Product Support at Makr Group (2025-06 – Present)
Design and implement sequence control logic for ground spray features using VisiLogic (Unitronics PLC), perform functional testing, support ERP migration from Creatio to NetSuite, and manage incidents through structured ticketing workflows.
- Design and implement sequence control logic for ground spray (water splash pad) features using VisiLogic (Unitronics PLC), including timed activation cycles, sensor-based triggers, and safety interlocks.
- Perform functional testing, validation, and troubleshooting of control logic to ensure reliable production operations.
- Support ERP migration from Creatio to NetSuite, assisting with configuration validation, data verification, UAT coordination, and post-go-live issue resolution.
- Collaborate with business stakeholders and technical teams to analyze system requirements and resolve integration issues.
- Manage incidents and service requests through structured ticketing workflows aligned with ITIL practices.
Middleware Administrator at Cognizant (End Client NSDL) (2022-08 – 2023-08)
Provided L2/L3 production support for IBM WebSphere Application Server, Apache Tomcat, and IBM HTTP Server in high-availability environments. Managed installations, configurations, patches, SSL certificates, IBM MQ queues, and performance monitoring.
- Provided L2/L3 production support for IBM WebSphere Application Server (WAS), Apache Tomcat, and IBM HTTP Server (IHS) in high-availability environments.
- Installed, configured, and applied version upgrades and security patches to WebSphere, Java, Apache Tomcat, and HTTP servers in production and staging environments.
- Coordinated with load balancer team to troubleshoot traffic routing, SSL offloading, and backend connectivity issues.
- Participated in on-call rotation supporting 24/7 production systems and emergency incident response.
- Deployed EAR, WAR, and JAR applications across WebSphere and IHS environments following ITIL-based change management processes.
- Monitored CPU, memory, JVM heap utilization, JDBC connection pools, and thread performance using WebSphere Performance Tuning Toolkit and enterprise monitoring tools.
- Conducted thread dump and heap dump analysis using IBM Thread and Monitor Dump Analyzer to identify root causes of performance degradation.
- Managed IBM MQ queues, channels, and listeners, including queue creation, alteration, backout queue processing, and message troubleshooting.
- Implemented SSL certificates including CSR generation, certificate installation, renewal, and expiration monitoring.
- Performed root cause analysis (RCA) for production incidents and ensured timely resolution within SLA timelines.
- Coordinated with cross-functional teams including application, database, network, OS, and load balancer teams to resolve infrastructure-related issues.
- Ensured compliance with enterprise security standards by maintaining appropriate patch levels and vulnerability remediation.
Production Support at Clover Infotech (End Client HDFC & Kotak Mahindra Bank) (2019-12 – 2022-08)
Administered and maintained IBM WebSphere Application Server, IBM HTTP Server, Apache Tomcat, and Microsoft IIS in production and disaster recovery environments. Managed CI/CD pipelines, Java application debugging, monitoring, release windows, and disaster recovery coordination.
- Administered and maintained IBM WebSphere Application Server, IBM HTTP Server (IHS), Apache Tomcat, and Microsoft IIS in production and disaster recovery environments.
- Managed IIS web servers including application pool configuration, bindings, virtual directories, SSL implementation, and troubleshooting of application pool failures.
- Installed, configured, and applied security patches to middleware and web server components to maintain compliance and system integrity.
- Worked with CI/CD pipelines to support automated application deployments across production and staging environments, ensuring controlled and reliable releases.
- Developed and maintained shell scripts to automate service restarts, health checks, and deployment activities.
- Performed Java application debugging including thread dump and heap dump analysis to identify deadlocks, high CPU threads, and memory leaks in production systems.
- Monitored web server health, JVM performance, and application availability using Dynatrace and enterprise monitoring tools.
- Managed scheduled release windows and coordinated deployment activities following ITIL incident, change, and problem management processes.
- Performed disaster recovery coordination and replication validation between production and DR environments.
- Restored WebSphere profile nodes across hosts and performed federation/defederation with Deployment Manager (Dmgr).
- Configured automated alerts for SSL certificate expiration and server performance thresholds.
- Collaborated with cross-functional stakeholders including developers, database administrators, storage teams, network engineers, and OS teams to support end-to-end application go-live activities.
