Shyam Duvvapu

Software Engineer

Hyderabad, Telangana, India4 yrs experience

Key Highlights

  • Over 4 years of experience in Mainframe applications.
  • Expert in COBOL and DB2 with proven efficiency improvements.
  • Strong collaboration skills in Agile and Waterfall environments.
Stackforce AI infers this person is a Mainframe Software Engineer with expertise in Fintech applications.

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Skills

Core Skills

MainframeCobol

Other Skills

CICSDB2EndeavorFileaidGitHubIBM SPUFIISPFJCLTSOVSAMXpediter

About

A skilled Software Engineer with over 4+ years of experience in developing and maintaining Mainframe applications. Proficient in COBOL, DB2, VSAM, JCL, and CICS, with expertise in SDLC and documentation processes. Currently working with IBM on American Express projects, contributing to innovative solutions while enhancing team collaboration.

Experience

Sourceone technology solutions, inc

Mainframe Developer

Mar 2023Oct 2025 · 2 yrs 7 mos · Hyderabad, Telangana, India · Remote

  • - Developed and maintained COBOL programs for financial applications, ensuring accurate processing of large-scale batch jobs and online transactions. - Created and optimized JCL scripts to automate batch processing workflows, reducing job execution time by 25%. - Designed and implemented DB2 database queries and stored procedures to support business applications, improving data retrieval efficiency. - Configured and managed CICS transactions for real-time processing, ensuring seamless customer interactions in banking systems. - Utilized VSAM files for efficient data storage and retrieval, implementing data integrity checks and recovery processes. - Performed troubleshooting and debugging of mainframe applications using TSO/ISPF, resolving production issues promptly. - Demonstrated strong understanding of z/OS system architecture, including job scheduling, dataset management, and system utilities. - Collaborated with cross-functional teams to analyze requirements, design solutions, and implement changes in a Waterfall and Agile environment. - Documented mainframe processes, including program specifications and job flows, to support knowledge sharing and compliance. - Ensured adherence to mainframe security standards, including RACF configuration and access control management.
COBOLDB2VSAMJCLCICSTSO+2

Atos syntel

Associate Consultant

Sep 2021Mar 2023 · 1 yr 6 mos · Chennai, Tamil Nadu, India · On-site

  • - Assisted in developing and testing COBOL programs for financial systems, contributing to a 20% improvement in processing efficiency. - Supported the creation and maintenance of JCL scripts for batch job execution, ensuring accurate scheduling and monitoring. - Worked with DB2 and VSAM to manage data storage and retrieval, supporting routine database maintenance tasks. - Participated in CICS transaction testing and debugging, ensuring reliable online transaction processing. - Collaborated with senior mainframe developers to analyze and resolve system issues, reducing downtime in production environments. - Gained hands-on experience with TSO/ISPF for editing, submitting, and monitoring mainframe jobs. - Contributed to documentation of mainframe application processes and job flows, enhancing team knowledge sharing. - Supported routine mainframe system maintenance, including dataset backups and performance monitoring.
COBOLDB2VSAMJCLCICSTSO+2

Education

SRKR Engineering College

Bachelor of Technology - BTech — Information Technology

Jun 2017Aug 2021

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