{"id":2111120,"url":"https://alion.io/job/base-2-solutions-senior-security-engineer","title":"Senior Security Engineer","company":{"id":3900854,"name":"Base-2 Solutions","domain":"base-2solutions.com","url":"https://alion.io/company/base-2-solutions","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Schema","truth_index":{"grade":"B","score":80,"open_postings":16,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":7,"computed_at":"2026-10-10T05:45:15Z"}},"role":"Security","role_family":"Security","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":["Bethesda, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":102000,"max_usd":200000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1093},"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Active Directory","optional":false},{"name":"DHCP","optional":false},{"name":"DNS","optional":false},{"name":"Linux","optional":false},{"name":"Microsoft Excel","optional":false},{"name":"Nessus","optional":false},{"name":"SIEM","optional":false},{"name":"Splunk","optional":false},{"name":"TCP/IP","optional":false},{"name":"Windows","optional":false},{"name":"Windows Server","optional":false}],"status":"live","first_seen_at":"2026-09-30T00:00:00Z","employer_posted_date":"2026-09-30","last_verified_at":"2026-10-11T02:02:13Z","board_verified":true,"closed_at":null,"days_open":11,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":11},"description":"LocationBethesda, Maryland\n Security clearanceTop Secret/SCI\n Work arrangementOn-Site\n Requisition5282\n Apply for this role(opens in a new tab) Opens this requisition in our secure applicant portal.\n Position Summary\n Base-2 Solutions is seeking a Senior Security Engineer to serve as the technical lead for day-to-day security activities supporting enterprise and isolated environments. This hands-on technical lead will provide technical leadership and oversight for security operations, vulnerability management, RMF/ATO support, continuous monitoring, and security engineering activities. The position is 100% on-site, with all work performed at the customer site in Bethesda, MD.\nEssential Duties and Responsibilities\n Lead and coordinate day-to-day security operations, establish priorities, and assign and track activities across the security team.\nProvide technical leadership and guidance to security personnel, system administrators, engineers, and other technical teams.\nLead vulnerability management from identification through closure, including analysis, prioritization, remediation, validation, and documentation.\nCoordinate vulnerability remediation across Windows, Linux, network, desktop support, and other engineering teams, and provide hands-on support for complex or high-priority issues as needed.\nOversee and perform vulnerability scanning and analysis using ACAS, Tenable/Nessus, or equivalent technologies.\nOversee implementation and validation of DISA STIGs and approved security configuration baselines across infrastructure systems.\nEnsure recurring security activities are performed, including audit log and account reviews, vulnerability reviews, security control validation, and continuous monitoring.\nSupport and oversee RMF/ATO activities, including security documentation, control evidence, Body of Evidence (BoE), POA&Ms, and compliance with NIST SP 800-53, ICD 503, and applicable security directives.\nWork with the ISSM to translate security and compliance requirements into technical and operational activities and evaluate system or configuration changes for potential security impact.\nProvide security oversight and technical support for isolated or restricted environments, including vulnerability scanning, logging, patching, hardening, and security monitoring.\nReview security logs and events using Splunk or equivalent SIEM/log-management technologies and ensure identified issues are appropriately addressed.\nDevelop and maintain repeatable security processes and procedures for vulnerability management, compliance monitoring, evidence collection, and security operations.\nTrack security risks, deficiencies, remediation activities, and compliance status, and communicate status, risks, and recommendations to customer and program leadership.\nParticipate in Technical Exchange Meetings (TEMs), security reviews, engineering meetings, and customer discussions related to system security and accreditation.\nManage, supervise, and mentor security and technical staff as assigned.\nRequired Qualifications\n Education and relevant experience meeting an applicable pathway in the Required Education and Experience Equivalency section.\nExperience with application performance and latency problems related to security requirements from front, middle, and back end.\nWorking experience with Windows Server 2016/2019, Active Directory, IIS, DNS, DHCP, Exchange, and DFS.\nExperience implementing security controls on common network services such as file, email, and Active Directory across multiple geographically dispersed sites.\nExperience with networking technologies and security assessment, including but not limited to STIGs.\nExperience implementing and supporting enterprise system security and malware monitoring and prevention tools such as Splunk, McAfee HBSS, and ACAS.\nSolid network and systems troubleshooting experience with TCP/IP, Internet security, and encryption, including data at rest and data in transit.\nAbility to produce clear and concise documents and diagrams capturing networking and operational procedures and LAN/WAN topology using MS Visio, MS Project, MS Excel, and MS Word.\nCandidate must, at a minimum, meet DoD 8570.11- IAT Level II certification requirements, currently Security+ CE, CCNA-Security, GSEC, or SSCP along with an appropriate computing environment (CE) certification.\nUS Citizenship is required due to the nature of the government contracts we support.\nPreferred Qualifications\n Experience managing and/or supervising a team of technical professionals.\nCISSP or CASP Certification.\nRequired Education and Experience Equivalency\n Bachelor's degree in Computer Science, Information Technology, or a related field with at least 8 years of relevant experience.\nAdditional years of experience may be considered in lieu of degree.\nRequired Certifications\n Candidate must, at a minimum, meet DoD 8570.11- IAT Level II certification requirements (currently Security+ CE, CCNA-Security, GSEC, or SSCP along with an appropriate computing environment (CE) certification).\nRequired Security Clearance\n Active Top Secret/SCI\nEqual Employment Opportunity\n Base-2 Solutions is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy), national origin, age, sexual orientation, gender identity, genetic information, protected veteran status, or any other characteristic protected by law, and will not be discriminated against on the basis of disability. Learn more: base-2solutions.com/eeo","description_format":"text","description_chars":5562,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Cybersecurity","DevOps & Platform Engineering","Information Security"],"lifecycle":[{"event":"open","at":"2026-10-08T22:29:32Z"}],"visa":[],"liveness":{"score":29,"band":"fade","label":"Fading","p_open":1,"p_active":0.531,"p_room":0.55,"age_days":10,"expected_fill_days":7,"reasons":["conf:2","stale_co","urgency","velocity","win:tail","comp:brand"],"computed_at":"2026-10-10T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/base-2-solutions-senior-security-engineer","json_url":"https://alion.io/job/base-2-solutions-senior-security-engineer.json","meta":{"generated_at":"2026-10-11T03:54:44Z","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","counted_by":"address","units_charged":1,"used_today":2052,"day_limit":5000,"remaining_today":2948,"minute_limit":60,"resets_at":"2026-10-12T00:00:00Z"}},"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":3900854},"rest":"https://alion.io/mcp/rest/get_company?id=3900854"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fbase-2-solutions-senior-security-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%2Fbase-2-solutions-senior-security-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%2Fbase-2-solutions-senior-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/base-2-solutions-senior-security-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fbase-2-solutions-senior-security-engineer"}]}