LinuxONE Hypervisor (zVM) Infrastructure Solutions Engineer- VP

The z/VM Systems Programmer on the LinuxONE mainframe platform is responsible for installing, configuring, securing, and maintaining z/VM environments to ensure high availability, performance, and reliability for enterprise workloads. This role includes managing virtualization resources, automating system operations, troubleshooting complex incidents, and collaborating with infrastructure, security, and application teams to support scalable Linux-based services. By Joining Citi, you will become part of a global organisation whose mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress.

Team/Role Overview The team provides end-to-end engineering support for LinuxONE environments, combining core platform work on z/VM, Red Hat Enterprise Linux (RHEL), and integrated infrastructure services from IBM and Velocity vendors. The organization manages z/VM across more than 200 LPARs and supports over 8,000 hosted Linux instances, delivering secure, resilient, and high-performing enterprise operations. What you’ll do Operate and optimize z/VM environments on LinuxONE by handling daily system health checks, capacity trends, performance tuning, and incident prevention.

Manage lifecycle activities for z/VM, RHEL, and supporting IBM/Velocity software, including installs, upgrades, patching, and configuration hardening. Administer large-scale virtualization estates (200+ LPARs and 8,000+ Linux guests) with a