{"id":3231649,"url":"https://alion.io/job/leidos-linux-systems-engineer","title":"Linux Systems Engineer","company":{"id":7791,"name":"Leidos","domain":"leidos.com","url":"https://alion.io/company/leidos","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":78,"open_postings":303,"ghost_share":0.003,"stale_share":0.878,"repost_share":0.01,"time_to_fill_p50_days":28,"computed_at":"2026-11-03T05:54:40Z"}},"role":"DevOps","role_family":"DevOps","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Chantilly, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":131300,"max":237350,"currency":"USD","period":"year","gross":null,"usd_annual":237350},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Linux","optional":false},{"name":"Docker","optional":true},{"name":"PKI","optional":true},{"name":"Red Hat","optional":true},{"name":"VMWare","optional":true}],"status":"closed","first_seen_at":"2026-10-22T00:00:00Z","employer_posted_date":"2026-10-22","last_verified_at":"2026-10-29T14:58:48Z","board_verified":false,"closed_at":"2026-10-29T14:58:48Z","days_open":7,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":7},"description":"Leidos is seeking a Linux Systems Engineer to support a mission-critical customer environment in Chantilly, VA. This position is ideal for a hands-on Linux administrator or systems engineer with experience supporting Linux servers in virtualized environments and maintaining system security and compliance requirements.\nThe successful candidate will support day-to-day system administration, engineering, configuration management, virtualization, and security operations across a multi-network environment.\nCandidates must currently possess an active TS/SCI with the required Polygraph and be eligible for customer crossover.\nPrimary Responsibilities\nAdminister, configure, maintain, and troubleshoot Linux-based systems and servers within a virtualized environment.\nMaintain the operational security posture of information systems and support day-to-day system security operations.\nPerform and support system vulnerability scans, security audits, remediation, and compliance activities.\nImplement and maintain system security configurations and requirements.\nProvide configuration management for information system hardware, software, firmware, and security components.\nSupport system engineering activities, including planning, designing, analyzing, and improving hardware- and software-based system processes.\nTroubleshoot complex system and infrastructure issues and develop effective technical solutions.\nSupport systems operating across multiple network environments.\nWork collaboratively with engineers, developers, technicians, analysts, and users to identify requirements and resolve technical issues.\nInvestigate and document existing system architectures and configurations.\nSupport operational systems in a dynamic mission environment.\nBasic Qualifications\nActive TS/SCI with the required Polygraph.\nBachelor's degree and approximately 12 years of relevant experience.\nAt least four years of recent experience supporting systems engineering, system administration, system processes, and/or software development methodologies.\nDemonstrated hands-on experience with Linux system administration and engineering.\nExperience maintaining the security posture of information systems, including system scans, security audits, and day-to-day security operations.\nExperience with configuration management of system hardware, software, firmware, and security components.\nDemonstrated ability to troubleshoot and solve complex technical problems.\nExperience working as part of a multidisciplinary technical team.\nStrong verbal and written communication skills.\nPreferred Qualifications\nExperience with Red Hat Enterprise Linux (RHEL).\nExperience implementing or maintaining DISA STIGs or similar system-hardening/security-compliance requirements.\nExperience with virtualization and container technologies such as VMware, Red Hat Virtualization, and Docker.\nExperience configuring, deploying, or maintaining Identity and Access Management (IdAM), Multi-Factor Authentication (MFA), and PKI-enabled systems.\nExperience translating user and developer use cases into technical system requirements.\nExperience documenting existing system architectures.\nExperience supporting operational mission systems.\nIf you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.\nOriginal Posting:\nOctober 22, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.\nPay Range:\nPay Range $131,300.00 - $237,350.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.","description_format":"text","description_chars":4279,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["National Security","C4ISR","Defense Manufacturing","Engineering Services"],"lifecycle":[{"event":"open","at":"2026-10-25T08:40:11Z"},{"event":"close","at":"2026-10-29T14:58:48Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 50 · green card filings: 24","filings_12m":50,"filings_prev_12m":58,"green_card_filings_12m":24,"median_offered_wage_usd":124257,"route":null,"cap_exempt":false,"checked_at":"2026-10-29T16:27:21+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":24}],"liveness":null,"pay":{"stated_usd_annual":237350,"is_top_pay":true},"html_url":"https://alion.io/job/leidos-linux-systems-engineer","json_url":"https://alion.io/job/leidos-linux-systems-engineer.json","meta":{"generated_at":"2026-11-03T06:19:09Z","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":8813,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-04T00:00:00Z"}},"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":7791},"rest":"https://alion.io/mcp/rest/get_company?id=7791"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fleidos-linux-systems-engineer"},{"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%2Fleidos-linux-systems-engineer"},{"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%2Fleidos-linux-systems-engineer"},{"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/leidos-linux-systems-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fleidos-linux-systems-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3231649}},{"tool":"search_jobs","arguments":{"company":"leidos.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3231649},"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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