Muppudathi Murugan IT Manager

Information Technology Service Engineer

Walmart Global Tech India

Jul 2023 - Current (2 years 10 months)

Team Leadership: Manage a 15-member support team handling 500+ monthly incidents, maintaining 99.9% SLA for critical systems. Process Optimization: Reduced MTTR from 4.2h to 2.1h via workflow automation and tiered escalation paths. Incident Management: Spearheaded P1/P2 resolution using ITIL frameworks, cutting recurring incidents by 40%. Training & Development: Launched weekly upskilling programs, improving first-call resolution from 65% to 82%. Metrics & Reporting: Designed executive dashboards for real-time visibility into support KPIs (CSAT: 92%).

Technology Service Engineer III

Walmart Global Tech

Jul 2023 - Apr 2025 (1 year 10 months)

Led IT operations and support across enterprise platforms ensuring high availability and performance.Managed application monitoring, incident response, and RCA to minimize service disruptions.Collaborated with network, cloud, and product teams to maintain secure infrastructure and governance compliance.Implemented preventive maintenance schedules improving SLA adherence by 25%.Documented SOPs, escalation workflows, and service dashboards for leadership reporting.

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Senior Administrator

Walmart (via Intelliswift)

Aug 2021 - Jun 2023 (1 year 11 months)

Oversaw IT support operations and guided a team responsible for infrastructure and application stability.Administered Active Directory, patch management, endpoint security, and access provisioning.Conducted user onboarding/offboarding and maintained system inventory and software licensing.Coordinated system upgrades and handled vendor engagement for hardware replacements.

Senior Hadoop Administrator

Intelliswift Software

Feb 2021 - Jul 2023 (2 years 6 months)

- Responsible for the implementation, support, and continuous optimization of the Enterprise Hadoop environment, ensuring seamless data processing and storage. - Administered and supported both Windows and Linux operating systems in an enterprise setting, managing large-scale, mission-critical environments. - Collaborated with data delivery teams to set up new Hadoop and Linux users, configure Kerberos principals, and test HDFS, Hive, Pig, and MapReduce access for users. - Monitored the health, connectivity, and performance of the Hadoop cluster, ensuring stable and efficient operations. - Managed and analyzed Hadoop log files, identifying potential issues and providing solutions to optimize cluster performance. - Hands-on experience with G

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Senior Operations Engineer

Onmobile Global Ltd

Apr 2017 - Feb 2021 (3 years 11 months)

Managed 24/7 IT support operations ensuring uninterrupted production services and platform stability.Performed server monitoring, troubleshooting, and RCA for critical application issues.Collaborated with multiple teams for release deployments and post-production validations.Maintained SLA and compliance standards through improved process documentation.

Operations Engineer

Onmobile Global Limited

Apr 2017 - Feb 2021 (3 years 11 months)

- Configured and managed applications and services across global servers, ensuring seamless operations. - Maintained 99% uptime and troubleshot issues related to platform products, enhancing reliability. - Installed and set up key web servers (Apache, Tomcat) and database servers (MySQL) for robust application performance. - Administered and maintained Red Hat HA Cluster on RHEL and CentOS, optimizing high availability across different versions. - Configured system processes such as fstab, crontab jobs, and daemon processes for efficient system operations. - Monitored server health and performance metrics, including server availability, disk space, processor utilization, network utilization, system I/O states, and log analysis. - Managed pr

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Linux System Administrator

Indian Computer Corporation (BHEL Project)

Jun 2015 - Apr 2017 (1 year 11 months)

Installed, configured, and maintained Linux servers and system resources for the BHEL project.Provided user support for network, hardware, and OS-level issues ensuring operational continuity.Assisted in patch management, backup processes, and data recovery operations.

Muppudathi Murugan

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