{"id":106651,"url":"https://alion.io/job/clearedge-senior-system-administrator","title":"Senior System Administrator","company":{"id":6279,"name":"ClearEdge","domain":"clearedge.com","url":"https://alion.io/company/clearedge","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":79,"open_postings":27,"ghost_share":0.259,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":199,"computed_at":"2026-10-16T05:45:00Z"}},"role":"DevOps","role_family":"DevOps","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Linthicum Heights, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":110000,"max_usd":212000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1602},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"CentOS Stream","optional":false},{"name":"Linux","optional":false},{"name":"Red Hat","optional":false},{"name":"Apache NiFi","optional":true},{"name":"Docker","optional":true},{"name":"ElasticSearch","optional":true},{"name":"Kubernetes","optional":true},{"name":"Nagios","optional":true},{"name":"Perl","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-02-09T20:00:52Z","employer_posted_date":"2026-02-09","last_verified_at":"2026-10-16T07:29:39Z","board_verified":true,"closed_at":null,"days_open":248,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":248},"description":"Your Mission\nClearEdge is hiring a Senior System Administrator to support the administration, sustainment, and security of Linux-based systems across mission environments. In this role, you will be responsible for maintaining system health, applying updates, supporting cloud-based infrastructure, and ensuring systems remain reliable, compliant, and operational. You will work closely with engineers and stakeholders to support system availability and performance in both on-prem and virtualized environments.\nThis position is ideal for an experienced system administrator who is comfortable working at the command line, enjoys maintaining stable systems, and values operational excellence.\nYou Will Excel in This Role If You:\nAre experienced administering Linux systems using the command line\nAre comfortable applying system updates and patches using yum or equivalent tools\nEnjoy maintaining system reliability and operational stability\nAre familiar with cloud-based infrastructure and virtual machines\nHave an interest in understanding how software and services are deployed on systems\nTake ownership of system sustainment and compliance\nA Day in the Life Of:\nPerforming Linux system administration on CentOS, RedHat, Amazon Linux, or equivalent platforms\nApplying system updates and patches using yum or equivalent patching repositories\nMonitoring system health and troubleshooting performance or availability issues\nSupporting systems hosted in cloud environments such as AWS or Azure\nAssisting with system configuration, maintenance, and sustainment activities\nSupporting or interacting with network and system mapping tools such as RedSeal\nWorking with engineering teams to ensure systems meet operational requirements\nMust Have:\nTS/SCI with Polygraph clearance\nLinux command line system administration experience on CentOS, RedHat, Amazon Linux, or equivalent\nExperience applying system updates and patches using yum or equivalent tools\nTen (10) years of experience as a System Administrator in programs and contracts of similar scope, type, and complexity\nBachelor’s degree in a technical discipline from an accredited college or university, or five (5) additional years of System Administrator experience in lieu of a degree\nNice to Have:\nExperience working in cloud environments such as AWS or Azure\nExperience or knowledge of the RedSeal Network Mapping tool\nFamiliarity with software commonly deployed on systems such as Elasticsearch, Docker, Kubernetes, or NiFi\nExperience with Syslog or NxLog\nExperience with Nagios or similar monitoring tools\nScripting experience using Python or Perl","description_format":"text","description_chars":2602,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Intelligence","IT Consulting & Digital 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