Production Support Mainframe Developer

Amit Kumar Singh

Contact: +91-811*******

E-mail: **************@*****.***

Profile

Experienced Mainframe Developer with over 4 years of expertise in designing, developing, and supporting enterprise-level applications using COBOL, JCL, DB2, and VSAM. Proven track record of delivering high- quality software solutions in both development and production support environments. Adept at analysing business requirements, performing impact analysis, and optimizing batch processes. Known for strong problem- solving abilities, attention to detail, and collaborative team contributions in agile and waterfall models. Professional Organization

Job Title: Consultant

Company: Capgemini India PVT LTD

Employment Duration: May 2025 - Present

Job Title: System Engineer

Company: Tata Consultancy Service (TCS)

Employment Duration : April 2021 – May 2025

Technical Skills

Technology MAINFRAME

Development Model Waterfall

Database DB2, VSAM

Languages JCL, COBOL

Other

Version controllers - SCLM

File processing – FileAid

Debug - IBM Debugger

Scheduler – TWS

Others – TSO, SNOW, Jira

PROFFESIONAL EXPERIENCE

Project - 1

Project Overview: This project is based on Management of general ledger, our goal is to provide the balancing amount and Implementation of currency conversion flow for User. Tools & Technology used: DB2, VSAM, FileAid, SCLM, JCL, COBOL, TWS, SNOW Project - 2

Project Overview: This project is based on Split rate rental our goal is to provide by splitting rate for every counter product and creating the appropriate amount form the table. Tools & Technology used: DB2, FileAid, SCLM, JCL, COBOL, TWS, JIRA, SNOW Responsibilities

Development Phase:

• Departed as a software developer, responsible for requirement gathering, prepares impact analysis, coding, end-to-end testing and implementation.

• Post implementation production support.

• My responsibilities include coding of jobs and programs creating and performing unit, system and user acceptance testing batch runs in various SIT, UAT regions.

• Production and post-production activities, which includes production support and timely resolution of abends.

• Optimized system and platform performance capabilities in most efficient, practical way possible. Testing Phase:

• Designing of Test plans, creation of test scripts and other project related information.

• Worked actively on Unit testing, SIT, UAT, pre-production and performance testing.

• Implemented user acceptance testing with focus on documenting defects, identifying bottlenecks and executing test cases.

Production Support:

• Have been actively involved in production support activities for after first project end.

• Monitoring production batches (daily, weekly and monthly) and solving batch abends.

• Keeping the management informed about any abnormality in the system on a daily basis. Certification

• TCS Training Program for Mainframe Technical skills COBOL, JCL, VSAM, DB2.

• Mainframe certification provided by TCS in 2021. Education

• B.Tech in Computer Science Engineering from AKTU University in June 2020 with 80%. Accomplishment

• On the Spot award at TCS for participating in AI project for auto-recommendation system of memolines.

Contact this candidate