Scrum Master Mainframe Developer

THENMOZHI JEYAKUMAR

Mainframe developer & Lead

Certified SAFe Scrum Master

LINKEDIN: https://www.linkedin.com/in/thenmozhi-j-278bb0251

Email ID: ***********@*****.***

Mobile#: 516-***-****

PROFESSIONAL SUMMARY

15 years of experience as an Senior Mainframe developer/Lead on Investment Banking & Insurance projects using WATERFALL & AGILE methodologies.

●Extensive work experience in

Analysis and development in mainframe batch and Online environment

using TSO/ISPF, COBOL, JCL, VSAM, DB2, CICS, ENDEVOR, CHANGEMAN, Jira,

Service Now & Jenkins

●Experienced in Analysis, Design, Test Planning, Test Preparation, Test Execution, Issue Resolution, Implementation support, On-call support and Incident Fix to assure that all aspects of a Project are in Compliance with the Business Requirements.

●Working with Business Analysts, SME and Architects to work on functional design document and developing the technical design document.

●Working closely with offshore teams, upstream and downstream systems teams and QA teams for the successful release of projects.

●Working on systems analysis and application development for the implementation of change requests.

●Excellent problem-solving skills and ability to clearly explain program logic.

●Good Knowledge on Trade processing, Options, futures, dividends, bonus, Clearing and settlement

Process in Citi NAM and CITI-ITO projects.

SKILL MATRIX:

Operating Systems

Z/Os, Windows 11

Programming Languages

COBOL, JCL, Ezytrieve

OLTP

CICS

Databases

SQL/DB2, IMS-DB, TeraData

Version Control

CA tool ENDEVOR, CHANGEMAN, Jenkins

Others

TSO/ISPF/MVS File-Aid, File-Manager,NDM, FTP, SFTP, EDIFECS & Axway, Service Now, Web services, API, MicroSoft Suite,

EDUCATION:

Bachelor’s degree in Computer Science and engineering, University of Madras - 2000

PROJECTS SUMMARY:

Client Name

Primary Skills

Period

HCSC - Blue cross Blue Shield

COBOL, JCL, VSAM, DB2, Endevor, Ezytrieve, Axway, EDM

Jan 2025 – Current

HCSC - Blue cross Blue Shield

COBOL, JCL, VSAM, DB2, Endevor, Ezytrieve, Axway, EDM

May 2024- July 2024

Express Scripts

JCL, DB2, Teradata, API Services, COBOL, JCL, VSAM, DB2, Endevor,

Oct 2022 – Jan 2024

Royal Bank of Scotland

COBOL, JCL, CICS, VSAM, DB2, ChangeMan

Jan 2017 – April 2018

CITI Bank-IT Operations(Singapore)

COBOL, JCL, CICS, VSAM, Teradata, DB2, API Services, Jira, Jenkins, ENDEVOR, Ezytrieve, MQ, Axway, EDM

Jan 2013 – Dec 2016

Morgan Stanley & Smith Barney

COBOL, JCL, CICS, VSAM, DB2, Endevor, Ezytrieve

Jan 2012-Dec 2012

Citi Bank- NAM

COBOL, JCL, CICS, VSAM, IMS DB, ChangeMan, Jira

Jan 2008 – Sep 2011

Lehman Brothers

COBOL, JCL, CICS, VSAM, DB2, Panvalet

Jan 2007 – Dec 2007

Merrill Lynch

COBOL, JCL, CICS, VSAM, DB2, Endevor

Jul 2005 – Dec 2006

ROLES & RESPONSIBILITIES:

oGood Knowledge on SDLC on Waterfall & Agile methodologies including story creation, requirement gathering, analysis, Coding, Testing, SIT & UAT, Implementation & post implementation support.

oProviding impact analyze and estimation for completing the task.

oWorking with the Architects & SMEs in preparing/updating the Functional/Technical design document to support

the application changes.

oNew job schedule, modifying the predecessor/successor/dependency/trigger of existing Jobs using CA7.

oTo move the components from DEV to PROD using version control tools ENDEVOR, ChangeMan & Jenkins.

oFile transfer using methods NDM, FTP and SFTP for Axway services using EDM tool.

oPost implementation support and On-call Support.

oPeer review on code changes and unit test results.

oCo-ordinate with other teams to send the data from backend services using API.

oTracking the project status of team members in all SDLC phases until the user signs off also the post implementation.

PROJECTS SUMMARY:

Blue cross Blue Shield(Texas) Jan 2025 – Till Date

Location: Remote

Roles and responsibilities:

Senior Mainframe Tech Lead (COBOL, JCL, VSAM, Ezytrieve, DB2, CICS, ENDEVOR)

●Maintenance, enhancement and incident fix support for medical cross over and reverse eligibility of Members.

●Involving in below

oCOBOL, DB2 & CICS programs changes.

oJCLs, PROCs, related control cards (SORT, DFSORT and other IBM Utilities).

●Impact analysis of all the components are documented in a SPEC and to have review call with SMEs for the SPEC signoff.

●Code changes and unit testing the same and then participate in SIT, UAT and implementation.

●Coding, testing and user signoff for the implementation.

●Incidents fix for the medical cross over Issues.

●Production support on rotational basis.

Blue cross Blue Shield(Texas) May 2024- July 2024

Location: Remote

Roles and responsibilities:

Senior Mainframe Developer (COBOL, JCL, VSAM, Ezytrieve, DB2, CICS, ENDEVOR, CA7)

●Worked on an Agile methodology team to analyze the below mentioned components and do the necessary changes required to differentiate USPS clients.

●Impact analysis of all the components are documented in a SPEC and to have review call with SMEs for the SPEC signoff.

●Impact and logical of these components when we add USPS customers to the existing insurance policies.

●SPEC will have logic description of how to segregate USPS and Non-USPS clients as well.

●Used ENDEVOR as version control tool.

Feb 2024-April 2024: Projected Ended. Worked for getting for New Projects

CIGNA (Express Scripts) Oct’ 2022 – Jan’ 2024

Location: New York(Remote)

Roles and responsibilities:

Senior developer (JCL, DB2,Teradata, API Services)

●Worked on TeraData, DB2 and JCL for the maintenance and enhancements of P360 member’s data and claims management. DB2 and Teradata used for the data creation, storage, maintenance and updating the calculated data into the HC360.

●DB2 stores, maintains the patient’s data such as personal info, claims and

adherence which will be processed by HC360 backend and sent to Teradata tables.

●Teradata tables in turn sends data to mid-tier which further populates the patient’s complete information on the HC360 front end screen to the end users.

●Working on End-to-end agile model.

●Estimate the effort required and complexity of request.

●Analysis and understanding the requirements & story requirements.

●Development, testing and implementation of the story.

●Working with QA team for SIT, UAT environments by providing the inputs required.

●Move the components on all stages of SDLC cycle using ENDEVOR, Jenkins.

●Create and Schedule batch jobs using CA7 and support implementation activities.

●Perform on all Pre implementation work and post implementation support.

●Rotational on-call production support.

May 2018 – Sep 2022: Career Break for Child care

Royal Bank of Scotland (for Tata consultancy Services) Jan 2017 – April 2018

Location: India

Roles and responsibilities:

Mainframe SIT team Tech Lead (COBOL, JCL, VSAM, CICS, REXX,MQ and DB2)

●Lead the team for enhancements of application and monitoring SIT batch cycles.

●Guided the team to fix the issues on time on COBOL, DB2 and VSAM errors.

●Guided the team on how fix common COBOL and DB2 errors in batch cycle

Such as authorization and storage related errors.

●Worked on temporary fixing issues that was not captured in unit tests such as

Unique index violation, cursor to be used and deadlock.

●Also, explained the team on key points while using databases such as authorization, restart & checkpoint

Taking Image copies.

●Closing all the open tickets on time with the proper solution.

●Documented the new solutions for future reference by the team.

●Fixing the batch job issues by making the necessary code changes.

CITI-ITO (for Tata consultancy Services) Jan 2013 – Dec 2016

Location: India

Roles and responsibilities:

Tech Lead (COBOL, JCL, VSAM, DB2, REXX, CICS, FILE-AID, CHANGEMAN, JIRA)

●Extensive work on SDLC cycle including Requirement gathering and Analysis, Coding, Testing,

implementation and User Acceptance testing in wealth management, Corporate Actions such as dividend, Bonus also worked on Futures & options.

●Co-coordinating with the Onsite-Offshore team for analyzing the project requirements

●Prepare and present the Technical requirement document and get the approval from the Architects and SMEs

for making necessary system changes.

●Involving in coding, unit testing, System Integration testing, User Acceptance testing for the task.

●Tracking the project status of peers in all SDLC phases until the user signs off and Post implementation.

●Peer review on code changes and unit test results.

●Reporting the project progress for the Delivery Manager.

Morgan Stanley & Smith Barney (for Tata consultancy Services) Jan 2012 – Dec 2012

Location: New York, USA

Roles and responsibilities:

Onsite Coordinator (COBOL, JCL, VSAM, DB2, FILE-AID, CHANGEMAN, JIRA)

●Discussions with SMEs for analyzing the project requirements

●Providing impact analyze and estimation for completing the task

●Code changes and preparing unit test plans for the requirements.

●Testing the new or modified programs

●Reviewing and testing programs done by other team members

●Involved in SIT and User acceptance testing.

●Created RAPS ad-hoc reports using Ezytreive.

●Coordinated with offshore team members to understand the requirements, prepare test plans and resolve

requirement related queries.

CITI-CMB (for Tata consultancy Services) Jan 2008 – Dec 2012

Location: Jersey City, USA

Roles and responsibilities:

Lead and Onsite Coordinator (COBOL, JCL, VSAM, IMS-DB, DB2, FILE-AID, ENDEVOR, OMEGAMON FOR IMS, JIRA)

●Discussions with SMEs for analyzing the project requirements in all SAL-BONY applications.

●Assisting SMEs to prepare technical design documents for the requirements for clearing and settlement process from BONY and DTCC.

●Providing impact analyze and estimation for completing the task

●Developing and preparing unit test plans for the requirements.

●Testing the new or modified programs

●Reviewing and testing programs done by other team members

●Involved in system integration testing by coordinating with other teams.

●Involved in User acceptance testing.

●Coordinated with offshore team members to understand the requirements, prepare test plans and resolve any project related issues.

●Coordinated for major projects such as collateral protection, HIC allocation and Chase phase-1 with internal and external team members.

●Taken a role as SAL-BONY module lead from Mar’2011 to Aug’2011. This responsibility includes getting weekly status updates from Onsite-Offshore team members to track status of their projects and ensuring on time deliverable also assisting them for any clarifications.

Lehman Brothers (Trade management system) - Tata consultancy Services Jan 2007 - Dec 2007

Location: India

Roles and responsibilities:

Mainframe developer (COBOL, JCL, DB2,Ezytrieve, FILE-AID, CICS, VSAM, PANVALET, XPEDITOR)

●Preparing Low-level design for the various functionalities

●Develop and test the programs for the re-written functionalities.

●Incorporate the enhancements

●Analyze the system for enhancements

●Involved in Peer review.

●Conduct knowledge sharing sessions on client system

Merrill Lynch (Tax reporting system) - Tata consultancy Services July 2005 - Dec 2006

Location: India

Roles and responsibilities:

Mainframe developer (COBOL, JCL, VSAM, FILE-AID, ENDEVOR, CICS, DB2, XPEDITOR)

●Preparing Low-level design for the various functionality

●Develop & Test the programs for the re-written functionality.

●Incorporate the enhancements

●Analyze the system for enhancements

●Test the programs written by other team members

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