ABESH ROY
Bangalore
Summary
Accomplished software developer with 10+ years of experience delivering enterprise solutions across financial and large-scale platforms. Currently driving modernization initiatives at JPMorgan Chase, crafting responsive front-end applications using React, implementing Spring Boot microservices for APIs, and leveraging AWS cloud services with Terraform to enable scalable, cloud-ready architectures, and legacy system data integration. Experienced in IBM Mainframe technologies (COBOL, DB2) for the healthcare and automobile domains. Proven ability to rapidly adopt new technologies, collaborate across cross-functional teams, and deliver high-quality, resilient, and scalable solutions.
Overview
12
12
years of professional experience
1
1
Certification
Work History
SDE-2
JPMorgan Chase
07.2023 - Current
- Led the migration of legacy application to modern tech stack by building responsive UI from the scratch using ReactJS, significantly improving user experience and code maintainability.
- Designed and developed RESTful microservices using Java Spring Boot, enabling seamless integration with the UI and improving data flow across systems.
- Enhanced existing legacy applications by implementing new features aligned with evolving business requirements to improve usability in key functional areas.
- Created and managed JIRA stories based on application UI and service components, contributing to effective sprint planning and delivery.
- Supported team onboarding by facilitating knowledge transfer and assisting new joiners with local setup and understanding of legacy systems.
- Gained hands-on experience with AWS cloud services and infrastructure provisioning using Terraform as part of application modernization and migration initiatives.
- Contributed to proof-of-concept (POC) development for new services involving database design and AWS-based architectures.
Module Lead - System
Mphasis
12.2021 - 06.2023
- Engineered legacy application migration by building a responsive and scalable UI from scratch using React, enhancing user satisfaction and improved maintainability.
- Designed and deployed microservice REST APIs using Java Spring Boot to decouple the frontend and backend layers, reducing system dependencies, and enhancing scalability.
- Enhanced legacy application by implementing new functionality, addressing user feedback to improve efficiency by 50%.
- Spearheaded sprint planning and coordinated JIRA story creation by aligning UI and service-level deliverables with cross-functional teams.
- Provided knowledge transfer on the legacy application architecture and workflows to team members for local setup as well as supporting new onboarding.
- Contributed to cloud modernization initiatives by participating in AWS architecture discussions and building POC solutions integrating REST APIs, cloud services, databases, and infrastructure provisioning using Terraform.
Senior Software Engineer (Java & Mainframe)
Interra Information Technologies
02.2018 - 12.2021
- Streamlined and enhanced web application management for Mazda’s Sales Operations and Marketing/CRM, boosting user engagement and addressing operational inefficiencies.
- Led a team of 5 in resolving integration challenges between mainframe and Java, improving defect resolution efficiency in SalesOps modules.
- Involved in 50+ dealer support tickets, production batch job failures, and Java batch issues, leading to a 90% increase in uptime and 100% service efficiency improvement.
- Reduced Tidal Automation and FTP batch job downtime by X% through proactive monitoring and quick resolution, in collaboration with MNAO managers.
- Analyzed project requirements, estimated efforts, and managed deliverables to achieve a % increase in on-time delivery.
- Spearheaded SDLC activities for new web enhancements, including design, unit testing, QA/UAT, and deployment—ensuring 100% business approval.
- Conducted UAT sessions and regular stakeholder meetings to ensure alignment, rapid issue resolution, and smooth signoffs.
- For Mainframe, designed and deployed COBOL modules across 3 regions (DEV, TEST & PROD), resolving performance and data handling issues related to DB2 and VSAM, achieving a 50% error reduction.
- Created technical design documents, unit test cases, and functional test scenarios to improve system clarity, functionality, and test coverage by 80%.
Programmer Analyst (Developer and Tester)
Cognizant Technology Solutions
03.2014 - 04.2017
- Analyzed requirements to develop a high-level design document, enhancing project clarity.
- Refined COBOL code for DB2 and VSAM modules, addressing performance issues, boosting efficiency.
- Faced deployment challenges across regions; streamlined the COBOL module integration, enhancing efficiency.
- Executed unit testing for a new COBOL module, addressing critical performance issues that improved functionality.
- Created technical design and unit test case documents to resolve integration challenges, enhancing system functionality.
- Developed functional test scenarios addressing quality assurance challenges, enhancing test coverage by 80%.
Education
B.Tech - Information Technology
West Bengal University of Technology (WBUT)
Kolkata,India06.2012
Skills
- Java (8, 11, 17)
- ReactJS
- Spring Boot
- Microservices architecture
- AWS cloud services
- Unit testing and debugging
- Struts framework
- Spring MVC
- Hibernate ORM
- REST APIs
- Terraform
- HTML and CSS
- JSF framework
- Oracle
- MySQL
- IntelliJ and Eclipse
- Mainframe
Projects
Modernization, 2022-01-01, Present, Transformation of JPMorgan old legacy applications into modern version through more reliable and advanced technology as part of modernization project. Modernized a legacy application, addressing performance issues, leading to a 80% increase in user satisfaction. Mazda ADM (Application Development & Maintenance), 12/01/21, Mazda Motor Corps. is a Japanese automobile manufacturer and services company with its business spread out globally including USA and Interra Information Technology provides service for application development, enhancement, maintenance, and production support. Mazda AMS (Application Maintenance & Support), 11/01/19, Mazda Motor Corps. is a Japanese automobile manufacturer and services company with its business spread out globally including USA whereas Interra Information Technologies provides service to application development, enhancement, maintenance, and production support. ESHC POS (Point of Sale) Dev, 06/01/15, POS is an on-line pharmacy claim adjudication system.
Certification
Terraform Associate license - HashCorp Cloud Engineer, 2025
Timeline
SDE-2
JPMorgan Chase
07.2023 - Current
Module Lead - System
Mphasis
12.2021 - 06.2023
Senior Software Engineer (Java & Mainframe)
Interra Information Technologies
02.2018 - 12.2021
Programmer Analyst (Developer and Tester)
Cognizant Technology Solutions
03.2014 - 04.2017
B.Tech - Information Technology
West Bengal University of Technology (WBUT)