Senior Linux administrator responsible for managing UNIX-based physical and virtual infrastructure across complex heterogeneous environments at Qualcomm's San Diego headquarters. The role requires hands-on expertise in Red Hat Enterprise Linux, Ubuntu, and SUSE, with demonstrated proficiency in deploying and configuring enterprise hardware (HP, Dell, Super Micro servers), storage technologies (SAN, RAID), and containerization platforms.… Key responsibilities include datacenter operations, server patching and package management, clustering (Veritas, Pacemaker), infrastructure automation via Ansible, and serving as an escalation point for technical issues affecting production systems. This is a full-time onsite position (5 days/week) requiring 3+ years of IT experience with a Bachelor's degree, or 5+ years without one.