SUMMARY

• Sr. IBM Mainframe Application developer, with 9 years of hands on experience in application development. Extensive experience in the IT industry, involved with full project life cycle, complete Software Development Life Cycle.
• Working Experience in domains "Banking and Finance".
• Had direct interaction with the Business users and worked together with them in requirement gathering, validate user testing and release planning.
• Strong experience in project life cycle, starting from requirement analysis, estimation, design, coding, testing, implementation and post implementation activities.
• Strong exposure in identifying issues (technical and design oriented) and identifying appropriate solution.
• Having good experience in analyzing existing process and identifying areas of the application where the performance can be improved.
• Good working knowledge of major Z/OS Operating Systems
• Strong Knowledge in COBOL,VSAM,JCL,DB2,CICS,IMS,IDMS and REXX
• Analysis of stories and identification of impacted programs andDB2Storedproceduresfor modification.
• Coding and testing ofDB2StoredProcedures.
• Identified DB2 queries where tuning was required and accordingly worked on the construction of DB2 queries to improve the performance of the process.
• Actively worked on construction of Easytrieve code and sort cards
• Proficient in creating Training Manual & User Guides
• Experience in developing Test Plans, Test Specifications and Test cases using requirements and design documents.
• Working Knowledge in Endevor, Expediter, File - Aid, Change man, Control-M, Abend aid
• Ability to thoroughly design and code system's functional requirements, and construct with minimal or no defects and implement the same.
• Ability to handle multiple tasks and work independently as well as in a team.
• Ability to handle a team and address tasks parallel.
• Good team player with excellent written, verbal communication and interpersonal skills. Proficient in coding standards which will result in better performance of the code.
• Expertise in manual testing. Working knowledge in Test Management tool Squids.
• Open to suggestions and ideas from team mates/seniors. Work with the highest standards of integrity and trust Strong background in mathematics and have very good analytical and problem solving skills.

TECHNICAL SKILLS

Programming Languages: COBOL, PL/1 JCL, REXX, Natural/ADABAS and Core Java

Database Tools: DB2, IMS DB/DC,IDMS, SQL Server, Oracle

Access Method: VSAM

OLTP: CICS

Tools: FILE-AID, CHANGEMAN, QMF, EclipseSPUFI, ENDEVOR, XPEDITOR, CONTROL M

Operating systems: Z/OS, MVS, XP, UNIX

Hadoop/Big Data: Hadoop, Map Reduce, HDFS, HBase, Zookeeper, Hive, PigSqoop, Oozie, Flume, HBase, Spark, Scala

PROFESSIONAL EXPERIENCE

Sr. Mainframe Developer

Confidential, St. Louis, MO

Responsibilities:

• Participated in all phases of development including requirements gathering and analysis, designing, developing, implementation, deployment, maintenance and support.
• Used Workbench tool for migrating the elements from Development to Clone for compilation and Testing.
• Used Quality center tool to track the issues and changes requested for bug fixing, production error request
• Coded according to the specification and standards of the business unit.
• Developed COBOL programs, Proceduresand JCL's as per the requirement from the business.
• Analysis of stories and identification of impacted programs andDB2Storedproceduresfor modification.
• Coding and testing ofDB2StoredProcedures
• Creation, optimization and maintenance ofDB2StoredProceduresusing COBOL
• Modified the existing job flow i.e. set of JCL'S,DB2& COBOL programs.
• Experience in database development for creating complex database Queries, Writing Constraints, Indexes, Views,StoredProcedures, Cursors and Triggers in IBMDB2
• Prepared test plans and designed test data.
• Created the components and their testing.
• Tested for functionality check in collaboration with business unit.
• Implementation and post implementation support of the subsystem created.
• Extensively used File-Aid for VSAM and other file handling.
• Created JOB flow (Daily, Weekly, and Monthly).
• Performed the Quality standards and work within the specified time frames.
• Provided emergency Bug fixes in production environment
• Attended weekly status meeting with Developers, Project manager, and Business Analyst to discuss the bugs, defects, fixes and overall testing status.
• Perform Peer review and log any issues and track till it is closed.

Environment: COBOL, JCL, DB2, VSAM, CICS, SPUFI, DB2 File aid, Eclipse, Java, Oracle, SQL, Endeavor, Abend-aid, Expediter, SPUFI, FILE-AID, TSO/ISPF, Control-M, Z/OS and MVS.

Sr. Mainframe Developer

Confidential

Responsibilities:

• Implementation of new module development, new change requirement, fixes the code. Defect fixing for defects identified in pre-production environments and production environment.
• Wrote technical design document with class, sequence, and activity diagrams in each use case.
• Developed various reusable helper and utility classes which were used across all modules of the application.
• Preparing the WSDLs and establishing connectivity among interfaces using Web services.
• Used Soap UI for testing the Web services
• Handling Screen changes.
• Coded DB2 module as per the requirements and table changes.
• Coded the COBOL and IMS programs.
• Reviewing of code to ensure the standards set by the company and checking whether the logic will work according to the requirements or not.
• Coordinate with Project managers, Development and QA teams during the course of the project.
• Setup the regions for ST, SIT, UAT and pre-Prod testing.
• Performed online and batch shake out for all the regions.
• Attending the daily status meeting during testing phases, supporting and fixing the bugs raised by testers and users.
• Coordinating with the client managers during the project implementations.
• Documenting the entire project related documents and test cases for future references.
• Writing REXX scripts to do automation work.
• Loading and unloading data between different testing environments.
• Conducting trainings to support team about the projects during releases.
• Coordinating with ATOS team during releases, monitoring the one time jobs and checking the production environments after finishing release activities.

Environment: Endeavor, Abend-aid, COBOL, Natural/ADABAS, JCL, IMS, REXX, VSAM, CICS, QMF, Expediter, IMS File -Aid, FILE-AID, TSO/ISPF, Control-M, Z/OS and MVS.

Mainframe Developer

Confidential

Responsibilities:

• Analysis of technical decisions made and preparation of issue log for further clarifications
• Created technical analysis and systems design documents.
• Integrated code changes and performed unit testing, system testing and integration testing.
• Review of technical specs and Code walkthrough.
• Coding of impacted and new programs in COBOL.
• Coded new programs using COBOL & IDMS as per the functional & requirements specifications
• Developing the different batch jobs.
• Review of unit test plan and unit test cases.
• Unit testing of new and changed components with complete test coverage.
• Documentation of unit test results and walkthrough to leads.
• Defects fixing during different phases of testing using HP Quality center.
• Conducting daily onsite technical meetings.
• Weekly Status updates to onsite team.

Environment: TSO/ISPL, DB2, COBOL, JCL, VSAM, CICS, SORT, IDMS, ENDEVOR, File-Aid, Control-M, SPUFI, QMF.

Mainframe Developer

Confidential

Responsibilities:

• Involved in preparing detailed design documents, coding, testing.
• Coding COBOL and CICS programs for screen related changes.
• Designing the screens and writing the BMS macros for screen development.
• Preparing JCL jobs for preparing batch related activities.
• Managing the version control in Change man.
• Browsing the DB2 data using QMF and SPUFI during testing phases.
• Responsible to execute SQL Queries to get the data from SQL Server Database.
• Involved Coding as per the program specifications.
• Involved in code reviews.
• Well versatile with all phases of testing.
• Set up SIT and UAT test regions
• Provide SIT and UAT support
• Preparation of migration forms and implementation instructions

Environment: COBOL, JCL, DB2, REXX, VSAM, CICS, QMF, Expediter, SQL Server, SPUFI, FILE-AID, Easytrieve TSO/ISPF, DB2 utilities, Intertest, CA7, Z/OS and MVS.