[Remote] Unix System Administrator

Note: The job is a remote job and is open to candidates in USA. Prosum is seeking an experienced Senior UNIX Systems Administrator to join their technical support and infrastructure team. This role focuses on managing commercial UNIX platforms and resolving complex production issues for enterprise customers.ResponsibilitiesManage and resolve advanced UNIX infrastructure support cases for enterprise customersTroubleshoot operating system, storage, networking, clustering, and performance-related issuesImplement solutions directly within customer environmentsParticipate in an on-call rotation for critical customer escalationsMaintain and expand internal lab environments used for testing and issue reproductionDevelop and deliver periodic technical presentations and knowledge-sharing sessionsDocument troubleshooting procedures, best practices, and technical solutionsContinuously develop expertise across supported UNIX platforms and related technologiesSkillsStrong production experience with at least two of the following: IBM AIX, HP-UX, Oracle SolarisAdvanced shell scripting (ksh, sh, bash)System administration, performance tuning, and troubleshootingStorage management, including LVM and enterprise storage conceptsNetwork administration and TCP/IP troubleshootingNFS, CIFS/SMB, and directory service integrationSystem security, patching, and vulnerability remediationOperating system installation, upgrades, recovery, and disaster recovery proceduresCluster administration and high-availability technologiesExperience supporting multiple UNIX platforms in enterprise environmentsFamiliarity with Power Systems and SPARC hardwareExposure to legacy UNIX operating systems such as Tru64 or IRIXExperience with enterprise storage platforms and virtualization technologiesStrong communication and customer-facing troubleshooting skillsBenefitsMedical, dental, and vision coverageHealth Savings Account (HSA) with employer contributionsLife insurance401(k) with employer contributionsEmployee ownership opportunitiesFlexible work arrangementsUnlimited PTO and paid company holidaysProfessional development and training resourcesCompany OverviewProsum is an award-winning Staffing Solutions provider specializing in Contract, Contract-to-Hire, and Permanent placements in the Information Technology industry. It was founded in 1996, and is headquartered in El Segundo, California, USA, with a workforce of 201-500 employees. Its website is http://www.prosum.com.