{"id":2489484,"url":"https://alion.io/job/mantech-endpoint-security-system-administrator","title":"Endpoint Security System Administrator","company":{"id":179527,"name":"ManTech","domain":"mantech.com","url":"https://alion.io/company/mantech","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Avature","truth_index":{"grade":"A","score":100,"open_postings":91,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":8,"computed_at":"2026-10-14T06:34:16Z"}},"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":["Doral, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":116000,"max_usd":227000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1413},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-10-14T01:38:22Z","employer_posted_date":"2026-10-14","last_verified_at":"2026-10-14T14:52:54Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now-protect and innovate with MANTECH!\nMANTECH seeks a motivated, career and customer-oriented Endpoint Security System Administrator to join our team in Doral, FL.\nResponsibilities include but are not limited to:\nInstalling, configuring, maintaining, and administering Enterprise Security System (ESS/HBSS) modules and endpoint security capabilities.\nManaging endpoint policy enforcement, agent deployments, vulnerability scanning, and security baseline compliance across enterprise systems.\nConducting routine system troubleshooting, event monitoring, threat detection, and incident response coordination.\nMaintaining system baselines, agent software repositories, and configuration management controls for security tools.\nCollaborating with cross-functional technical teams, systems administrators, and cybersecurity leadership to optimize network defense.\nPerforming security updates, system patches, engine upgrades, and baseline verification across physical and virtual assets.\nRecommending and implementing continuous process improvements to streamline ESS management and operational security.\nMinimum Qualifications:\nBachelor’s degree in Computer Science, Information Technology, Cybersecurity, or a related field with 5+ years of experience in systems or security administration.OR a master’s degree and 3+ or more years of relevant experience\nOR an associate’s degree and 7+ or more years of relevant experience\nOR a high school diploma and 9+ or more years of relevant experience\n\nProven experience administering Trellix/McAfee Enterprise Security System (ESS/HBSS) policies, modules, and ePolicy Orchestrator (ePO).\nStrong background in endpoint protection, host intrusion prevention, rogue system detection, and security compliance auditing.\nExperience maintaining baseline configurations, patch management schedules, and security event logs.\nExperience creating, maintaining, and communicating complex technical documentation and security administration workflows.\nPreferred Qualifications:\nRelevant professional certifications such as CompTIA Security+, Trellix/HBSS Advanced Administrator, or CISSP.\nPrior experience supporting U.S. Military Command operations or Department of Defense enterprise technical environments.\nFamiliarity with DoD STIG implementation, vulnerability management tools (e.g., ACAS), and automated compliance reporting.\nDemonstrated ability to collaborate effectively across multi-disciplinary engineering teams in dynamic operational settings.\nClearance Requirements:\nMust hold a current/active top secret security clearance.\nPhysical Requirements:\nMust be able to remain in a stationary position 50%.\nNeeds to occasionally move about inside the office to access file cabinets, office machinery, etc.\nFrequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.\nMANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.\nIf you need a reasonable accommodation to apply for a position with MANTECH, please email us at  and provide your name and contact information.","description_format":"text","description_chars":3707,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"high_school","optional":false},"security_clearance":true,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Endpoint Security","Vulnerability Management","Information Security","IT Consulting & Digital Transformation"],"lifecycle":[{"event":"open","at":"2026-10-14T01:38:22Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":8,"reasons":["conf:4","win:early","comp:brand"],"computed_at":"2026-10-14T06:34:16Z"},"pay":null,"html_url":"https://alion.io/job/mantech-endpoint-security-system-administrator","json_url":"https://alion.io/job/mantech-endpoint-security-system-administrator.json","meta":{"generated_at":"2026-10-14T18:25:07Z","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":23902,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-15T00:00:00Z"}},"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":179527},"rest":"https://alion.io/mcp/rest/get_company?id=179527"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmantech-endpoint-security-system-administrator"},{"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%2Fmantech-endpoint-security-system-administrator"},{"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%2Fmantech-endpoint-security-system-administrator"},{"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/mantech-endpoint-security-system-administrator\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmantech-endpoint-security-system-administrator"}]}