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Mohan Marappan Email & Phone Number

Technical Architect at Hexaware Technologies
Location: Mclean, Virginia, United States 6 work roles 1 school
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Current company
Role
Technical Architect
Location
Mclean, Virginia, United States
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Mohan Marappan is listed as Technical Architect at Hexaware Technologies, a with 32965 employees, based in Mclean, Virginia, United States. AeroLeads shows a matched LinkedIn profile for Mohan Marappan.

Mohan Marappan previously worked as Technical Test Lead at Infosys and Mainframe Developer/Tester at Freddie Mac. Mohan Marappan holds Bachelor’S Degree, Electronics And Communications Engineering from Erode Sengunthar Engineering College.

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Hexaware Technologies

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Profile bio

About Mohan Marappan

• Has over 16+ years of experience in Mainframes development ,Datacenter Operations ,L3 Support and ETL Testing in Mainframe Technologies. Worked extensively on Mortgage, Collection,insurance and Health Care Domain.• 10+ years of experience in Quality Assurance & Software Testing.• 10+ years of experience in Mainframe Development and QA Lead, Test Strategy, Test Planning, Test Completion Report, Traceability Matrix, Test Estimates and Test Design.• 10+ years of experience in Test Execution Analysis, Defect Tracking, Capturing Test Metrics, Test Reporting and experience in QA Sign-Off.• Having 8+ years of Data Warehouse(ETL) Testing experience in ETL development tools likeData Stage and informatica.• Having 10+ years of Mainframe Testing experience like Batch Testing, Online Testing(CICS) with different Mainframe tools like EZCopy, TSO/ISPF, QMF, SPUFI, JCL, IMS/DB, File-Aid, VSAM, Control-M and DB2.• Experienced in working on DevOps/Agile operations process and tools area (Code review, Build & Release, Environment, Service, Incident and Change Management)• Experience in-depth with cross platforms (Windows and Unix) and goodunderstanding in Clusters and Replications.• Having good experience in Testing of Distributed, Client/Server, Web and Mainframe basedapplications.Well experienced in using networking and platform switching tools like Putty & WinSCP.• Having good knowledge on PL/SQL and experience in troubleshooting Procedures, Packages.• Extensive experience in Data Warehousing testing, Data Migration testing and expertise in writing Complex SQL Queries and data validation of Data Warehouse & BI applications.• Experience in understanding on Data Acquisition, Data Integration, Data Storage, and DataPresentation, End-to-End data validation for ETL & BI systems.• Highly experienced in performing data quality test, data correctness test, data consistency test and process interdependency tests to determine whether processed data is correctly extracted, transformed and loaded.• Verified and Validate the Missing records, Duplicates records, Nulls, Defaults records as per the design specifications.• Involved and verified the data at back end level, Data Integrity like Default values, Null check, Data Cleaning, Sampling, Scrubbing, Aggregation and Data Merging operations.• Good Experience in testing Initial (Reconcile) and Daily (Delta) ETL loads.• Strong skills in data analysis of business rules, data requirement analysis and data mapping(S2T),Transformation/Business Logics for ETL processes. • Having good experience in testing domain.

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Hexaware Technologies
Hexaware Technologies
Technical Architect
McLean, VA, US
Website
Employees
32965
AeroLeads page
6 roles

Mohan Marappan work experience

A career timeline built from the work history available for this profile.

Technical Test Lead

New Jersey, United States

Mainframe Developer/Tester

Mclean, Virginia, United States

ETL and Mainframe Test Analyst for Corporate Data ware House at Freddie Mac.Responsible for Monitoring production batch jobs through Jobtrac Scheduling Tool in Mainframe and Autosys.Responsible for the job is ordered and an instance of the job is created and placed in the Active jobs Environment.Responsible for monitoring the active Jobs environment includes jobs that are waiting to be executed,Jobs that are currently running and jobs that have completed.Extensively involved in running Batch programs in production environment, migrating programs to test and production and control M scheduling.Responsible for View and identify errors that occur during the job execution and analyze and find the root cause of a problem and take corrective action.Responsible for Monitoring Daily & Weekly Batch Cycles for completion.Responsible for Coordinating and managing application restarts via JCL changes or restart procedures as per document.Responsible for Interfacing with application teams for adhoc requests (i.e. restarts, reruns, demand schedules/triggers , Holds , Cancel via JOBTRAC Scheduling tool.Responsible for Debugging JCL Errors, Space issues & Fixing job abends/failures in Production System.Responsible for Modifying and executing the JCL temporarily from the override library.Responsible for requirement gathering, development of new reports, writing functional specification and program specification, technical design, coding reviews and drafting detailed unit test plans.Actively participate in requirements, architecture, and design meetings. Write documentation for both internal and external consumers, covering design artifacts, code, and fixes.Responsible for creating, planning, designing & execution for test scenarios, test cases, test script procedures and debugging.Executes manual & automated test cases, as well as performs back end data validation. Tracks test progress & results in test management tools like Jira, Jenkins

Apr 2014 - Feb 2024

Data Center Engineer

Jersey City, New Jersey, United States

Verisk Analytics has been a leading source of information about property/casualty insurance risk. For a broad spectrum of commercial and personal lines of insurance, Verisk Analytics provides Statistical, actuarial, underwriting, and claims information, policy language, Information about specific locations, fraud-identification tools and technical services. Verisk Analytics has vast experience in data management and security and expertise in predictive modeling.Application Support: This consists of those essential tasks which preserve the basic functions and integrity of the system - that is, to resolve system errors, fix the system when it breaks down, response to audit comments, run-time improvements, etc.

Aug 2011 - Apr 2014

Mainframe Developer/Tester

Chennai, Tamil Nadu, India

IMS Provides Health Care Data Management and Research Services to various customers across the Globe customers like Sanofi Aventis, DSI, Covidian and Merck. IMS runs the IC alignment and aggregation process that will produce files to be used for Incentive Compensation, detail reporting, & goal setting. IMS will align and aggregate TMOP & Xponent data licensed by Sanofi-Aventis from the IMS data factories, and electronically transfer that data to the Callidus on-demand data center. IMS will run the aggregation process for both the semi-annual goal setting as well as the monthly IC update process.Responsibilities:• Responsible for requirement gathering, development of new reports, writing functional specification and program specification, technical design, coding reviews and drafting detailed unit test plans.• Responsible for decomposing requirements into tasks and providing estimates for those tasks. Ensure that code adheres to strict standards for accessibility, security, object-oriented practices and performance. • Actively participate in requirements, architecture, and design meetings. Write documentation for both internal and external consumers, covering design artifacts, code, and fixes.• Responsible for creating, planning, designing & execution for test scenarios, test cases, test script procedures and debugging.• Executes manual & automated test cases, as well as performs back-end data validation. • Responsible for working with the quality control team during integration testing and resolving any issues uncovered during the debugging process.• Responsible for Providing technical mentoring and leadership to existing staff members as they transition to new technology. Lead peer code reviews.• Leading a well-oiled team of offshore testing professionals, to focus and achieve the desired customer objective.• Analyzing the requirements for each module responsible, and there by• Preparation of Test Plan based on customer requirement specification

Jan 2009 - Aug 2011

Software Engineer

Chennai Area, India

• Responsible for Monitoring production batch jobs through CONTROL-M Scheduling Tool in Mainframe.• Responsible for the job is ordered and an instance of the job is created and placed in the Active jobs Environment.• Responsible for monitoring the active Jobs environment includes jobs that are waiting to be executed, Jobs that are currently running and jobs that have completed.• Extensively involved in running Batch programs in production environment, migrating programs to test and production and control M scheduling.• Responsible for View and identify errors that occur during the job execution and analyze and find the root cause of a problem and take corrective action.• Responsible for Monitoring Daily & Weekly Batch Cycles for completion.• Responsible for Coordinating and managing application restarts via JCL changes or restart procedures as per document.• Responsible for Interfacing with application teams for ad hoc requests (i.e., restarts, reruns, demand schedules/triggers, Holds, Cancel, Adding Conditions) via JOBTRAC Scheduling tool.• Responsible for Debugging JCL Errors, Space issues & Fixing job abends/failures in Production System.• Responsible for Modifying and executing the JCL temporarily from the override library.• Responsible for Performing Ad Hoc Scheduling Requests.• Responsible for running various reports and monitoring processes, scheduler, implementing password controls.• Responsible for Initiating and coordinating with the Production Scheduling team on nightly batch schedules.• Maintaining SLA with Incidents, changes and Service requests as agreed with customers.

Jun 2006 - Dec 2008
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1 education record

Mohan Marappan education

  • Erode Sengunthar Engineering College
    Erode Sengunthar Engineering College
    Electronics And Communications Engineering
FAQ

Frequently asked questions about Mohan Marappan

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What company does Mohan Marappan work for?

Mohan Marappan works for Hexaware Technologies.

What is Mohan Marappan's role at Hexaware Technologies?

Mohan Marappan is listed as Technical Architect at Hexaware Technologies.

Where is Mohan Marappan based?

Mohan Marappan is based in Mclean, Virginia, United States while working with Hexaware Technologies.

What companies has Mohan Marappan worked for?

Mohan Marappan has worked for Hexaware Technologies, Infosys, Freddie Mac, Verisk, and Ims Health.

Who are Mohan Marappan's colleagues at Hexaware Technologies?

Mohan Marappan's colleagues at Hexaware Technologies include Abhijit Jadhav, Sandeep Kumar Gujjeti, Amol M., Narmatha A, and Akshada Singh.

How can I contact Mohan Marappan?

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What schools did Mohan Marappan attend?

Mohan Marappan holds Bachelor’S Degree, Electronics And Communications Engineering from Erode Sengunthar Engineering College.

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