Mahima Sapra

Seasoned Software Development Engineer with 5+ years of expertise in Java, Spring Boot, Microservices. Specializes in end-to-end development, merging technical proficiency with a strong understanding of Algorithms and Data Structures. Proven Agile contributor excelling in collaborative efforts, consistently delivering innovative, high-quality solutions within challenging timelines.

1. MARS - Modern Account Receivable System

• MARS is a high-scale enterprise receivables and transaction processing platform responsible for handling account receivables, posting, billing, transaction orchestration, servicing APIs, caching, downstream integrations, and failover management for millions of card members globally.
• Contributed to migration of legacy Gateway services to the Global Account Gateway using event-driven architecture and Reactive Programming (Project Reactor/Mono-Flux based approach).
• Wrote regression test cases and automated Cucumber test scenarios for validating end-to-end business flows and ensuring application stability.

Tools and Technologies used

Java, Spring Boot, REST APIs, Microservices, Kafka, Reactive Programming, Event-Driven Architecture, Caching, PostgresDB, Docker

2. GCF - Global Commercial Fulfilment

• Developed a multi-market card registration platform for American Express using Spring Boot microservices and React, supporting country, region, and market-level registration workflows.
• Built scalable and secure RESTful APIs for card registration, validation, and hierarchy-based account processing across multiple US markets.
• Worked on backend microservices architecture with focus on modular design, event-driven communication, and reactive programming.
• Integrated market-specific business validations and support for multiple card types to handle complex registration requirements.

Tools and Technologies Used

Java17, Spring Boot, Microservices, Hibernate, PostgreSQL