{"schemaVersion":"jobsearcher.job.v1","id":"9b52c8eaab0966de5782bbfd","url":"https://jobsearcher.com/jobs/9b52c8eaab0966de5782bbfd","canonicalUrl":"https://jobsearcher.com/jobs/9b52c8eaab0966de5782bbfd","title":"Lead Unix/Linux Security Engineer","description":"Lead Unix/Linux Security Engineer (Remote)\nLocation: Remote (U.S.)\nPay Rate: $75-$80/hr\nPosition Summary\nOur client is seeking a Lead Unix/Linux Security Engineer to support and enhance enterprise Linux authentication, identity integration, and operating system security across a large-scale environment. This hands-on engineering role is responsible for configuring, troubleshooting, and maintaining secure authentication services while partnering with infrastructure, security, and networking teams to ensure secure and reliable access to critical systems.\nThe ideal candidate has extensive experience with SSSD, Kerberos, LDAP, Active Directory integration, and Linux security hardening, along with a strong background supporting enterprise Linux environments.\nKey Responsibilities\nConfigure, maintain, and troubleshoot enterprise Linux authentication services using SSSD.\nIntegrate Linux systems with Active Directory, LDAP, and Kerberos.\nDiagnose and resolve authentication failures, SSSD caching issues, domain join problems, and cross-realm trust issues.\nConfigure and maintain Linux PAM stack and sudo policies.\nImplement Linux security hardening and secure access best practices.\nCoordinate with firewall and network teams to establish secure communication between Unix/Linux servers.\nCreate, modify, and manage Linux groups and permissions supporting enterprise applications.\nTroubleshoot production issues related to password expiration, access permissions, group privileges, and authentication.\nSupport endpoint privileged management solutions and enterprise identity integrations.\nDevelop and maintain automation using Bash, Python, Ansible, or Puppet.\nParticipate in production change windows outside of normal business hours as needed.\nRequired Qualifications\n8+ years of experience as a Unix/Linux Systems Engineer, Linux Security Engineer, or similar role.\nStrong hands-on experience with System Security Services Daemon (SSSD).\nExperience configuring and supporting:\nKerberos\nLDAP\nActive Directory integration\nAdvanced experience administering:\nRed Hat Enterprise Linux (RHEL)\nCentOS\nUbuntu\nStrong knowledge of:\nLinux authentication\nPAM configuration\nsudo policy management\nEnterprise identity management\nExperience troubleshooting:\nAuthentication failures\nPassword expiration\nSSSD caching\nDomain joins\nCross-realm trust issues\nExperience implementing Linux hardening and secure access models.\nExperience coordinating with firewall teams on secure Linux communications.\nAutomation experience using Bash, Python, Ansible, or Puppet.\nPreferred Qualifications\nExperience supporting large enterprise Linux environments.\nBackground in the financial services or insurance industry.\nFamiliarity with Endpoint Privileged Management (EPM) solutions.\nPrevious USAA experience is a plus, but not required.\nTop Skills\nSSSD (System Security Services Daemon) – Expert-level experience\nKerberos, LDAP, and Active Directory Integration – Advanced experience\nEnterprise Linux Administration (RHEL/CentOS/Ubuntu) – Advanced experience\nPay: $75.00 - $80.00 per hour\nWork Location: Remote","company":"Strategic Staffing Solutions","rawCompany":"strategic staffing solutions","city":"Remote","state":"OR","isRemote":false,"isActive":false,"createdAt":"2026-08-05T13:26:39.556Z","occupations":[{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1299.05","title":"Information Security Engineers","slug":"information-security-engineers"},{"code":"15-1244.00","title":"Network and Computer Systems Administrators","slug":"network-and-computer-systems-administrators"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541690","title":"Other Scientific and Technical Consulting Services","slug":"other-scientific-and-technical-consulting-services"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Lead Unix/Linux Security Engineer","description":"Lead Unix/Linux Security Engineer (Remote)\nLocation: Remote (U.S.)\nPay Rate: $75-$80/hr\nPosition Summary\nOur client is seeking a Lead Unix/Linux Security Engineer to support and enhance enterprise Linux authentication, identity integration, and operating system security across a large-scale environment. This hands-on engineering role is responsible for configuring, troubleshooting, and maintaining secure authentication services while partnering with infrastructure, security, and networking teams to ensure secure and reliable access to critical systems.\nThe ideal candidate has extensive experience with SSSD, Kerberos, LDAP, Active Directory integration, and Linux security hardening, along with a strong background supporting enterprise Linux environments.\nKey Responsibilities\nConfigure, maintain, and troubleshoot enterprise Linux authentication services using SSSD.\nIntegrate Linux systems with Active Directory, LDAP, and Kerberos.\nDiagnose and resolve authentication failures, SSSD caching issues, domain join problems, and cross-realm trust issues.\nConfigure and maintain Linux PAM stack and sudo policies.\nImplement Linux security hardening and secure access best practices.\nCoordinate with firewall and network teams to establish secure communication between Unix/Linux servers.\nCreate, modify, and manage Linux groups and permissions supporting enterprise applications.\nTroubleshoot production issues related to password expiration, access permissions, group privileges, and authentication.\nSupport endpoint privileged management solutions and enterprise identity integrations.\nDevelop and maintain automation using Bash, Python, Ansible, or Puppet.\nParticipate in production change windows outside of normal business hours as needed.\nRequired Qualifications\n8+ years of experience as a Unix/Linux Systems Engineer, Linux Security Engineer, or similar role.\nStrong hands-on experience with System Security Services Daemon (SSSD).\nExperience configuring and supporting:\nKerberos\nLDAP\nActive Directory integration\nAdvanced experience administering:\nRed Hat Enterprise Linux (RHEL)\nCentOS\nUbuntu\nStrong knowledge of:\nLinux authentication\nPAM configuration\nsudo policy management\nEnterprise identity management\nExperience troubleshooting:\nAuthentication failures\nPassword expiration\nSSSD caching\nDomain joins\nCross-realm trust issues\nExperience implementing Linux hardening and secure access models.\nExperience coordinating with firewall teams on secure Linux communications.\nAutomation experience using Bash, Python, Ansible, or Puppet.\nPreferred Qualifications\nExperience supporting large enterprise Linux environments.\nBackground in the financial services or insurance industry.\nFamiliarity with Endpoint Privileged Management (EPM) solutions.\nPrevious USAA experience is a plus, but not required.\nTop Skills\nSSSD (System Security Services Daemon) – Expert-level experience\nKerberos, LDAP, and Active Directory Integration – Advanced experience\nEnterprise Linux Administration (RHEL/CentOS/Ubuntu) – Advanced experience\nPay: $75.00 - $80.00 per hour\nWork Location: Remote","datePosted":"2026-08-05T13:26:39.556Z","dateModified":"2026-08-05T13:26:39.556Z","hiringOrganization":{"@type":"Organization","name":"Strategic Staffing Solutions","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Remote","addressRegion":"OR","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"9b52c8eaab0966de5782bbfd"},"url":"https://jobsearcher.com/jobs/9b52c8eaab0966de5782bbfd"}}