SYSTEMS ADMINISTRATOR, TECHNOLOGY OPERATIONS
🇨🇦Walmart
Job Description
Position Summary... The Systems Administrator – Technology Operations is responsible for supporting day-to-day control room operations, including batch processing, system monitoring, and incident management within a mainframe environment. This role ensures system stability, supports critical business processes, and escalates issues appropriately to maintain SLA compliance. The associate works closely with senior team members and SMEs to troubleshoot issues, execute operational procedures, and provide timely support to internal customers. What you'll do... About the team Our team is dedicated to driving innovation and operational excellence within Walmart Global Tech. Associates on shift are responsible for ensuring that our critical batch flows run successfully and are completed before their Service Level Agreements (SLAs). Team members monitor over 250,000 jobs daily, working collaboratively to ensure all restarts and validations are performed with 100% accuracy prior to any restart. Additionally, associates maintain the stability and health of mainframe systems, implementing maintenance and upgrades as needed. ServiceNow is utilized for incident logging and tracking, supporting efficient resolution and documentation of operational issues What You’ll Do Perform daily control room operations, including monitoring alerts, handling batch job abends, and managing incidents in accordance with SOPs. Execute Control-M activities such as holding, releasing, and restarting jobs. Monitor batch flows and escalate issues to ensure SLAs for critical processes are met. Monitor z/OS systems , review logs, and perform initial troubleshooting; engage next-level support when required. Execute operational procedures including IPLs (Initial Program Loads) , maintenance implementations, and task restarts (bounce activities). Monitor system health using tools such as Chronos and report issues to senior leads or SMEs as needed. Create, update, and manage incident tickets and RITMs in ServiceNow , ensuring all tickets are accurately updated before shift end. Provide support to data centers (DCs) , including troubleshooting batch processing issues and resolving printer-related problems. Support and facilitate EDIM (Data Center Power Outage activities) and related operational events. Handle customer support requests via phone queue, email, and chat platforms (Zoom, Teams, Slack) while meeting response SLAs. Follow established escalation procedures and SOPs for issue management and resolution. Maintain proper documentation and communicate issues effectively during shift handovers. What You’ll bring 1–3 years of experience in technology operations, control room, or system administration . Basic knowledge of mainframe environments (z/OS) and batch processing concepts. Experience with job scheduling tools (e.g., Control-M) . Familiarity with ServiceNow or similar ticketing systems. Strong problem-solving skills and attention to detail. Ability to work in a 24x7 shift-based e
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Walmart