{"id":2636821,"url":"https://alion.io/job/mantech-gccs-systems-administrator","title":"GCCS Systems 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":88,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":9,"computed_at":"2026-10-16T05:45:00Z"}},"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":108000,"max_usd":209000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1602},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Unix","optional":false},{"name":"Windows","optional":false},{"name":"Windows Server","optional":false},{"name":"Oracle","optional":true},{"name":"Red Hat","optional":true}],"status":"live","first_seen_at":"2026-10-15T17:32:33Z","employer_posted_date":"2026-10-15","last_verified_at":"2026-10-16T04:29:23Z","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 Global Command and Control (GCCS) Systems Administrator to join our team in Doral, FL.\nResponsibilities include but are not limited to:\nInstalling, configuring, maintaining, and administering Global Command and Control System (GCCS-J/GCCS-A/GCCS-M) servers and client workstations.\nManaging GCCS system baselines, database synchronization, track management, and C4I system interfaces across operational networks.\nPerforming routine system administration, vulnerability patching, software updates, and diagnostic troubleshooting on Solaris, Linux, and Windows platforms.\nMaintaining system configuration baselines, operational logs, and data feed synchronization across theater command networks.\nCollaborating with cross-functional technical teams, network engineers, and operational staff to ensure high GCCS availability.\nExecuting system backups, disaster recovery procedures, and security compliance verification for mission-critical command systems.\nRecommending and implementing continuous process improvements to enhance GCCS operational performance and data reliability.\nMinimum Qualifications:\nBachelor’s degree in Computer Science, Information Technology, Systems Engineering, or a related field with 5+ years of experience in systems 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 and maintaining Global Command and Control System (GCCS) variants (GCCS-J, GCCS-A, or GCCS-M) in an enterprise environment.\nStrong background in Unix/Solaris, Linux (RHEL), and Windows server administration, including database management and command track synchronization.\nExperience maintaining system baselines, configuration management controls, and patch management protocols.\nExperience creating, maintaining, and communicating complex technical documentation and system baseline architecture diagrams.\n\nPreferred Qualifications:\nRelevant professional certifications such as CompTIA Security+, Red Hat Certified System Administrator (RHCSA), or Oracle Certified Associate (Solaris).\nPrior experience supporting U.S. Military Command operations, Combatant Command environments, or Department of Defense C4I infrastructure.\nFamiliarity with DoD STIG implementation, DISA compliance standards, and automated vulnerability scanning tools (ACAS).\nDemonstrated ability to collaborate effectively across multi-disciplinary engineering teams in fast-paced operational environments.\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":3891,"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":["National Security","Information Security","IT Consulting & Digital Transformation"],"lifecycle":[{"event":"open","at":"2026-10-15T17:32:33Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":0,"expected_fill_days":9,"reasons":["conf:1","velocity","win:early","comp:brand"],"computed_at":"2026-10-16T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/mantech-gccs-systems-administrator","json_url":"https://alion.io/job/mantech-gccs-systems-administrator.json","meta":{"generated_at":"2026-10-16T07:32:06Z","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":5379,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-17T00:00:00Z"}},"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-gccs-systems-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-gccs-systems-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-gccs-systems-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-gccs-systems-administrator\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmantech-gccs-systems-administrator"}]}