Gade Suresh
System Engineer
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About
Mainframe Engineer with 4 years of experience supporting and enhancing enterprise IBM z/OS applications in the banking domain. Strong hands-on expertise in COBOL, JCL, DB2, IMS, and CICS, with experience across production support, batch processing, application enhancements, testing, and automation. Proven ability to resolve incidents, perform root cause analysis, fix defects, and support stable application delivery across the full mainframe application lifecycle.
Experience
Mainframe Engineer | Client: Lloyds Banking Group at Tata Consultancy Services (TCS) (2022-03 – Present)
Supported and enhanced Corporate Finance and Annuities applications running on IBM Mainframe (z/OS) in a regulated banking environment.
- Supported and enhanced Corporate Finance and Annuities applications running on IBM Mainframe (z/OS)
- Worked across production support, development, and testing activities in a regulated banking environment
- Monitored and managed end-to-end batch cycles, including job execution, restarts, dependency checks, and issue resolution
- Analyzed and resolved P1/P2 production incidents, ensuring minimal impact to business operations
- Performed root cause analysis and implemented permanent fixes for recurring batch and application issues
- Developed and modified COBOL programs and JCL to support defect fixes and business logic changes
- Performed unit testing, batch validation, and data verification for application changes
- Built automation using JCL and Easytrieve to reduce manual operational effort
- Supported production deployments using Endevor and performed post-release validation
- Worked with DB2 and IMS databases for data analysis, validation, and issue resolution
- Collaborated with developers, testers, DBAs, and business users across support and release cycles
- Created and maintained support documentation and runbooks for applications and batch processes
Education
B.Tech in Electrical & Electronics Engineering – SR Engineering College (2016-08 – 2020-11)
MPC(10+2) – SR Junior College (2014-08 – 2016-04)
SSC – ZPHS (2013-07 – 2014-04)
