We are seeking a highly motivated and experienced Red Hat Enterprise Linux {RHEL) Senior Systems Administrator to join our growing IT team. In this role you will be responsible for the administration maintenance and support of our RHEL-based servers and infrastructure. You will play a critical role in ensuring the stability security and performance of our customer's IT systems. Installation configuration and maintenance of RHEL servers and workstations. Troubleshooting and resolving system-related issues including performance bottlenecks hardware failures and software conflicts. Implementing and managing system security measures and access controls. Performing regular system backups and disaster recovery procedures. Monitoring system performance and proactively identifying and resolving potential issues. Automating system administration tasks using scripting languages (e.g. Bash Python Perl). Providing technical support to end-users. Staying current with the latest RHEL updates security patches and best practices. Assisting with the implementation of new technologies and infrastructure upgrades. Collaborating with IT Management other IT teams and stakeholders to ensure smooth system operations. Perform periodic performance reporting to support capacity planning. Be able to work as a team with other cross functional teams to achieve the IPT's mission. Participate in research and development to continuously improve the organizations environment and processes. Experience/Education Due to the sensitivity of customer related requirements U.S. Citizenship is required. High school diploma/GED plus 10 years of experience or Associate's-level (AA/ AS/Technical school) plus 4 years of experience a bachelor's degree in an IT field with 2 years of experience or a master's degree in an IT field with 6 years' experience. Must be able to be granted a security clearance and maintain one for the duration of employment. Strong knowledge of RHEL administration including installation configuration and maintenance. Proficiency in shell scripting (Bash) and other scripting languages (e.g. Python Perl). Experience with system monitoring and performance tuning tools. Strong understanding of networking concepts (TCP/IP DNS routing). Experience with virtualization technologies (e.g. VMware Hyper-V). Excellent troubleshooting and problem-solving skills. Strong communication and interpersonal skills. Ability to work independently and as part of a team. Must be able to work onsite - This position is not remote work eligible. Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE) and Security+ to comply with DoD 8140. Must be willing and able to work after hours/weekend support for patching and maintenance as needed. Possess professionalism courtesy high moral character and integrity. Desired Skills Experience with automation tools (e.g. Ansible Puppet Chef). Experience with configuring and implementing Linux Security Compliance Enforcement (SCE) and FA Policy.