Sr Network Security Engineer

Sr Network Security Engineer Location: Falls Church, VA, US Job ID: ATR 17722 Job Description Job Title: Sr Network Security Engineer Job Location: Falls Church, Virginia Eligibility/Clearance: Required to obtain a Public Trust Clearance Job Description: Advance your career while impacting our national security in cyber as a Sr. Network Security Engineer . Here, technologists have many paths to grow a meaningful career supporting cyber missions and operations across the federal government. Responsibilities (include but are not limited to): Lead the design, configuration, and deployment ofCisco Identity Services Engine (ISE)for network access control. Manage and implement network access policies using Cisco Secure Client and Microsoft native supplicants for both wired and wireless authentication. Test and deploy posture assessment for endpoints to ensure compliance with security policies. Troubleshoot and resolve network access issues related to 802.1X authentication and posture assessment. Configure and manage network devices to enforce access control policies. Work closely with the network and security teams to ensure seamless integration of network access control solutions. Develop and maintain detailed documentation of configurations, processes, and procedures. Provide training and knowledge transfer to internal teams as needed. Stay up-to-date with the latest industry trends and technologies related to network access control and security. Requirements: Minimum of 5 years of experience in network engineering and security, with a focus on network access control. Expertise in configuring and managing Cisco Identity Services Engine (ISE). Proficiency in usingCisco Secure ClientandMicrosoft native supplicants for 802.1X authentication. Experience with both wired and wireless network authentication and posture assessment. Strong understanding of network security principles and best practices. Excellent troubleshooting and problem-solving skills. Strong communication and documentation skills. Relevant certifications (e.g.,CCNP, CCIE, JNCIP, JNCIEor otherCisco andJunipersecurity certifications) are preferred. Desired Qualifications: Experience with other network access control solutions. Familiarity with endpoint security and compliance management. Knowledge of scripting and automation tools. Experience withRiverbed Profilerand analyzingNetFlowdata is a plus. Education: Bachelor's degree in Computer Science, Information Technology, or a related field. ATR is an Equal Opportunity Employer (EOE) who will provide equal employment opportunity to employees and applicants for employment without regard to race, ethnicity, religion, color, sex, pregnancy, national origin, age, veteran status, ancestry, sexual orientation, gender identity or expression, marital status, family structure, genetic information, or mental or physical disability First Name Required Last Name Required Email Address Required Phone Number CountryNoneAfghanistanÅland IslandsAlbaniaAlgeriaAmerican SamoaAndorraAngolaAnguillaAntarcticaAntigua and BarbudaArgentinaArmeniaArubaAustraliaAustriaAzerbaijanBahamasBahrainBangladeshBarbadosBelarusBelgiumBelizeBeninBermudaBhutanBoliviaBonaire, Sint Eustatius and SabaBosnia and HerzegovinaBotswanaBouvet IslandBrazilBritish Indian Ocean TerritoryBritish Virgin IslandsBruneiBulgariaBurkina FasoBurundiCabo VerdeCambodiaCameroonCanadaCayman IslandsCentral African RepublicChadChileChinaChristmas IslandCocos (Keeling) IslandsColombiaComorosCongoCongo-BrazzavilleCook IslandsCosta RicaCôte d'IvoireCroatiaCubaCuraçaoCyprusCzechiaDemocratic People's Republic of KoreaDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEritreaEstoniaEthiopiaFalkland IslandsFaroe IslandsFederated States of MicronesiaFijiFinlandFranceFrench GuianaFrench PolynesiaFrench Southern TerritoriesGabonGambiaGeorgiaGermanyGhanaGibraltarGreeceGreenlandGrenadaGuadeloupeGuamGuatemalaGuernseyGuineaGuinea-BissauGuyanaHaitiHeard Island and McDonald IslandsHondurasHong KongHungaryIcelandIndiaIndonesiaIraqIrelandIslamic Republic of IranIsle of ManIsraelItalyJamaicaJapanJerseyJordanKazakhstanKenyaKiribatiKuwaitKyrgyzstanLao People's Democratic RepublicLatviaLebanonLesothoLiberiaLibyaLiechtensteinLithuaniaLuxembourgMacaoMacedoniaMadagascarMalawiMalaysiaMaldivesMaliMaltaMarshall IslandsMartiniqueMauritaniaMauritiusMayotteMexicoMonacoMongoliaMontenegroMontserratMoroccoMozambiqueMyanmarNamibiaNauruNepalNetherlandsNew CaledoniaNew ZealandNicaraguaNigerNigeriaNiueNorfolk IslandNorthern Mariana IslandsNorwayOmanPakistanPalauPanamaPapua New GuineaParaguayPeruPhilippinesPitcairnPolandPortugalPuerto RicoQatarRepublic of KoreaRepublic of MoldovaReunionRomaniaRussiaRwandaSaint BarthelemySaint Helena, Ascension and Tristan da CunhaSaint Kitts and NevisSaint LuciaSaint MartinSaint Pierre and MiquelonSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSaudi ArabiaSenegalSerbiaSeychellesSierra LeoneSingaporeSint Maarten (Dutch part)SlovakiaSloveniaSolomon IslandsSomaliaSouth AfricaSouth Georgia and the South Sandwich IslandsSouth SudanSpainSri LankaState of PalestineSudanSurinameSvalbard and Jan MayenSwazilandSwedenSwitzerlandSyriaTaiwanTajikistanThailandTimor-LesteTogoTokelauTongaTrinidad and TobagoTunisiaTurkeyTurkmenistanTurks and Caicos IslandsTuvaluU.S. Virgin IslandsUgandaUkraineUnited Arab EmiratesUnited KingdomUnited Republic of TanzaniaUnited StatesUnited States Minor Outlying IslandsUruguayUzbekistanVanuatuVaticanVenezuelaVietnamWallis and FutunaWestern SaharaYemenZambiaZimbabwe State/ProvinceNone City ZIP/Postal Code Resume Choose File... 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Created: 2026-03-10