Arena Technical Resources
Linux SME
Location: Bethesda, MD, US
Job ID: ATR 17586
Job Description
Job Title: Linux SME
Location: Bethesda, MD, ICC-B – Onsite, SCIF Environment
Eligibility: TS/SCI with CI Polygraph (Full Scope Poly preferred)
Contract Type: Contingent Upon Award, this will be available in the next
few weeks.
Job Description:
We are seeking an experienced Linux Subject Matter Expert (SME) to
provide advanced systems engineering and operational support for
Dedicated Cross Domain Infrastructure within a secure Defense
Intelligence Agency (DIA) environment. This role is embedded with our
Cross Domain Solutions (CDS) team and is responsible for maintaining,
hardening, troubleshooting, and optimizing Linux-based systems across
multiple domains and mission enclaves.
The ideal candidate will have a deep understanding ofRed Hat Enterprise
Linux (RHEL),system hardening(STIG), cross domainsecurity
architectures, and theaccreditation processesnecessary to support Top
Secret/Sensitive Compartmented Information (TS/SCI) systems.
Key Responsibilities:
Lead system engineering, patching, configuration, and lifecycle
maintenance of RHEL/CentOS/OracleLinux systemssupporting CDS
environments.
Implement and maintain DISA STIG-compliant baselines using
automationtools (e.g.,Ansible,SCAP,Puppet).
Collaborate with CDS engineers, Information Assurance personnel, and
enclave leads to meetATO/RMF compliance.
Troubleshoot kernel-level issues, performance bottlenecks, and
cross-domain interface stability.
Provide SME-level support for SE Linux, LDAP/Kerberos, and auditing
solutions (e.g., syslog, Splunk forwarders).
Manage OS provisioning, virtual infrastructure (e.g., VMware or
KVM), and baseline image creation for cross-domain enclaves.
Assist with developing and maintaining infrastructure-as-code
configurations and custom scripts (Bash, Python).
Serve as Tier III escalation for complex OS issues affecting CDS
reliability or availability.
Support enclave isolation and guard-side interface requirements
under strict security policies.
Document engineering decisions, operational procedures, and system
configurations for cross-team knowledge sharing and accreditation
packages.
Required Qualifications:
U.S. Citizen with activeTS/SCI clearance and CI Polygraph(or
ability to obtain).
-8+ years of experience administering Linux systemsin a secure,
mission-critical environment.
3+ years supporting cross-domain or multi-enclave environments (CDS,
Garrison, SMART.NeXT, CDSSF).
Advanced knowledge ofRHEL 7/8/9, includingsystem hardeningand
kernel-level tuning.
Experience withautomation frameworksandscripting languages
(Ansible, Bash, Python).
Familiarity withRMF/ATO processesandaudit log management.
Strong understanding ofnetworking(TCP/IP, firewalls, VLANs, DNS)
as it relates toLinux systems.
Desired Qualifications:
DoD 8570 IAT Level II or III certification (Security+ CE, CASP+,
CISSP).
-Red Hat Certified Engineer (RHCE) or similar Linux certification.
Familiarity with CDS guard technologies (Radiant Mercury, Data
Diode, Garrison, etc.).
Experience with hypervisors and virtual infrastructure supporting
isolated environments.
Knowledge of Zero Trust, enclave segmentation, and compartmentalized
architectures.
First Name
Required
Last Name
Required
Email Address
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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
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Location: Bethesda, MD, US
Job ID: ATR 17586
Job Description
Job Title: Linux SME
Location: Bethesda, MD, ICC-B – Onsite, SCIF Environment
Eligibility: TS/SCI with CI Polygraph (Full Scope Poly preferred)
Contract Type: Contingent Upon Award, this will be available in the next
few weeks.
Job Description:
We are seeking an experienced Linux Subject Matter Expert (SME) to
provide advanced systems engineering and operational support for
Dedicated Cross Domain Infrastructure within a secure Defense
Intelligence Agency (DIA) environment. This role is embedded with our
Cross Domain Solutions (CDS) team and is responsible for maintaining,
hardening, troubleshooting, and optimizing Linux-based systems across
multiple domains and mission enclaves.
The ideal candidate will have a deep understanding ofRed Hat Enterprise
Linux (RHEL),system hardening(STIG), cross domainsecurity
architectures, and theaccreditation processesnecessary to support Top
Secret/Sensitive Compartmented Information (TS/SCI) systems.
Key Responsibilities:
Lead system engineering, patching, configuration, and lifecycle
maintenance of RHEL/CentOS/OracleLinux systemssupporting CDS
environments.
Implement and maintain DISA STIG-compliant baselines using
automationtools (e.g.,Ansible,SCAP,Puppet).
Collaborate with CDS engineers, Information Assurance personnel, and
enclave leads to meetATO/RMF compliance.
Troubleshoot kernel-level issues, performance bottlenecks, and
cross-domain interface stability.
Provide SME-level support for SE Linux, LDAP/Kerberos, and auditing
solutions (e.g., syslog, Splunk forwarders).
Manage OS provisioning, virtual infrastructure (e.g., VMware or
KVM), and baseline image creation for cross-domain enclaves.
Assist with developing and maintaining infrastructure-as-code
configurations and custom scripts (Bash, Python).
Serve as Tier III escalation for complex OS issues affecting CDS
reliability or availability.
Support enclave isolation and guard-side interface requirements
under strict security policies.
Document engineering decisions, operational procedures, and system
configurations for cross-team knowledge sharing and accreditation
packages.
Required Qualifications:
U.S. Citizen with activeTS/SCI clearance and CI Polygraph(or
ability to obtain).
-8+ years of experience administering Linux systemsin a secure,
mission-critical environment.
3+ years supporting cross-domain or multi-enclave environments (CDS,
Garrison, SMART.NeXT, CDSSF).
Advanced knowledge ofRHEL 7/8/9, includingsystem hardeningand
kernel-level tuning.
Experience withautomation frameworksandscripting languages
(Ansible, Bash, Python).
Familiarity withRMF/ATO processesandaudit log management.
Strong understanding ofnetworking(TCP/IP, firewalls, VLANs, DNS)
as it relates toLinux systems.
Desired Qualifications:
DoD 8570 IAT Level II or III certification (Security+ CE, CASP+,
CISSP).
-Red Hat Certified Engineer (RHCE) or similar Linux certification.
Familiarity with CDS guard technologies (Radiant Mercury, Data
Diode, Garrison, etc.).
Experience with hypervisors and virtual infrastructure supporting
isolated environments.
Knowledge of Zero Trust, enclave segmentation, and compartmentalized
architectures.
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...
Required, maximum file size is 512KB, allowed file types are doc, docx, pdf, odf, and txt
Message
Success!
Your application was successfully sent!