VA. This position will support the Defense Stockpile Management Systems (DSMS) which includes the following systems: Defense Integration and Management of Nuclear Data Services (DIAMONDS), Joint Application Design Environment (JADE), Nuclear Inventory Management and Cataloging System (NIMACS), Government Acceptance Testing (GAT), and DIAMONDS Accountability Training System (DATS).HOW A SYSTEMS ADMINISTRATOR SENIOR WILL MAKE AN IMPACTCollaborate with stakeholders and technical operation teams to analyze, develop, configure, test, integrate, and maintain all associated RHEL systems.Develop and maintain efficient and scalable RHEL platform configuration management practices, services, and baseline configurations.Execute needs assessments, gap analyses, and develop associated solutions for RHEL platforms.Deploy, configure, and maintain patches, configurations, upgrades, and applicable documentation for RHEL platforms.Troubleshoot, isolate, and resolve RHEL platform issues.Implement, manage, and audit DISA STIGs and the remediation or mitigation of vulnerabilities associated with RHEL platforms and services.Acts as one of the primary points of contact to provide RHEL platform support for application associated systems and services.WHAT YOU LL NEED TO SUCCEED:Required Knowledge, Skills, and Abilities:Capability to work both independently and as part of a team.Strong communication and collaboration skills.Advanced problem solving and critical thinking abilities.Adept in the exclusive use and navigation of the RHEL command line interface.Holistic understanding of RHEL platform interactions with external applications, platforms, and services (e.g., Active Directory/LDAP integration, network file service protocols, Active Directory Certificate Services).Intermediate RHEL 7 and 8 platform system administration skills and knowledge of configuration of technologies and services provided.Demonstrated knowledge and utilization of Ansible ad hoc and playbook executions.Significant experience with the development and execution of shell scripts.Basic knowledge and operation of Windows based platforms, services, and applications.Basic knowledge and operation of VMware vSphere 7 (or later).Preferred Knowledge, Skills, and Abilities:Experience supporting: Appian Platform, Tenable Security Center + Nessus (ACAS), Trellix ESS (client-side), Puppet, Chef, IdM, and git repositories.Intermediate experience with RHEL 7 and 8 platform system engineering and concepts (e.g., automation, orchestration, strategic planning).Appreciation and understanding of DevSecOps concepts and practices.Basic knowledge of SecurID RSA multifactor authentication RHEL client configurations.Strong work ethic, motivation, and a high desire to learn.Effective time management and organization skills.Qualifications:BS degree in a related field, this can be substituted by work experience.Required: 5+ years of experience.Required: Fully adjudicated Top Secret clearance w/ TS/SCI eligibility.Required Certifications: DoD 8570 IAT Level II (e.g., CompTIA Security+ CE)Preferred Certifications: Red Hat (e.g., Red Hat Certified System Administrator/RHCSA), Oracle Certified Professional - Oracle Linux System Administrator/OCP - OLSA)GDIT IS YOUR PLACE:Full-flex work week to own your priorities at work and at home401K with company matchComprehensive health and wellness packagesInternal mobility team dedicated to helping you own your careerProfessional growth opportunities including paid education and certificationsCutting-edge technology you can learn fromRest and recharge with paid vacation and holidays#armajobsThe likely salary range for this position is $110,500 - $149,500. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 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.To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available.We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 30 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.We connect people with the most impactful client missions, creating an unparalleled work experience that allows them to see their impact every day. We create opportunities for our people to lead and learn simultaneously. From securing our nation s most sensitive systems, to enabling digital transformation and cloud adoption, our people are the ones who make change real.GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.