Quality Assurance Business Systems
Resume:
Rajesh Kumar Yelchuri
Mob: - +1-469-***-****
****************@*****.*** / *****************@*****.***
Summary: -
* + years of extensive experience in healthcare, retail, telecom and banking domains in the mainframe environment.
Extensive experience in Business Requirement Analysis, Business Systems Requirement Document, System Design, Development, System Testing, User Acceptance Testing, Implementation, Maintenance, Estimation, Documentation, Quality Assurance practices and Production Support Projects.
Fairly diversified in application development experience using MF COBOL,AS400, DB2, JCL, VSAM, IDMS, MQ Series, MKS, REXX, Connect: Direct, SFTP, SQL, JIRA, HTML, XML, QMF, SPUFI, TSO/ISPF/PDF, SDF-II, Z/OS, OS/390, MVS/ESA, Windows NT, Platinum, Change Man, Endeavor, Librarian, File-Aid, Easytrieve, Xpeditor, Trace Master, In Sync, CA-7, TWS, File-Aid for DB2,Java and Python.
Experience in utility programs like IEFBR14, IEBGENER, IEBCOPY, REPRO, IDCAMS, SORT, MERGE, SYNCSORT, ICETOOL, JES2 and JES3.
6+ years of extensive experience in HEALTHCARE, RETAIL, TELECOM and BANKING domains in the COBOL developer and AS400 developer.
Experience in Defect tracking tools like Test Director, Peregrine and Clear Quest.
Has done documentation for User Requirement Document, Detailed Design Document and System Test Cases document with abide the Quality Assurance Standards.
Expertise in developing, maintaining and production support mission-critical applications in various functional areas like healthcare, retail, telecom, and banking domains.
Well, I am acquainted with Feasibility Study, Impact and Gap Analysis, Design, Programming, Testing and support to the complete SDLC.
Expertise in analyzing old applications and preparing design specifications for better performance and improved functionality.
Coordinate and participate in reviews, revisions, changes, enhancements, testing, and documentation of system enhancements and/or business opportunities.
Strong experience in handling Batch and Online Abends and also efficient in batch cycle tunings in a Production Support environment.
Requirement-driven, business-focused and working smart in identifying and resolving problems beforehand and implementing efficient solutions with long-term focus.
Well experienced in 24x7 On-Call Production Support for mission-critical applications.
Good interaction with Managers, Team leads, Subject Matter Experts and Team members to coordinate job tasks.
Experience in creating and verifying Test data stored on a Mainframes relational database using tools such as SQL, File-Aid for DB2, QMF, IBM DB2 Tools and SPUFI.
Excellent problem-solving ability with keen eyes to quickly identify opportunities for improvement in the processes and fixing the problems. Has full software development life cycle experience with strong emphasis on quality of software products.
I have worked on the Mainframe Decommission project as COBOL developer, also using SYNC SORT and by using APIs.
Writing the COBOL code from scratch as a Cobol Developer.
Enhance the AS400 Programs as part of Mainframe to Java migration project.
Worked on Java programs to see dependencies and copybooks alignment.
Worked on design and development steps to perform JCL compatibility in non-production environments.
Provided support for deployments and Change requests.
Worked on API’s development using Java and spring boot.
Worked on APIs to connect the Mainframe DB2 tables.
Experience in providing advanced solutions for mainframe migration projects.
Basic ideas on Python concepts like OOPs, Exceptional handling, File handling, Modules and packages and generators.
Basic knowledge on Java concepts like APIs, OOPS, Classes and Objects.
TECHNICAL SKILLS
Programming Languages
MF COBOL, AS400, REXX, Eztrieve, SQL, JCL, HTML, XML, Python, JAVA, spring boot
Tools
SPUFI, QMF, Endeavor, Xpeditor, TSO/ISPF, File-Aid, Abend-Aid, CA-7,
Omegagon, Test Directory, CONTROL-M, Workbench, ServiceNow, IBM Z/OS explorer, SFTP.
Environment
Z/OS, OS/390, MVS/ESA, Unix, Windows 7 Enterprise, Windows 10 Enterprise
Databases
DB2, Oracle and VSAM
Utilities
IEFBR14, IEBGENER, IEBCOPY, IDCAMS, SYNCSORT, MERGE, REPRO
Reporting Tool
Business Objects, ITAM, ServiceNow
Microsoft Products
Share point, MS Word, MS Excel, MS Power Point
Education
Master of Science in CS from TRINE University-(2022-2023)
Bachelor of Technology (ECE) from JNTUK –(2012-2016)
Professional Experience: -
Project : VZ ELVIS Jun 2024 to till date
Client : Verizon
Organizations : HCL America
Software : COBOL, AS400, JCL, DB2 and ZOS Operating System, IBM Z/OS Explorer, Java, Python, APIs
Tools : CA-7, Libririan, FILE-AID, ABEND-AID, SPUFI, QMF, ServiceNow, IBM Z/OS Explorer, ZFYI, DB viewer.
Role: - : COBOL/ Senior Mainframe Developer
Platform: Tele Communication
ELVIS is Elimination of vision system, In version all the Loans details resists on the VISION system and as the part of Elvis project we have to analyze the Mainframe code (JCL,COBOL,DB-2 tables ) and we have to prepare the technical requirement document for the JAVA team and JAVA team will implement same scenarios in JAVA and apart from that currently for Loan number field its using 4 bytes and we have to increase the 4 bytes to 8 bytes.
Responsibilities
Responsible for gathering requirements from the business users.
Provide 24/7 application production support.
Enhancing the COBOL and JCL’s according to the requirements.
Responsible for preparing detailed design documents based on the Functional Design document.
Involved in meetings with business users for new requirements gathering.
Developed brand new programs and also modified the existing batch Programs.
Responsible for coding programs by using COBOL, DB2 and JCL.
Preparation of test data, test cases, test reports, regression testing with QA team for both batch and online process.
Involved in code reviews and also conducted code walk throughs with the designers.
Performed Unit testing and integration testing for the modules coded.
Fixed the defects which are logged in Peregrine tool during Clone Testing.
Responsible for resolving severity tickets which are logged by the business users.
I have documented the test results using Microsoft word, have used SQL's extensively in documenting the test results. Used QMF and SPUFI to validate the Test Results.
Fixed the production ABEND issues depending upon the severity basis and also documented the same.
Responsible for Change Requests work which will be raised by the various departmental business users.
Involved in documentation for the deliverables and also prepared user documentation.
Writing the Cobol code from scratch as a Cobol Developer
Writing the AS400 code from scratch as a Developer
Environment:- IBM Z/OS,AS400, TSO/ISPF, MF COBOL, CICS, DB2, SPUFI, QMF, VSAM, JCL, SFTP, JIRA, Endeavor, Xpeditor, IBM Utilities, IBM DB2 Tools, File-Aid, CCF/MMF, ITOM, TWS, SharePoint, MS-Word, MS-Excel, Visio, Lotus Notes, SharePoint.
Project : Walmart MF Elimination Project Jun 2023 to Jun 2024
Client : Walmart, USA
Organization : CDS, USA
Software : COBOL, JCL, DB2 and ZOS Operating System, IBM Z/OS Explorer
Tools : CA-7, Libririan, FILE-AID, ABEND-AID, SPUFI, QMF, ServiceNow, IBM Z/OS Explorer, ZFYI, DB viewer.
Role: - : COBOL/Mainframe Developer
Platform: Health and Wellness
Walmart Pharmacies use Connexus application to complete tasks that the pharmacist or technician needs to do, right from taking the customer’s prescription till dispensing and providing counseling to the customers. In this project Walmart decided to migrate all the Pharmacy applications into Hadoop, as part of the project we have analyzed and provided impacts and decommissioned some of application data to Cloud Technologies.
Responsibilities: -
Responsible for gathering requirements from the business users.
Provide 24/7 application production support.
Enhancing the COBOL and JCL’s according to the requirements.
Responsible for preparing detailed design documents based on the Functional Design document.
Involved in meetings with business users for new requirements gathering.
Developed brand new programs and also modified the existing batch Programs.
Responsible for coding programs by using COBOL, DB2 and JCL.
Preparation of test data, test cases, test reports, regression testing with QA team for both batch and online process.
Involved in code reviews and also conducted code walk throughs with the designers.
Performed Unit testing and integration testing for the modules coded.
Fixed the defects which are logged in Peregrine tool during Clone Testing.
Responsible for resolving severity tickets which are logged by the business users.
I have documented the test results using Microsoft word, have used SQL's extensively in documenting the test results. Used QMF and SPUFI to validate the Test Results.
Fixed the production ABEND issues depending upon the severity basis and also documented the same.
Responsible for Change Requests work which will be raised by the various departmental business users.
Involved in documentation for the deliverables and also prepared user documentation.
Writing the Cobol code from scratch as a Cobol Developer
Enhance the AS400 Programs as part of Mainframe to Java migration project.
Worked on Java programs to see dependencies and copybooks alignment.
Worked on design and development steps to perform JCL compatibility in non-production environments.
Provided support for deployments and Change requests.
Worked on API’s development using Java and spring boot.
Worked on Java APIs to connect the Mainframe DB2 tables.
Experience in providing advanced solutions for mainframe migration projects.
Basic knowledge on Python concepts like OOPs, Exceptional handling, File handling, Modules and packages and generators.
Basic knowledge of Java concepts and python concepts.
Environment:- IBM Z/OS, TSO/ISPF, MF COBOL, CICS, DB2, SPUFI, QMF, VSAM, JCL, SFTP, JIRA, Endeavor, Xpeditor, IBM Utilities, IBM DB2 Tools, File-Aid, CCF/MMF, ITOM, TWS, SharePoint, MS-Word, MS-Excel, Visio, Lotus Notes, SharePoint,
Java, APIs, Spring Boot, Python.
Project : Walmar Payroll Decommission Project Sep 2021 to Mar 2022
Client : Walmart
Organizations : TCS, India
Software : COBOL, AS400, JCL, DB2 and ZOS Operating System, IBM Z/OS Explorer, Java, Python, APIs
Tools : CA-7, Libririan, FILE-AID, ABEND-AID, SPUFI, QMF, ServiceNow, IBM Z/OS Explorer, ZFYI, DB viewer.
Role: - : COBOL/ Senior Mainframe Developer
Platform: Retail & Payroll
For Walmart employees all the payroll related tasks taken care by Third party vendor but Walmart itself decided to implement their own system that’s what we are started analyzing every job program and data flow and prepared a document with detail technically and then we have started to replicate all the payroll data in Walmart environment Initially started with few records and after that we moved entire payroll system to Walmart environment.
Responsibilities
Responsible for gathering requirements from the business users.
Provide 24/7 application production support.
Enhancing the COBOL and JCL’s according to the requirements.
Responsible for preparing detailed design documents based on the Functional Design document.
Involved in meetings with business users for new requirements gathering.
Developed brand new programs and also modified the existing batch Programs.
Responsible for coding programs by using COBOL, DB2 and JCL.
Preparation of test data, test cases, test reports, regression testing with QA team for both batch and online process.
Involved in code reviews and also conducted code walk throughs with the designers.
Performed Unit testing and integration testing for the modules coded.
Fixed the defects which are logged in Peregrine tool during Clone Testing.
Responsible for resolving severity tickets which are logged by the business users.
I have documented the test results using Microsoft word, have used SQL's extensively in documenting the test results. Used QMF and SPUFI to validate the Test Results.
Fixed the production ABEND issues depending upon the severity basis and also documented the same.
Responsible for Change Requests work which will be raised by the various departmental business users.
Involved in documentation for the deliverables and also prepared user documentation.
Writing the Cobol code from scratch as a Cobol Developer
Writing the AS400 code from scratch as a Developer
Environment:- IBM Z/OS,AS400, TSO/ISPF, MF COBOL, CICS, DB2, SPUFI, QMF, VSAM, JCL, SFTP, JIRA, Endeavor, Xpeditor, IBM Utilities, IBM DB2 Tools, File-Aid, CCF/MMF, ITOM, TWS, SharePoint, MS-Word, MS-Excel, Visio, Lotus Notes, SharePoint.
Project : MICA with Infosys Jan 2020 to Aug 2021
Client : Telstra, Australian Telecommunication Company
Organizations : Infosys, India
Software : COBOL II, AS400, JCL, IMS DB, DB2 and z/OS Operating System.
Tools : ENDEVOR, XPEDITER, FILE-AID, ABEND-AID, SPUFI, QMF, Change man, BMC Remedy, Control-M, REXX.
Role: - : COBOL/ Mainframe Developer
Platform: Tele-Communication.
FLEXCAB is a major billing system in Telstra for wholesale, PSTN, Mobile (where single bill) and special services. The business objective of FLEXCAB is to provide customers with invoices for the usage of network, services and products that are offered by Telstra. The FLEXCAB system is made up of many components performing message correction, message billing, reporting, bill invoicing, format of invoicing, credit assessment database including privacy logging functions and developing code from scratch as a COBOL developer.
Responsibilities: -
Design/build/maintenance of interface framework.
Enhance the code as Cobol developer.
Sorting the data based on requirement by using SYNC SORT
Designing of new MQ interface/MQ infrastructure change
Coordinating with MQ administrators for MQ object creation/modification.
Design/development of new batch interfaces using SilkSFTP/sFTP/FTP/BFX protocols.
Engaging interface for sFTP private key/public key installation/configuration.
Enhance existing framework modules (in COBOL) to handle interface requirements.
Provide 24/7 application production support from offshore.
Copy Management- Unload data from development regions to production regions.
Table management – Refresh data in production every week
Handle high severity Docket, PBI/PKE’s and CRQ’s.
Worked using DevOps and Agile methodologies.
Writing the Cobol code from scratch as a Cobol Developer
Enhance the AS400 Programs as part of Mainframe to Java migration project.
Worked on Java programs to see dependencies and copybooks alignment.
Worked on design and development steps to perform JCL compatibility in non-production environments.
Provided support for deployments and Change requests.
Worked on API’s development using Java and spring boot.
Worked on APIs to connect the Mainframe DB2 tables.
Experience in providing advanced solutions for mainframe migration projects.
Environment:- IBM Z/OS, TSO/ISPF, Enterprise COBOL,AS400, CICS, DB2, SPUFI, QMF, VSAM, JCL, SFTP, JIRA, Connect: Direct, Endeavor, Xpeditor, IBM Utilities, IBM DB2 Tools, File-Aid, CCF/MMF, ITOM, TWS, SharePoint, MS-Word, MS-Excel, Visio, Lotus Notes, SharePoint.
Project : Flex Cab (Flexible Customer Account Billing System) with HCL May 2016 to Jan 2020
Client : Telstra, Australian Telecommunication Company
Organizations : HCL Technologies, India
Software : COBOL II, AS400, JCL, IMS DB, DB2 and z/OS Operating System
Tools : ENDEVOR, XPEDITER, FILE-AID, ABEND-AID, SPUFI, QMF, Change man, BMC Remedy, Control-M, REXX.
Role : Mainframe Developer/Software Engineer
Platform: Tele-Communication.
FLEXCAB is a major billing system in Telstra for wholesale, PSTN, Mobile (where single bill) and special services. The business objective of FLEXCAB is to provide customers with invoices for the usage of network, services and products that are offered by Telstra. The FLEXCAB system is made up of many components performing message correction, message billing, reporting, bill invoicing, format of invoicing, credit assessment database including privacy logging functions.
Responsibilities:
Strong experience in handling Batch and Online Abends and also efficient in batch cycle tunings in a Production Support environment.
Developing the code as Cobol Developer.
Requirement-driven, business-focused and working smart in identifying and resolving problems beforehand and implementing efficient solutions with long-term focus.
Well experienced in 24x7 On-Call Production Support for mission-critical applications.
Good interaction with Managers, Team leads, Subject Matter Experts and Team members to coordinate job tasks.
Experience in creating and verifying Test data stored on a Mainframes relational database using tools such as SQL, File-Aid for DB2, QMF, IBM DB2 Tools and SPUFI.
Excellent problem-solving ability with keen eyes to quickly identify opportunities for improvement in the processes and fixing the problems.
Has full software development life cycle experience with strong emphasis on quality of software products.
Design/build/maintenance of interface framework.
Designing of new MQ interface/MQ infrastructure change
Coordinating with MQ administrators for MQ object creation/modification.
Design/development of new batch interfaces using Silk SFTP/sFTP/FTP/FTP/BFX protocols.
Engaging interface for sFTP private key/public key installation/configuration.
Enhance existing framework modules (in COBOL) to handle interface requirements.
Provide 24/7 application production support from offshore.
Copy Management- Unload data from development regions to production regions.
Writing the Cobol code from scratch as a Cobol Developer
Enhancing the code as COBOL developer.
Table management – Refresh data in production every week
Handle high severity Docket, PBI/PKE’s and CRQ’s.
Worked using DevOps and Agile methodologies.
Environment:- IBM Z/OS, TSO/ISPF, Enterprise COBOL,AS400, CICS, DB2, SPUFI, QMF, VSAM, JCL, SFTP, JIRA, Endeavor, Xpeditor, IBM Utilities, IBM DB2 Tools, File-Aid, CCF/MMF, ITOM, TWS, SharePoint, MS-Word, MS-Excel, Visio, Lotus Notes, SharePoint.
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