{"id":3570388,"url":"https://alion.io/job/saic-senior-systems-administrator-rhel","title":"Senior Systems Administrator - RHEL","company":{"id":58788,"name":"SAIC","domain":"saic.com","url":"https://alion.io/company/saic","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"B","score":78,"open_postings":82,"ghost_share":0,"stale_share":0.89,"repost_share":0.012,"time_to_fill_p50_days":24,"computed_at":"2026-11-04T06:34:25Z"}},"role":"DevOps","role_family":"DevOps","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Springfield, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":118000,"max_usd":225000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1808},"experience_years_min":1,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Ansible","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Bash","optional":false},{"name":"Chef","optional":false},{"name":"DNS","optional":false},{"name":"Grafana","optional":false},{"name":"Hyper-V","optional":false},{"name":"ITIL","optional":false},{"name":"Linux","optional":false},{"name":"MS SQL","optional":false},{"name":"Nagios","optional":false},{"name":"NIST 800-53","optional":false},{"name":"PowerShell","optional":false},{"name":"Python","optional":false},{"name":"Red Hat","optional":false},{"name":"Splunk","optional":false},{"name":"TCP/IP","optional":false},{"name":"VMWare","optional":false},{"name":"Windows","optional":false},{"name":"Windows Server","optional":false}],"status":"live","first_seen_at":"2026-10-26T20:22:23Z","employer_posted_date":"2026-10-26","last_verified_at":"2026-11-04T06:13:29Z","board_verified":true,"closed_at":null,"days_open":8,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":8},"description":"SAIC is seeking a highly motivated and experiencedSenior Systems Administrator - RHEL to join our MAJESTIC Joint Program Office (JPO) Team in Springfield, VA. This individual will play an integral role in managing and optimizing mission-critical Red Hat Enterprise Linux (RHEL) systems in a hybrid IT enterprise environment.\nThe ideal candidate will have in-depth expertise in RHEL system administration, including configuration, maintenance, and performance optimization. Additionally, experience with virtualized environments and enterprise systems, including Windows Server and HCI solutions, is critical. The candidate will ensure system security, reliability, and efficiency while collaborating with cross-functional teams to support operations. This position requires on-site support in a high-security, fast-paced environment.\nKey Responsibilities:\nAdminister, configure, and maintain Red Hat Enterprise Linux (RHEL) systems, including patching, upgrades, tuning, and troubleshooting\nPerform advanced system administration forvirtualized environments, such as VMware vSphere or Nutanix AHV\nImplement and enforcesystem hardening procedures for RHEL platforms to align with security and compliance requirements, includingSTIGs andNIST 800-53 guidelines\nAutomate regular administrative tasks usingBash,Python, or tools likeAnsible\nMonitor and optimize system performance, storage, and network interfaces using tools like Splunk, Nagios, SolarWinds, or Grafana\nPerform disaster recovery (DR) and high availability (HA) operations on Linux-based and hybrid enterprise systems\nManage centralized logging and monitoring for Linux systems to ensure audit compliance and detect vulnerabilities\nCollaborate with cross-functional teams to ensure smooth integration of RHEL systems with Windows Server, HCI technologies, and other enterprise IT environments\nDocument standard operating procedures (SOPs), configuration changes, topology maps, and troubleshooting guides\nSupport the evaluation of emerging RHEL and infrastructure technologies and recommend new solutions to enhance infrastructure performance and security\n Required Qualifications:\nEducation:\nHigh School Diploma/GED\nCertifications (CWF Requirements):\nCandidates must satisfy Cybersecurity Workforce Framework (CWF) ID 451 (System Administrator - Intermediate Level) requirements, as outlined by Navy COOLThis requirement can be met by possessing one or more of the following qualifying certifications: \n\nCompTIA Cloud+ \nCompTIA Security+ \nGIAC Global Industrial Cyber Security Professional (GICSP) \nGIAC Security Essentials Certification (GSEC) \nSystems Security Certified Practitioner (SSCP)\nOR This requirement can be met through:\nABachelor’s Degree in Cybersecurity, Computer Science, IT, or a related field\nExperience:\n1-3 years of professional experience managing and supporting enterprise-levelIT environments\nTechnical Skills:\nExpert in managing Red Hat Enterprise Linux (RHEL) systems, including provisioning, upgrades, system tuning, patching, and performance optimization\nStrong experience in system automation with tools like Ansible, Puppet, or Chef as well as scripting in Bash, Python, or PowerShell\nFamiliarity with high availability (HA) concepts, including clustering for Linux environments\nProficiency in monitoring and diagnostics tools (e.g., Splunk, SolarWinds, Grafana, or Nagios)\nStrong understanding of virtualization platforms, including VMware vSphere, Nutanix AHV, or Hyper-V\nKnowledge of networking technologies and protocols, including TCP/IP, DNS, VLANs, and load balancing configurations for Linux systems\nExperience supporting compliance with industry standards like RMF, NIST 800-53, and DoD cybersecurity guidelines\nPreferred Certifications (In Addition to CWF Requirements):\n Red Hat Certified Engineer (RHCE) certification (strongly preferred)\n Nutanix Certified Professional (NCP) certification or VMware Certified Professional (VCP)\nFamiliarity with cloud platforms (e.g., Microsoft Azure, AWS) and hybrid cloud/hybrid IT implementations\nKnowledge of storage technologies and backup solutions\nITIL v4 certifications for service management processes\nClearance Requirement:\nActiveTS/SCI clearance with the ability to obtain and maintain aTS/SCI with Poly\nCandidate must be US Citizen\nWork Environment and Notes:\nOn-Site Work: All work must be conductedon-site in Springfield, VA\nProgram Scope: Supports on-premises enterprise IT environments, including virtualized Windows servers, MS SQL Server databases, and networking layers\n Subcontractor Role: Responsibilities and compensation vary based on the subcontract agreement, with a competitive salary aligned to market rates and 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