Top Tech Jobs & Startup Jobs in Chicago, IL

Design, implement, and manage RACF-based logical security across z/OS environments. Administer user/group and resource profiles, enforce least-privilege for datasets and subsystems, perform access reviews and compliance audits, analyze SMF/RACF logs and SIEM alerts, investigate incidents, integrate mainframe security with enterprise IAM/SSO/MFA, and support encryption and key management.

Lead design and delivery of complex, integrated technology solutions (cloud, infrastructure, applications, data & AI). Own solution risk, cost, profitability, and deliverability for large engagements, work with CxO-level clients, support RFP/proposal development, costing models, contract negotiation, and engagement handover. Spend 50–70% time in face-to-face customer interactions and travel up to 50%.

Lead and coach regional administrative leaders to standardize global GA processes, enforce governance and controls, drive operational excellence and transformation, sponsor Copilot-enabled digitization, and partner with senior stakeholders to ensure consistent, high-quality executive support worldwide.

Administer and optimize IBM z/VM virtualization and Linux on Z platforms (RHEL/SUSE/Ubuntu). Provision and manage VMs, perform maintenance (RSUs, PTFs, APARs), HMC/IPL ops, troubleshoot L2/L3 production issues, automate tasks with scripting/Ansible, support CI/CD and container integration, enforce RACF and Linux hardening, and maintain documentation and ITIL/ServiceNow change processes.