Linux Systems Administrator

Linux Systems AdministratorAtlanta, GA Pay From $125,000MUST Linux Administrator Public Trust Current Red Hat certification (e.g., RHCSA, RHCE, or RHCA) required10+ years of experience with Linux/UNIX systems and interoperability with WindowsStrong scripting skills in BASH, Perl, JavaScript, or PythonExperience with Ansible, RHEL Satellite, and other automation toolsExperience with Configure and manage NFTables, Firewalld, IPTables, ISC2 BIND DNS, TCP/IP, IPv4/IPv6, Postfix/SMTP RelayFamiliarity with Mirantis Container Runtime, AWS, and GitLabExcellent problem solving, communication, and documentation skillsAbility to work independently and collaboratively in a team environmentBachelor's degree in computer science, Information Systems, Cybersecurity, or related field (or equivalent combination of education and experience)MUST Seeking Systems Administrator – Linux (Red Hat Enterprise Linux) to support a mission-critical federal programThe ideal candidate will play a key role in designing, implementing, maintaining, and optimizing Linux environmentsDesign, implement, maintain, and troubleshoot Red Hat Enterprise Linux Server environments (v8v9)Develop and maintain advanced automation scripts using BASH, Perl, JavaScript, or PythonPerform administration and O&M tasks from the command lineManage task automation using tools like Ansible and RHEL SatelliteHandle package management across geographically dispersed environmentsConfigure and manage NFTables, Firewalld, IPTables, ISC2 BIND DNS, TCP/IP, IPv4/IPv6, Postfix/SMTP RelayAdminister Linux Server Clustering, NFSv3/NFSv4, PXE boot, and SELinuxSupport Mirantis Container Runtime (formerly Docker), AWS, and GitLabMaintain detailed documentation for system designs, configurations, processes, and service recordsCollaborate with cross-functional teams to support IT infrastructure projectsLead and mentor junior team membersTroubleshoot and resolve LAN/WAN connectivity and performance issuesEnsure compliance with security hardening standards (CIS, NIST SP 80053 Rev. 5, DISA STIGs)On-call Requirement: Participation in a 24/7/365 on-call rotationQuadrant is an affirmative action/equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, status as a protected veteran, or status as an individual with a disability."Healthcare benefits are offered to all eligible employees according to compliance mandated by the Affordable Care Act".