Hemant Vikram Shelar
Pune
Summary
Experienced Java/J2EE Developer with 3.10 years of expertise in designing, developing, and deploying enterprise-level applications across fintech and gaming domains. Proficient in Spring Boot, Hibernate, RESTful/SOAP web services, and Angular. Proven track record of delivering high-performance payment processing systems and scalable microservices architectures with measurable business impact.
Overview
4
4
years of professional experience
1
1
Certification
Work History
Java/J2EE Developer
Mphatek Systems
06.2025 - 03.2026
- Developed and maintained payment gateway APIs using Spring Boot and RESTful web services with 99.8% uptime
- Implemented secure payment processing modules integrating webhook notifications from multiple payment providers (Telr, PayBy, CCAvenue) using industry-standard encryption and PCI-DSS compliance protocols
- Designed and developed microservices architecture for transaction management, merchant services, and payment reconciliation using Spring Boot and Hibernate JPA
- Built real-time payment notification system using webhooks and message queues (RabbitMQ), reducing transaction status latency by 60%
- Implemented webhook handlers for Telr, PayBy, and CCAvenue payment gateways to process payment callbacks, transaction updates, and settlement notifications
- Implemented multi-currency support and currency conversion services with real-time exchange rate integration
- Developed merchant onboarding portal using Angular 14, enabling self-service registration and reducing onboarding time by 45%
- Created comprehensive payment analytics dashboard with real-time transaction monitoring, fraud detection alerts, and settlement reports
- Optimized database queries and implemented caching strategies using Redis, improving API response time by 40%
- Implemented automated payment reconciliation workflows, reducing manual intervention by 70% and improving accuracy to 99.5%
- Conducted code reviews, mentored junior developers, and established coding standards for the fintech team
- Omnispay is a comprehensive payment processing platform that facilitates secure digital transactions, multi-currency payments, merchant onboarding, and real-time payment reconciliation for fintech clients across multiple channels.
- Technologies Used: Spring Boot, Spring MVC, Hibernate JPA, RESTful APIs, Webhooks (Telr, PayBy, CCAvenue), Angular 14, MySQL, Redis, RabbitMQ, JUnit, Mockito, Maven, Git, Docker, Jenkins, Swagger, Postman
Java/J2EE Developer
Zensar Technologies
01.2022 - 12.2024
- Designed, developed, and maintained Java applications using Spring Boot and Spring MVC architecture
- Developed front-end UI using Angular for user registration, login, password update, session management, and user profile features
- Built RESTful web services for authentication, authorization, and user account management APIs
- Implemented microservices architecture, enhancing system scalability and maintainability
- Developed service layer and repository patterns using Hibernate JPA for database operations
- Created dynamic views using JSP and JSTL tags with Spring MVC controllers
- Optimized database queries and application performance, reducing response time by 30%
- Automated unit testing with JUnit, increasing test coverage from 75% to 95%
- Reduced account creation time by 25% through service logic optimization
- Achieved 99.9% API uptime by streamlining deployment pipelines
- Designed reusable Spring MVC templates, reducing development time for new features by 40%
- Account API handles core functionality of the gaming platform's back-end, including user account creation, authentication, authorization, password management, session management, and user profile services for gaming systems.
- Technologies Used: Core Java, Spring Boot, Spring MVC, Hibernate JPA, Angular, JSP, Servlets, RESTful/SOAP Web Services, MySQL, JUnit, Maven, Eclipse/IntelliJ IDEA, Git
Education
Bachelor of Engineering - Computer Science
Pune University
01.2021
Skills
- Java
- SQL
- Spring Boot
- Spring MVC
- Hibernate
- Angular
- JSP
- Servlets
- RESTful APIs
- SOAP Web Services
- Webhooks
- Telr
- PayBy
- CCAvenue
- MySQL
- Maven
- Git
- Docker
- Jenkins
- JUnit
Certification
Java Spring Boot Development Certification, Pankaj Sir Academy, Bengaluru
Disclaimer
All the above information is true to the best of my knowledge.
Timeline
Java/J2EE Developer
Mphatek Systems
06.2025 - 03.2026
Java/J2EE Developer
Zensar Technologies
01.2022 - 12.2024
Bachelor of Engineering - Computer Science
Pune University