SUMMARY

• Experienced in Non - functional requirement gathering, creating test plan & strategy, identify key performance transactions, Performance test scripting, Performance Engineering and Capacity planning.
• Extensive working knowledge in HP LoadRunner, HP Performance Center, CA LISA / DEV TEST, SOAP UI, JMeter and Wireshark.
• Have hands on experience with internal data science projects that includes Hadoop, and Spark with Python.
• Experienced in Service Virtualization with CA LISA / DEV TEST. Have hands on in virtualizing Web services, REST, DB and MQ applications.
• Actively involved in Web UI optimization with various tools like Yslow, Firebug, Fiddler, Google Developer tools.
• Experienced in identifying Load balancing issues, Memory leaks, JVM tuning, thread optimization and garbage collection algorithm optimization.
• Knowledge on Performance Monitoring tools such as AppDynamics, Java Monitoring bundle, New Relic to identify bottlenecks like memory leaks, thread issues.
• Hands on with Devops tools for automatic deployment (Jenkins, Docker, Chef, Vagrant), real-time monitoring (Elastic Search, Filebeat, Graylog) and Visualization (Kibana, Grafana)
• Good Experience in analyzing heap dump, thread dump, Core Dump, SQL explains, Server logs and app logs.
• Assisted architects and developer in design, creating algorithms, code optimization and tuning the SQLs.
• Trained in Jenkins, Dockers, Hadoop, Data science, Cassandra, Mongodb and R.

TECHNICAL SKILLS:

• Web UI Profiling,
• Java Profilers Software Models Environment Python
• Shell Scripting
• HTML 5
• CSS
• SQL
• JavaScript
• Powershell
• Intellij
• Pycharm
• Eclipse
• Netbeans: Github
• Bitbucket
• Gitlab
• HP Load Runner
• CA LISA / DEVTEST
• Jmeter
• Neoload
• Gomez
• HP ALM Performance Center
• HP ALM Quality Center
• DBeaver
• SQL Developer
• Appdynamics
• HP Diagnostics
• HP - BPM
• HP-PC
• HP-Sitescope: Yslow
• Firebug
• Fiddler
• Wireshark: JMC
• JProfiler
• Jvisualm
• Jconsole
• Agile
• Waterfall and Test Driven Model
• Windows servers
• Linux
• Oneops ( Confidential Cloud)

PROFESSIONAL EXPERIENCE

Confidential, Bentonville, AR

Associate Consultant

Responsibilities:

• Led project team with size of 5 to 10 performance test engineers and coordinated with Kanban team of multiple projects.
• Configured Appdynamics in applications and created Dashboard for to monitor JVM, Thread Pool, CPU and Memory utilization graph.
• Created personalized application using Python Flask to display resource utilization graph of Application server and Database server.
• Developed Load testing tool to test IBM MQ based applications from UNIX server and monitored the throughput.
• Extensive working knowledge in Load Runner and Fiddler. Hands on in creating customized DLL for LoadRunner to use it as standalone functions in scripts.
• Created automation applications for test data creation, Log analyzer, Database back up, Availability Report, Environment Setup with UNIX Shell script and PowerShell.
• Worked extensively on Java based Applications like IBM MQ & Tomcat.
• Knowledge of Java Virtual machine internals including class loading, threads, synchronization and garbage collection
• Expertise in virtualizing REST services, MQs and Database to save costs on infrastructure.
• Experienced in using JMC, JConsole, VisualVM, JProfiler to identify JVM bottlenecks and Recommended JVM tuning parameters changes to help in better performance of the system.
• Analyzed SQL plans and SQL optimizer algorithm to tune the query and reduce the resource consumption & IO on database.
• Have good hands on with Open Admin Tool and commands like Onstat, DBaccess, Oninit to monitor resources and query performance of Informix.
• Analyzed thread dumps to find the blocked threads and method causing high resource consumption.
• Developed comprehensive performance test plans and workload models to do Load testing for applications deployed in Oneops (Walmart Cloud) to check the scalability using kubernetes.
• Built Continuous Integration and Continuous Deployment platform using Jenkins, Maven and Shell.

Environment: Java 8, IBM MQ, Kafka Queues, DEV TEST, Angular JS, Spring 3, Jersey, Informix 12.01, Maven, Jenkins, Oneops, Kibana, Filebeat, Tomcat, Apache Web server, Appdynamics, Vugen (HTTP/HTML, Java), IntelliJ, Pycharm, Eclipse IDE,

Confidential

Associate Consultant

Responsibilities:

• Understanding the requirements, preparing the test strategy plan, test script creation and load test execution.
• Managed multiple projects and coordinated with different Scrum teams in US and UK for product delivery.
• Created a Messaging framework in Java to posting messages to any Messaging queue without plugin like MQ Tester. Actively worked on protocols like Web Services (SOAP over HTTP, SOAP over JMS) and Java.
• Implemented HP BAC and HP Sitescope monitoring solution to identify application outages and alert the Support team. This helped in effective triage, finding end user experience and reducing the downtime.
• Monitored application cluster with Gateway queue performance and suggested queue depth, max message length for better throughput of Message Brokers. Identified memory issues in Datapower and improved the performance of high volume data processing modules by optimizing threshold, algorithm and JVM - Garbage collection parameters to reduce processing time.
• Created utilities in powershell & shell for analyzing the logs and creating test data from external machines.

Environment: IBM Message Broker, Datapower, Kafka Queues, Active MQ, Cassandra, Tomcat, Apache Web server, Vugen (Web Services, Java), CA LISA

Confidential

Performance Test Analyst

Responsibilities:

• Involved in finding Performance variation due to adding up the Dyna trace monitoring server to application.
• Automated test data creation for performance testing which had specific interaction of application with VIBES and was validated before every execution.
• Created scripts, scenarios for searching, storing and uploading larger files to Enterprise document management system and analyzed the database resources during the test execution.
• Monitoring CPU, Memory of TIBCO instances, throughput of messages, and resource utilization with TIBCO Administration and TIBCO HAWK during load test. Each process in JVM were monitored and performance issues like Less thread count, Low queue size, High memory usage were spotted.
• Analyzed the stability, and availability of the system during the peak business hour after migration of Oracle UOA to UCM with different types of load test.
• Executed disaster recovery testing for application by bringing down database and application instances.
• Coordinated with Data Management Architects & DBA (From Oracle) to gather various reports and statistics during stress tests to walkthrough the result analysis to all project teams.

Environment: TIBCO, EPAS, Java 7, EDMS, SOAP Service, UNIX, Oracle 11G, iTKO LISA

Confidential

Performance Test Engineer

Responsibilities:

• Developed Vusers scripts for Confidential -US/Europe retail web sites and enhanced the scripts with correlation and parameterization.
• Involved in test scenario preparation, load test execution of different load (Average, Peak and Endurance) depending on the application team's requirement.
• Worked on HTML/HTTP and ICA for Citrix web client with online client and was actively involved in set up of updating windows - loadrunner registry files which are interconnected to the Citrix.
• Monitored server performance with SAR, TOP, VMSTAT, NMON, TRACERT, PINGUTIL and PERFMON
• Actively involved in Web UI optimization of Confidential 's Digital Commerce's sites with various like HttpWatch, Yslow recommendation, Visual Route and Gomez.

Environment: Apache Web server, JBoss, Oracle, HP Loadrunner, Gomez, Neoload, YSlow, Fiddler, Wireshark