{"id":2262762,"url":"https://alion.io/job/leidos-principal-network-access-control-nac-engineer","title":"Principal Network Access Control (NAC) 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":"A","score":88,"open_postings":170,"ghost_share":0,"stale_share":0.676,"repost_share":0.018,"time_to_fill_p50_days":20,"computed_at":"2026-10-15T05:46:00Z"}},"role":"Networking","role_family":"Networking","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Odenton, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":116350,"max":210325,"currency":"USD","period":"year","gross":null,"usd_annual":210325},"salary_estimate":null,"experience_years_min":12,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Configuration Management","optional":false},{"name":"DHCP","optional":false},{"name":"DNS","optional":false},{"name":"Microsoft Entra ID","optional":false},{"name":"VPN","optional":false},{"name":"Active Directory","optional":true},{"name":"Ansible","optional":true},{"name":"PKI","optional":true},{"name":"Python","optional":true},{"name":"Rest API","optional":true}],"status":"live","first_seen_at":"2026-10-08T00:00:00Z","employer_posted_date":"2026-10-08","last_verified_at":"2026-10-15T09:38:53Z","board_verified":true,"closed_at":null,"days_open":7,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":7},"description":"Leidos is seeking a Principal Network Engineer specializing in enterprise wireless infrastructure to design, implement, and modernize a large-scale, geographically distributed wireless network environment.\nThe successful candidate will serve as a senior technical engineer responsible for migrating Aruba wireless controllers to a centralized cloud-hosted environment, implementing Aruba Central, improving wireless network resiliency, and standardizing wireless security and access-control capabilities.\nThis position requires extensive experience with Aruba wireless technologies, enterprise networking, wireless security, high availability, and network access control. The engineer will collaborate with cloud, network, cybersecurity, identity management, and monitoring teams to deliver reliable, scalable, and secure wireless infrastructure.\nThe engineer will support architecture, implementation, integration, testing, migration, documentation, and transition to operations while providing technical direction to other engineering personnel.\nPrimary Responsibilities\nWireless Architecture and Controller Migration\nDesign, engineer, and implement the migration of existing Aruba wireless controllers to a centralized cloud-hosted infrastructure. \nDeploy and configure Aruba Central for centralized wireless management, configuration standardization, monitoring, and operational visibility. \nDevelop controller migration strategies, implementation procedures, validation plans, and rollback processes. \nStandardize NTP configurations across wireless controllers, access points, and supporting network infrastructure. \nEvaluate and establish wireless deployment standards, including bridge versus tunnel mode and campus versus remote architectures. \nDevelop standardized configurations and deployment playbooks for geographically distributed sites. \nCoordinate cloud infrastructure integration, including connectivity, routing, security requirements, and availability. \nWireless High Availability and Network Resiliency\nDesign and implement Layer 2 and Layer 3 redundancy to improve wireless availability and service continuity. \nConfigure and validate controller failover, preemption, and recovery to preferred controllers following service restoration. \nImplement and troubleshoot VRRP, virtual IP addressing, and controller high-availability configurations. \nEvaluate and optimize DHCP, GRE tunnels, routing, and wireless traffic forwarding across centralized and distributed environments. \nDevelop and execute failover and recovery testing to validate wireless resiliency. \nTroubleshoot complex controller, routing, and wireless connectivity issues. \nWireless Security and Network Access Control\nDesign and implement enterprise wireless security standards, including WPA3, Wireless Intrusion Detection Systems (WIDS), and identity-based access controls. \nConfigure wireless security policies through Aruba Central and validate deployment to controllers and access points. \nEvaluate hardware compatibility and develop migration strategies for WPA3 adoption, including transition-mode considerations. \nStandardize wireless configurations, including 5 GHz operation, authentication, and security settings. \nIntegrate wireless infrastructure with Cisco ISE, Aruba ClearPass, and enterprise identity services. \nConfigure and troubleshoot 802.1X, RADIUS, EAP-TLS, certificate-based authentication, and wireless access policies. \nCoordinate identity-based policy integration with Microsoft Entra ID, VPN infrastructure, and firewall enforcement. \nMonitoring and Enterprise Integration\nIntegrate Aruba Central with ScienceLogic SL1 to support wireless monitoring, alerting, device discovery, and performance visibility. \nCoordinate with monitoring engineers to establish required APIs, monitoring policies, and operational dashboards. \nValidate controller status, access point availability, authentication health, and wireless performance monitoring. \nSupport integration with enterprise DNS, DHCP, NTP, routing, and security infrastructure. \nIdentify opportunities to automate wireless configuration, monitoring, and troubleshooting. \nGuest Wireless and Security Integration\nDevelop secure guest wireless architecture, including network segmentation and Internet connectivity options. \nEvaluate guest authentication methods, including temporary credentials, PPSK, and IPSK. \nSupport guest wireless security requirements, implementation planning, and authorization documentation. \nCoordinate technical security assessments, configuration validation, and required infrastructure approvals. \nTechnical Leadership and Implementation\nServe as a senior technical subject matter expert for Aruba wireless infrastructure and centralized wireless management. \nProvide technical direction, mentoring, and engineering guidance to network engineering personnel. \nLead technical design reviews, implementation planning, integration testing, and troubleshooting activities. \nIdentify technical risks, dependencies, and operational impacts associated with wireless modernization. \nEstablish repeatable engineering standards and implementation procedures for deployment teams. \nSupport production migration, validation, and transition to operations. \nDocumentation Responsibilities\nDevelop and maintain engineering and operational documentation, including:\nWireless architecture and cloud integration diagrams. \nAruba Central and controller configuration standards. \nController migration and implementation procedures. \nLayer 2/Layer 3 redundancy, VRRP, and failover designs. \nWireless security and WPA3 implementation standards. \nNAC integration and authentication policy documentation. \nNetwork connectivity, routing, and data-flow diagrams. \nScienceLogic SL1 monitoring integration requirements. \nGuest wireless architecture and security documentation. \nTest plans, validation procedures, and rollback documentation. \nStandard operating procedures and migration playbooks. \nAs-built and operations transition documentation. \nRequired Qualifications\nBachelor's degree with 12+ years of relevant experience, or Master's degree with 10+ years of relevant experience. Additional relevant experience, education, or training may be considered in lieu of a degree. \nSignificant hands-on experience engineering, implementing, and supporting enterprise Aruba wireless infrastructure, including controllers, access points, and centralized management platforms. \nExperience with Aruba Central, including configuration management, controller integration, and enterprise wireless deployments. \nStrong knowledge of enterprise wireless networking, including 802.11 standards, RF fundamentals, WLAN architecture, VLANs, routing, and switching. \nExperience implementing and troubleshooting wireless controller redundancy, high availability, failover, and network resiliency. \nExperience with wireless security and authentication, including WPA2/WPA3, 802.1X, RADIUS, and enterprise NAC platforms. \nExperience integrating wireless infrastructure with enterprise networking services, including DNS, DHCP, NTP, routing, and monitoring platforms. \nExperience developing and executing engineering designs, implementation plans, migration procedures, test plans, and production deployments. \nStrong troubleshooting and analytical skills with the ability to resolve complex wireless connectivity, authentication, and network performance issues. \nStrong written and verbal communication skills, including experience providing technical guidance and developing engineering documentation. \nClearance Requirements\nU.S. citizenship required. \nActive Secret clearance required. \nMust meet applicable cybersecurity workforce qualification requirements for the assigned position. \nPreferred Qualifications\nExperience migrating Aruba wireless controllers to cloud-hosted or centrally managed environments. \nExperience with Aruba Central On-Premises or cloud-managed Aruba deployments. \nExperience implementing VRRP, controller preemption, and Layer 2/Layer 3 failover architectures. \nExperience with bridge-mode, tunnel-mode, campus, and remote wireless architectures. \nExperience integrating Cisco ISE and Aruba ClearPass with enterprise wireless infrastructure. \nExperience integrating wireless authentication with Microsoft Entra ID, Active Directory, and PKI. \nExperience implementing WPA3, WIDS/WIPS, PPSK/IPSK, and wireless security standards. \nExperience integrating Aruba Central with ScienceLogic SL1 or comparable monitoring platforms. \nExperience designing secure guest wireless networks with isolated Internet connectivity. \nExperience with wireless RF optimization, 5 GHz deployments, and high-density environments. \nExperience with Python, REST APIs, Ansible, or similar network automation technologies. \nExperience supporting security authorization activities, configuration hardening, and compliance assessments. \nExperience supporting geographically distributed enterprise networks. \nDesired Certifications\nRelevant certifications may include:\nAruba Certified Mobility Professional (ACMP) or equivalent. \nAruba Certified Design Professional (ACDP) or equivalent. \nAruba Certified Mobility Expert (ACMX) or equivalent. \nCisco CCNP Enterprise. \nCompTIA Security+. \nCISSP. \nKey Success Factors\nThe ideal candidate is not simply a wireless controller administrator. This position requires an engineer capable of modernizing enterprise wireless infrastructure, integrating centralized management platforms, improving network resiliency, and implementing secure wireless access across distributed environments.\nThe successful engineer must understand how wireless controllers, Aruba Central, routing, authentication, cloud infrastructure, and enterprise monitoring work together to deliver reliable wireless connectivity.\nThe position requires strong technical leadership, advanced troubleshooting capabilities, and the ability to develop standardized implementation procedures that enable successful migrations and long-term operational support.\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 8, 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 $116,350.00 - $210,325.00The 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":11091,"description_truncated":false,"requirements":{"experience_years_min":12,"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":["Network Security","National Security","C4ISR","Engineering Services"],"lifecycle":[{"event":"open","at":"2026-10-11T05:28:41Z"}],"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":0}],"liveness":{"score":52,"band":"ok","label":"Likely open","p_open":1,"p_active":0.576,"p_room":0.9,"age_days":7,"expected_fill_days":20,"reasons":["conf:1","stale_co","velocity","win:mid","comp:brand"],"computed_at":"2026-10-15T05:46:00Z"},"pay":{"stated_usd_annual":210325,"is_top_pay":true},"html_url":"https://alion.io/job/leidos-principal-network-access-control-nac-engineer","json_url":"https://alion.io/job/leidos-principal-network-access-control-nac-engineer.json","meta":{"generated_at":"2026-10-15T18:13:56Z","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":27735,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-16T00:00:00Z"}},"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-principal-network-access-control-nac-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%2Fleidos-principal-network-access-control-nac-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%2Fleidos-principal-network-access-control-nac-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/leidos-principal-network-access-control-nac-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fleidos-principal-network-access-control-nac-engineer"}]}