SAIC is seeking a UNIX Administrator with hands-on experience in Cohesity backup and recovery solutions to join our team. The ideal candidate will have strong UNIX/Linux administration expertise, solid troubleshooting capabilities, and a background in supporting enterprise backup environments using Cohesity and Veritas. Key Responsibilities · Manage, configure, and maintain UNIX/Linux systems (RHEL, CentOS, Ubuntu, AIX, or Solaris depending on environment). · Perform routine OS patching, kernel upgrades, system tuning, and security hardening. · Monitor system performance and troubleshoot OS-level issues across compute environments. · Manage user accounts, file systems, NFS, packages, permissions, and system services. · Support shell scripting for automation and maintenance tasks (Bash, KSH, Python optional). · Administer and support Cohesity DataProtect clusters for enterprise backup operations. · Configure protection jobs, policies, storage domains, and replication workflows. · Monitor backup performance, job failures, capacity usage, and SLA compliance. · Perform restores for files, VMs, databases, and workloads per business requests. · Troubleshoot backup/restore issues and coordinate with vendors for escalation. · Maintain documentation for backup processes, runbooks, and configuration baselines. · Provide second- and third-level support for UNIX/Linux and Cohesity platforms. · Collaborate with application teams, database teams, and storage/VMware admins for cross-functional support. · Participate in on-call rotation for critical system and backup incidents. · Maintain configuration management standards and adhere to IT security policies. · Assist in planning and executing disaster recovery (DR) tests leveraging Cohesity. · Develop automation scripts to streamline system maintenance and backup workflows. · Identify gaps in resiliency, monitoring, and performance tuning and recommend improvements. · Support migration projects, OS upgrades, Cohesity expansion, and infrastructure modernization efforts.