{"id":4052153,"url":"https://alion.io/job/mantech-security-engineer","title":"Security Engineer","company":{"id":179527,"name":"ManTech","domain":"mantech.com","url":"https://alion.io/company/mantech","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Avature","truth_index":{"grade":"A","score":100,"open_postings":73,"ghost_share":0,"stale_share":0,"repost_share":0.041,"time_to_fill_p50_days":15,"computed_at":"2026-11-10T06:52:35Z"}},"role":"Security","role_family":"Security","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":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"DHCP","optional":false},{"name":"DNS","optional":false}],"status":"live","first_seen_at":"2026-11-11T02:14:17Z","employer_posted_date":"2026-11-11","last_verified_at":"2026-11-11T02:14:17Z","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 Security Engineer to join our team in Doral, FL.\nResponsibilities include but are not limited to:\nDesigning, deploying, configuring, and administering F5 BIG-IP Local Traffic Managers (LTM), Access Policy Managers (APM), and Application Security Managers (ASM).\nManaging, configuring, and maintaining RSA SecurID Authentication Manager infrastructure and multifactor authentication (MFA) token deployments across mission networks.\nAdministering, optimizing, and troubleshooting Infoblox Grid enterprise DNS, DHCP, and IP Address Management (IPAM) core network services.\nCollaborating with cross-functional technical teams, network engineers, and system administrators to maintain secure system access control and traffic management.\nConducting routine system patch management, security upgrades, baseline configuration management, and diagnostic troubleshooting for specialized security appliances.\nMaintaining system baselines, configuration management records, and engineering documentation across physical and virtual network environments.\nRecommending and implementing continuous engineering process improvements to enhance system redundancy, security compliance, and traffic performance.\nMinimum Qualifications:\nBachelor’s degree in Systems Engineering, Computer Science, Information Technology, or a related field with 5+ years of experience in network security engineering.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 configuring, administering, and troubleshooting F5 BIG-IP appliances (LTM, APM, ASM), RSA SecurID systems, and Infoblox DDI infrastructure.\nStrong background in network security engineering, SSL/TLS offloading, access management, DNS/DHCP protocol analysis, and traffic management.\nExperience maintaining system baselines, configuration management controls, and security patch deployment schedules.\nExperience creating, maintaining, and communicating complex technical engineering documentation and architecture diagrams.\nPreferred Qualifications:\nRelevant professional certifications such as F5 Certified Technology Specialist (F5-CTS), Infoblox Core Certified Administrator (ICCA), RSA Certified Administrator, or CompTIA Security+.\nPrior experience supporting U.S. Military Command operations, Combatant Command environments, or Department of Defense enterprise technical environments.\nFamiliarity with DoD STIG compliance, automated vulnerability management (ACAS), and secure baseline auditing procedures.\nDemonstrated ability to collaborate effectively across multi-disciplinary engineering teams in fast-paced operational environments.\nClearance Requirements:\nMust hold a current/active TS/SCI 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":4058,"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":"2026-11-11T02:14:17Z"}],"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":15,"reasons":["conf:1","win:early","comp:brand"],"computed_at":"2026-11-11T03:56:32Z"},"pay":null,"html_url":"https://alion.io/job/mantech-security-engineer","json_url":"https://alion.io/job/mantech-security-engineer.json","meta":{"generated_at":"2026-11-11T03:56:32Z","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":3793,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-12T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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-security-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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-security-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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-security-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/mantech-security-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmantech-security-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4052153}},{"tool":"search_jobs","arguments":{"company":"mantech.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4052153},"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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