✦ Luna Orbit — Cybersecurity

Senior Linux Systems Engineer

at Kentro

📍 Tampa, FL, US Onsite Posted April 09, 2026
Type Not Specified
Experience senior
Exp. Years 8+ years of experience
Education Bachelors in Computer Engineering or related. Or equivalent practical experience with AIT Certification
Category Cybersecurity

Kentro is hiring a Senior Linux Systems Engineer to support USSOCOM’s Zero Trust architecture with a focus on ICAM capabilities. The role designs, implements, and maintains secure Linux-based environments while enforcing least-privilege and continuous authentication.

  • Design, build, and maintain secure Linux environments (RHEL, Rocky) supporting Zero Trust ICAM initiatives
  • Engineer and integrate ICAM solutions (IdP, MFA, PKI, LDAP/AD integration)
  • Implement Zero Trust principles including least privilege, micro-segmentation, and continuous authentication
  • Harden systems to DISA STIGs, NIST 800-53, and DoD security requirements
  • Automate configuration and deployment using Ansible, Bash, or Python and provide Tier III troubleshooting

This role centers on secure Linux engineering (RHEL/rocky) and Zero Trust implementation through ICAM technologies such as IdP, MFA, PKI, and LDAP/Active Directory integration. Responsibilities include hardening to DISA STIGs and NIST 800-53, applying RMF processes, automating with Ansible/Bash/Python, and responding to vulnerabilities using tools like ACAS and SCAP.

The ideal candidate is a senior-level Linux systems engineer with 8+ years of Linux systems engineering/administration experience, including RHEL-based system hardening and patch management. They bring strong ICAM and Zero Trust experience—implementing identity services (IdP, MFA, PKI, LDAP/Active Directory integration) and applying DISA STIGs, NIST 800-53, and RMF practices.

8+ years of experience in Linux systems engineering/administrationDoD 8570 IAT Level II certification (Security+ CE or higher)RHEL-based systemssystem hardeningpatch managementICAM technologies (Active DirectoryLDAPPKIMFA solutions)Hands-on implementing Zero Trust conceptsidentity protocols (SAMLOAuth 2.0OpenID ConnectKerberos)DISA STIGsNIST 800-53RMF processesAnsibleBashPythonACASSCAPTier III support and troubleshooting
Red Hat Enterprise Linux (RHEL)Rocky LinuxAnsibleBashPythonDISA STIGsNIST 800-53RMFACASSCAPActive DirectoryLDAPPKIMFASAMLOAuth 2.0OpenID ConnectKerberos
Designbuildand maintain secure Linux environmentsRHELRockysystem hardeningpatch managementZero TrustICAMIdPMFAPKILDAP/AD integrationActive Directoryleast privilegemicro-segmentationcontinuous authenticationDISA STIGsNIST 800-53DoD security requirementsidentity federationSSOSAMLOAuth 2.0OpenID ConnectKerberosAnsibleBashPythonRMFRisk Management Framework (RMF)ACASSCAPTier III supporttroubleshooting
Designbuildand maintain secure Linux environmentsRHELRockysystem hardeningpatch managementZero TrustICAMIdentity and Access Management (ICAM)IdPMFAPKILDAP/AD integrationActive Directoryleast privilegemicro-segmentationcontinuous authenticationDISA STIGsNIST 800-53DoD security requirementsidentity federationaccess control mechanismsSSOSAMLOAuthOpenID ConnectKerberosautomate system configurationAnsibleBashPythonsystem performance monitoringsecurity posture monitoringaudit logsincident responsevulnerability managementRMF processesACASSCAPTier III supporttroubleshootingLinux systems engineering/administration
communicationcross-functional collaborationincident and vulnerability response coordinationtroubleshooting focusteamworkdocumentation

Required

CompTIA Security+ (Security+ CE)
Industry Defense
Job Function Build and secure Linux systems that deliver ICAM-based, Zero Trust identity-driven access.
Role Subtype Linux Sysadmin
Tech Domains Linux, Cybersecurity, Active Directory
Senior Linux Systems EngineerLinux Systems EngineerLinux systems engineering/administrationRHELRed Hat Enterprise Linux (RHEL)RockyRocky LinuxZero TrustICAMIdentity and Access Management (ICAM)IdPMFAPKILDAPActive Directoryleast privilegemicro-segmentationcontinuous authenticationDISA STIGsNIST 800-53DoD security requirementsidentity federationSSOSAMLOAuthOAuth 2.0OpenID ConnectKerberosAnsibleBashPythonRMFRisk Management Framework (RMF)ACASSCAPTier III supporttroubleshooting

Must have 8+ years of experience in Linux systems engineering/administration, Must have DoD 8570 IAT Level II certification (Security+ CE or higher), Must have strong experience with RHEL-based systems and system hardening/patch management, Must demonstrate ICAM/Zero Trust experience including Active Directory, LDAP, PKI, and MFA

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