Technology Support III, Mainframe

What you'll do

• Support end-to-end application and infrastructure service delivery to ensure successful business operations.
• Execute policies and procedures to maintain operational stability and availability in a 24x7 production environment.
• Monitor production environments for anomalies and utilize standard observability tools to address issues.
• Participate in incident, problem, and change management for full-stack technology systems and infrastructure.
• Administer and troubleshoot Mainframe-related components to support continuous operational health and performance.
• Use enterprise-authorized AI capabilities to speed up incident triage and trend analysis from operational signals.
• Review and validate AI-assisted incident recommendations before taking action to ensure security and operational compliance.
• Communicate issues and solutions to business and technology stakeholders from incident resolution through service restoration.

What we're looking for

• Formal training or certification on technology support concepts and 3+ years of applied experience.
• 3+ years of experience working in or supporting IBM z-Series environments.
• Understanding of infrastructure architecture including servers, storage, network, database, and application components.
• Working knowledge of replication technologies such as IBM CSM and GDPS.
• Experience supporting z-Series and Hardware Management Console (HMC) administration, including firmware and microcode upgrades.
• Working knowledge of security standards including SSH protocol, transaction-based systems, IMS, CICS, DB2, and WebSphere.
• Experience using ServiceNow for ticket and resolution management, with familiarity in incident, problem, and change management processes.
• Demonstrated experience using enterprise-authorized AI capabilities within the work environment to support production support workflows with strong validation habits.