Shoumya داسغوبتا

• Architected a multi-entity cross-border payment platform processing transactions across UAE (EBI), Egypt (EGP),
and India (IND), with a scalable client-entity hierarchy model.
• Designed REST APIs to orchestrate the complete payment lifecycle: Application Layer → Bawaba System →
Payment Hub → Finacle Core Banking.
• Built FastAPI microservices (Python) handling payment validation, cross-entity routing logic, and real-time
transaction state management, integrating seamlessly with Spring Boot orchestration layer and Kafka event
streams.
• Developed Next.js payment initiation portal with App Router, replacing legacy React frontend to enable bank
operators to submit and manage cross-border transactions across all three entities from a single unified interface.
• Implemented server-side data fetching in Next.js with getServerSideProps for real-time payment status,
integrated Kafka-driven webhooks for status updates, and built reusable Server Components for transaction lists
reducing client-side payload by 35%.
• Engineered FastAPI async request handlers for payment validation, enabling concurrent processing of high
volume transaction batches without blocking I/O operations, improving throughput by 40%.
• Implemented amount-level field encryption before database persistence, ensuring regulatory compliance and
data security standards.
• Enforced full request payload persistence for end-to-end audit traceability, strengthening compliance posture
across
• Built a Next.js migration monitoring dashboard with dynamic server-side data fetching and real-time Kafka
message consumption, providing the ops team visibility into batch processing status without manual log
inspection.
• Implemented Kafka consumers in both FastAPI and Node.js to replay historical transaction events and validate
migrated records against source-of-truth checksums.

• Built a high-performance bulk billing data ingestion engine processing 25, 000+ records per
batch, integrated with Visas VPDS ecosystem.
• Implemented intelligent record classification (Insert / Update / Soft Delete) with field-level
validation and special character sanitization before DB persistence.
• Designed transactional rollback mechanism guaranteeing zero partial commits on failure,
preserving data consistency at scale.
• Optimized MongoDB bulk operations for high throughput, reducing manual billing data
processing time by 90%+. Built automated Waiver Number Generation and PDF generation with stakeholder distribution,
eliminating manual intervention in waiver approvals.
• Designed MongoDB schema optimized for waiver tracking and immutable audit logs, improving
operational transparency and compliance.

Develop & maintain banking applications. On the technology side inam working as a full stack engineer covering Spring MVC, Spring boot, and Angular, React, MongoDB.

I lead & guide a team and handle customer interactions Also involved in project planning and system design.

Handle client interactions, gather requirements, Suggest and apply scalable architecture techniques as required for the client business and look into maintaining a high customer satisfaction.

Research for any AI based API can be used for application architecture.

Research for clients existing legacy applications and identify areas to improve and make them maintainable

Create docker and kubernetes files to be hosted in AWS cloud

Identify and use the best security algorithm for authentication and Authorization

Use advance features of Angular, Web workers, graphql in implementing maintable and well managed code base.

Achievements
Improved client applications productivity through code performance tuning and using modern development approach and keeping the architecture scalable

Tech stack is Core Java, Spring boot, Angular, React, Nodejs, MongoDB, SQL, Javascript.

Work closely with architects, gather requirements and involve in lead development of customized software applications for the Web & Mobile.

Tech Stack - Angular, Nodejs, SQL

Other tasks include improving javascript performance by using correct design patterns

Also involved in leading a team of 5 people

Architected and Created a e-learning player in javascript/html which can launch and play custom e-learning courses which would run on scorm cloud, Moodle e-learning systems

Develop digital admission forms for colleges/universities

Develop digital payment gateway integration for handling online fees process.

Lead a team of 5 people

Tech Stack - Javascript, Html5, Css

Understand requirements and build user manuals for software