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Systems Administrator (Solaris/Oracle) with Security Clearance

CosolutionsReston, VAApril 12th, 2026
Position Description: Seeking an experienced Systems Administrator to join our team supporting the U.S. Intelligence Community. This role focuses on managing complex enterprise environments built on Oracle Solaris infrastructure in support of mission-critical systems that deliver strategic advantage to warfighters, defense planners, and policymakers. As part of the contract, this position will contribute to the sustainment and enhancement of mission applications that enable global operations. You'll be part of a high-performing team with a long history of excellence supporting national defense and intelligence programs. In this role, you will be responsible for maintaining, configuring, and supporting Oracle Solaris-based infrastructure and hardware across a secure enterprise environment. Responsibilities:Administering Oracle Solaris (versions 10, 11.2, 11.3, 11.4) systemsManaging Sun/Oracle SPARC and x86 hardware, switches, and storageConfiguring and maintaining Sun/Oracle switchesBuilding and managing IPS repositories and LDOMs (Logical Domains)Performing disk management, including physical, ZFS, and virtual disks under LDOMExecuting backup and recovery operations, including ZFS snapshots, BE Admin, and LDOM exportsManaging Solaris antivirus and IPF (Internet Protocol Filter) configurationsAdministering and configuring Trusted Solaris environmentsPerforming disaster recovery and recovering systems from hardware failuresSupporting overall Solaris system performance, security hardening, and patching Required Qualifications:A Bachelor's degree in an area applicable to the position with 8+ years of relevant experience OR a Master's degree with 6 years of relevant experience; an additional 4 years of experience maybe considered in lieu of a degree requirementActive TS/SCI or SCI eligibility and active polygraph or ability to obtain a polygraphSecurity+ or other IAT II/III level certification that is currently active (DoD 8570 compliance)Extensive experience with Sun/Oracle hardware, including SPARC and x86 servers, switches, and storageStrong knowledge of Solaris OS, specifically versions 10, 11.2, 11.3, and 11.4Proven expertise in: o Sun/Oracle switch configuration o Building and managing LDOMs o Managing IPS repositories o ZFS and disk management (physical and virtual) o Backup and recovery, including ZFS snapshots, BE Admin, and LDOM exports o Trusted Solaris configuration and management o Solaris antivirus and IPF configuration Desired Qualifications:Experience with Windows Active Directory for user, group, and device managementKnowledge of PBIS (PowerBroker Identity Services) for Solaris AD integrationFamiliarity with Nutanix VM managementExposure to Oracle Linux, Red Hat Enterprise Linux (RHEL), and CentOSExperience with Oracle Database, including RAC (Real Application Clusters), ASM (Automatic Storage Management), and RMAN (Recovery Manager) for backups and recovery About Us: At CoSolutions we are proud to say we prioritize our employees as well as strive to create a comfortable, welcoming, and productive work environment for all. We support growth opportunity, career development, and always have open ears to new possibilities and solutions! If you are looking for a new rewarding opportunity we would love to hear from you. CoSolutions is an equal opportunity employer and does not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital/parental status, pregnancy/childbirth or related conditions, physical or mental disability, genetic information, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law. It is our firm intent to support equal employment opportunity and affirmative action in keeping with applicable federal, state, and local laws and regulations.