Systems Administrator - Technology Operations

Walmart Global Tech

Job Details

Location

chennai

Experience

1-3

Salary

10 LPA

Last Date

07/05/2026

Job Description

Manage day-to-day control room activities by continuously monitoring system alerts, addressing batch job failures, and resolving incidents in line with defined operational procedures. Handle scheduling operations using Control-M, including pausing, releasing, and restarting jobs as required. Oversee batch workflows to ensure timely completion of critical processes and escalate any deviations impacting service level agreements. Work closely with z/OS environments by reviewing system logs, performing initial issue analysis, and coordinating with advanced support teams when deeper investigation is needed. Execute key operational tasks such as system restarts, maintenance activities, and IPL processes to maintain system stability. Track system performance using monitoring tools and promptly communicate any irregularities to senior team members. Manage incident records and service requests through ServiceNow, ensuring all updates are accurate and completed within shift timelines. Provide operational support to data center activities, including resolving batch processing issues and handling peripheral concerns like printer failures. Assist during critical scenarios such as data center outages and recovery events. Respond to user and client queries through multiple channels such as calls, emails, and collaboration tools, ensuring adherence to response and resolution timelines. Follow escalation protocols diligently and maintain clear, well-documented communication, especially during shift transitions.

Key Responsibilities

The Systems Administrator in Technology Operations plays a key role in maintaining smooth day-to-day control room functions within a mainframe environment. This includes overseeing batch job execution, monitoring system performance, and handling incidents to ensure uninterrupted business operations. The role focuses on maintaining system reliability, supporting time-critical processes, and ensuring service level targets are consistently met through timely escalation and resolution of issues. Working in coordination with senior team members and subject matter experts, the associate is responsible for initial troubleshooting, executing standard operational tasks, and providing prompt assistance to internal stakeholders. The position requires a proactive approach to monitoring, effective issue management, and strong communication to ensure seamless operational support.

Required Skills

Control-M activitiesbatch flowsz/OS systemsServiceNowEDIM

Eligibility Criteria

1–3 years of experience in technology operations, control room, or system administration.

Interview Preparation Guide

šŸ”¹ Mainframe & z/OS Basics z/OS architecture basics JES2 / JES3 concepts TSO/ISPF navigation Dataset types (PS, PDS, VSAM basics) SDSF commands (job monitoring, logs) šŸ”¹ Batch Processing & Scheduling Job lifecycle (submission → execution → completion) Understanding abends (S0C7, S322, etc.) Restarting failed jobs (checkpoint/restart concepts) Dependencies & job flow logic SLA handling for critical batch jobs šŸ”¹ Control-M (Very Important) Control-M fundamentals Job scheduling & conditions Holding, releasing, rerunning jobs Handling failed jobs & alerts Monitoring job status & logs šŸ”¹ Incident & Service Management ServiceNow usage Incident lifecycle (open → assign → resolve → close) Priority & severity levels SLA concepts (response vs resolution time) Change requests & RITM basics šŸ”¹ Monitoring & Alerts System health monitoring concepts Tools like Chronos (or similar) Alert handling & escalation matrix Identifying critical vs non-critical alerts šŸ”¹ Operational Activities IPL (Initial Program Load) basics Bounce activities (restart services/apps) Maintenance window activities Data center operations basics Printer & peripheral issue handling

Interview Process

1st r and 2nd round : Technical Interview 3rd round : Hiring manager round 4th round : HR round
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