{"id":3237616,"url":"https://alion.io/job/parsons-system-administrator-senior","title":"System Administrator, Senior","company":{"id":4937,"name":"Parsons","domain":"parsons.com","url":"https://alion.io/company/parsons","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":80,"open_postings":342,"ghost_share":0,"stale_share":0.982,"repost_share":0,"time_to_fill_p50_days":16,"computed_at":"2026-10-28T05:59:10Z"}},"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":122000,"max_usd":232000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1808},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Active Directory","optional":false},{"name":"Linux","optional":false},{"name":"Nessus","optional":false},{"name":"VMWare","optional":false},{"name":"Windows","optional":false}],"status":"live","first_seen_at":"2026-06-10T00:00:00Z","employer_posted_date":"2026-06-10","last_verified_at":"2026-10-29T01:07:43Z","board_verified":true,"closed_at":null,"days_open":141,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":141},"description":"In a world of possibilities, pursue one with endless opportunities. Imagine Next!At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full potential. Unleash your talent and redefine what’s possible.Job Description:\nParsons is the premier national security and critical infrastructure solutions provider. We have unparalleled tactical-to-strategic level experience in securing the platform and operational technology of National Security Systems - a mission at the heart of our intersecting work across defense, intelligence, and critical infrastructure.\nWe deliver value through scalable, fast, disruptive solutions to our customers’ most complex national security and critical infrastructure challenges.\n\nWe provide deep domain expertise to develop solutions both for now and for the future.\n\nWe apply our exceptional technology capabilities to stay ahead of the competition and our customers’ needs.\n\nWe layer and integrate solutions to provide unmatched innovation.\n\nOur National Security Solutions team needs a Sr. System Administrator to support our expanding portfolio of work in the Intelligence Community (IC). As a collaborative member of a small and mostly autonomous team, this position directly supports secure enclave development networks.\nCore Tasks:\nConduct functional and connectivity testing to ensure continuing operability.\n\nDevelop and document systems administration standard operating procedures.\n\nMaintain baseline system security according to organizational policies.\n\nManage accounts, network rights, and access to systems and equipment.\n\nPlan, execute, and verify data redundancy and system recovery procedures.\n\nInstall, update, and troubleshoot systems and servers.\n\nComply with organization systems administration standard operating procedures.\n\nImplement and enforce local network usage policies and procedures.\n\nManage system and server resources including performance, capacity, availability, serviceability, and recoverability.\n\nMonitor and maintain system and server configurations.\n\nPerform repairs on faulty system and server hardware.\n\nTroubleshoot hardware/software interface and interoperability problems.\n\nRequired:\nBachelor’s degree in a technical discipline and 15 years’ experience as a System Administrator, OR High school diploma and 20 years’ experience as a System Administrator\n\nExperience with Windows Sever Administration, Active Directory, and Group Policy\n\nFamiliarity with Linux Server Administration\n\nFamiliarity with VMware/ESXi, VMWare Virtual Networking, and VMware vCenter\n\nNetworking Switching and Router Management\n\nStorage Management (NetApp)\n\nHardware and Operating System troubleshooting\n\nSystem hardening\n\nSecurity Compliance Scanning (Nessus, ACAS)\n\nUnderstanding of project design within the scope of security (RMF) requirements\n\nActive TS/SCI security clearance with polygraph\n\nActive DoD IAT Level II certification (e.g. CCNA-Security, CySA+, GICSP, GSEC, Security+ CE, CND, SSCP)\n\nAbility to demonstrate cyber/IT related experience with attention to detail, customer service, oral and written communication, and problem solving.\n\n Security Clearance Requirement:\nAn active Top Secret SCI w/Polygraph security clearance is required for this position.This position is part of our Federal Solutions team.The Federal Solutions segment delivers resources to our US government customers that ensure the success of missions around the globe. Our intelligent employees drive the state of the art as they provide services and solutions in the areas of defense, security, intelligence, infrastructure, and environmental. We promote a culture of excellence and close-knit teams that take pride in delivering, protecting, and sustaining our nation's most critical assets, from Earth to cyberspace. Throughout the company, our people are anticipating what’s next to deliver the solutions our customers need now.Salary Range: $148,300.00 - $266,900.00We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as medical, dental, vision, paid time off, 401(k), life insurance, flexible work schedules, and holidays to fit your busy lifestyle!Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status.We truly invest and care about our employee’s wellbeing and provide endless growth opportunities as the sky is the limit, so aim for the stars! Imagine next and join the Parsons quest-APPLY TODAY!Parsons is aware of fraudulent recruitment practices. To learn more about recruitment fraud and how to report it, please refer to https://www.parsons.com/fraudulent-recruitment/.","description_format":"text","description_chars":4993,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"high_school","optional":false},"security_clearance":true,"languages":[]},"benefits":["Flexible schedule","Growth opportunities","Life insurance"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["C4ISR","Civil & Structural Engineering","Homeland Security","Engineering Services"],"lifecycle":[{"event":"open","at":"2026-10-25T13:12:07Z"}],"visa":[],"liveness":{"score":4,"band":"cold","label":"Long shot","p_open":1,"p_active":0.146,"p_room":0.28,"age_days":140,"expected_fill_days":16,"reasons":["conf:4","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-28T05:59:10Z"},"pay":null,"html_url":"https://alion.io/job/parsons-system-administrator-senior","json_url":"https://alion.io/job/parsons-system-administrator-senior.json","meta":{"generated_at":"2026-10-29T05:20:04Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":8151,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":4937},"rest":"https://alion.io/mcp/rest/get_company?id=4937"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fparsons-system-administrator-senior"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fparsons-system-administrator-senior"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fparsons-system-administrator-senior"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/parsons-system-administrator-senior\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fparsons-system-administrator-senior"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3237616}},{"tool":"search_jobs","arguments":{"company":"parsons.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3237616},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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