{"id":2766985,"url":"https://alion.io/job/leidos-junior-security-engineer-2","title":"Junior Security 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":79,"open_postings":237,"ghost_share":0.004,"stale_share":0.84,"repost_share":0.004,"time_to_fill_p50_days":27,"computed_at":"2026-10-21T05:46:15Z"}},"role":"Security","role_family":"Security","seniority":"junior","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":{"min":69550,"max":125725,"currency":"USD","period":"year","gross":null,"usd_annual":125725},"salary_estimate":null,"experience_years_min":2,"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":"2026-10-13T00:00:00Z","employer_posted_date":"2026-10-13","last_verified_at":"2026-10-21T04:28:42Z","board_verified":true,"closed_at":null,"days_open":8,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":8},"description":"General program information and/or position overview.\nLeidos is seeking a Junior Security Engineer to support day-to-day security activities across enterprise and isolated environments. This position will provide hands-on support for security operations, vulnerability management, RMF/ATO activities and continuous monitoring.\nThe individual will work closely with senior security personnel, system administrators, engineers and other technical teams to implement security requirements, identify and remediate security issues and maintain the overall security posture of the environment.\nThis position provides an opportunity to develop across multiple areas of cybersecurity, including vulnerability management, security engineering, RMF/ATO, system hardening and continuous monitoring. The individual will be given opportunities to take on increased technical responsibility as their knowledge and experience grow.\nThis is a 100% on-site position. All work must be performed at the customer site.\nPrimary Responsibilities\nPerform day-to-day security activities under the direction of senior security personnel and escalate risks, technical issues and blockers as appropriate.\nSupport vulnerability management activities from identification through closure, including analysis, remediation, validation and documentation.\nPerform vulnerability scanning and analyze findings using ACAS, Tenable/Nessus or equivalent technologies.\nWork with Windows, Linux, network, desktop support and other engineering teams to assist with vulnerability remediation and security-related technical issues.\nImplement and validate DISA STIGs and approved security configuration baselines across infrastructure systems.\nPerform recurring security activities, including audit log reviews, account reviews, vulnerability reviews, security control validation and continuous monitoring.\nSupport 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.\nAssist with reviewing system and configuration changes for potential security impact and document findings for review by senior security personnel and the ISSM.\nSupport security activities 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 escalate identified issues as appropriate.\nAssist with maintaining security procedures, documentation, compliance evidence and vulnerability remediation records.\nTrack assigned security findings, remediation activities and action items through completion and provide status updates as required.\nParticipate in security reviews, engineering meetings and Technical Exchange Meetings (TEMs) as required.\nResearch security vulnerabilities, technical requirements and remediation approaches and provide findings and recommendations to senior security personnel.\nDevelop technical knowledge across the environment and take on increased responsibility for security activities as experience and proficiency grow.\nBasic Qualifications\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, 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 to include, 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 (data at rest, 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)\nEducation/Experience Requirements\nBachelor's degree with at least 2 years of relevant experience. Additional years of experience may be considered in lieu of degree.\nClearance\nActive TS/SCI clearance with Polygraph required OR active TS/SCI and willingness to get a Poly.\nUS Citizenship is required due to the nature of the government contracts we support.\nPreferred Qualifications\nCISSP or CASP Certification\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 13, 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 $69,550.00 - $125,725.00The 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":5838,"description_truncated":false,"requirements":{"experience_years_min":2,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Equity"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["National Security","C4ISR","Defense Manufacturing","Engineering Services"],"lifecycle":[{"event":"open","at":"2026-10-17T04:26:40Z"}],"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":"2026-10-15T11:24:14+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":4}],"liveness":{"score":61,"band":"ok","label":"Likely open","p_open":1,"p_active":0.613,"p_room":1,"age_days":8,"expected_fill_days":27,"reasons":["conf:1","stale_co","velocity","win:early","comp:junior,brand"],"computed_at":"2026-10-21T05:46:15Z"},"pay":{"stated_usd_annual":125725,"is_top_pay":true},"html_url":"https://alion.io/job/leidos-junior-security-engineer-2","json_url":"https://alion.io/job/leidos-junior-security-engineer-2.json","meta":{"generated_at":"2026-10-21T09:45:20Z","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":13864,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-22T00:00:00Z"}},"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-junior-security-engineer-2"},{"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-junior-security-engineer-2"},{"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-junior-security-engineer-2"},{"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-junior-security-engineer-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fleidos-junior-security-engineer-2"}]}