Application Support Mainframe Developer

Eppolu Narasimhulu ***************@*****.*** Page 1

Eppolu Narasimhulu

Chennai, Tamil Nadu-603103 +(91-964******* ***************@*****.*** LinkedIn GitHub SOFTWARE ENGINEER MAINFRAME DEVELOPER

COBOL CICS JCL REXX VSAM DB2

Dedicated Mainframe Developer and Technical Application Support Engineer with 3.6 years of experience in warehouse management and distribution. Passionate about modernizing and optimizing mainframe processes to enhance productivity. Skilled in design, database development, testing, and production implementation. Strong expertise in application performance optimization, identifying bottlenecks, and implementing scalable solutions. Proven ability to handle production support, incident resolution, and job failures under tight deadlines. PROFESSIONAL EXPERIENCE

Mainframe Developer – Sopra Steria India Ltd. Oct 2021 - Present Chennai

● Certified professional in COBOL, JCL, DB2, VSAM, and CICS with expertise in mainframe development and application support.

● Experienced in analyzing, designing, and coding programs, including developing CICS/COBOL programs from scratch and implementing small to medium-scale code changes.

● Debugging COBOL and CICS programs, identifying bugs, raising JIRA tickets with solutions, and implementing fixes.

● Proficient in mainframe tools such as TSO/ISPF, Batch and Online Intertest, DMOL, Endeavor, SDF2, SDSF.

● Collaborated with cross-functional teams to deliver project milestones 20% faster while maintaining high- quality code standards.

● Experienced in providing 24/7 on-call support, ensuring system stability and issue resolution. Skilled in using Splunk, JIRA, Postman, and Kafka with strong Agile methodology experience. EDUCATION

Master of Computer Applications (MCA) – Computer Science 2022-2024 Jawaharlal Nehru Technological University, Anantapur 83% Bachelor of Science (B.Sc.) – Statistics and Computer Science 2017-2020 Rayalaseema University, Kurnool 89%

PROFESSIONAL SKILLS

● Programming Languages: Cobol, CICS, JCL, REXX, Java.

● Databases: DB2, VSAM, MySQL

● Version Control: Endeavor, GitHub

● Testing Tools: TSO/ISPF, SDF2, Batch and Online Intertest.

● Frontend Technologies: HTML, CSS, Java Script.

● Backend Technologies: Spring Boot, Hibernate, RESTful APIs, Microservices

● Other Tools: Eclipse, STS, Postman, Kafka, JIRA

Eppolu Narasimhulu ***************@*****.*** Page 2 PROJECTS

TESCO Retail Operations - (Jan 2022 – Present)

Technologies: CICS, COBOL, VSAM, DB2, REXX, JCL

● As part of the Tesco Distribution team, managed the DENVER application, responsible for overseeing warehouse distribution operations and ensuring seamless logistics management.

● Actively involved in enhancing applications to improve performance, functionality, and user experience, consistently exceeding client expectations and business needs.

● Analyze and fix service requests based on business requirements. To debug the code in case any defect arises and give the proper code fix to be deployed in production.

● Responsible for conducting daily health checks of applications and proactively managing alerts to ensure system stability and performance.

● Responsible for maintaining servers for various applications, including monthly patching, performance monitoring, and application installations such as New Relic and Qualys, ensuring system efficiency and security.

Travel Booking System

Technologies: Spring Boot Web, Spring Boot JPA, Spring Boot Security, Thymeleaf, Lombok, MySQL database.

● Developed a menu-driven Java application using Collection API, enabling admin registration, account management, and journey planning with a user-friendly interface.

● Developed date validation, fare calculation with surge pricing & GST, rescheduling, and user account management with robust exception handling for an improved user experience. CERTIFICATIONS

Mainframe Training Oct 2021 to Jan 2022

AI for ALL June 2nd, 2024

Data Bricks – AI Basics June 14th, 2024

Java Spring Boot Aug 2024 to Feb 2025

ACHIVEMENTS & AWARDS

Spot Award FY2023 Q2

● Dedication to smart work, multiplies automation and new ideas to reduce the manual efforts. Pinnacle Award FY2024 Q3

● For demonstrating exceptional performance and contributing to the success of the team, going above and beyond what was expected.

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