Sanway Sarkar

Project: Secure Payment Gateway Integration

In this project, we developed a robust and secure payment gateway integration system. Our goal was to seamlessly connect our e-commerce platforms with various payment providers, ensuring smooth and reliable transactions for users.

Key Aspects:

• Design and Implementation: We meticulously designed and implemented the payment gateway, adhering to industry standards and security best practices.
• Error Handling and Logging: Comprehensive error handling and detailed logging ensured transparency and ease of troubleshooting.

Technology Stack:

• Java: The backend services were developed using Java, providing scalability and performance.
• Spring Boot: We leveraged Spring Boot for rapid development, dependency management, and RESTful API creation.
• Payment Gateways (BarcleyCard): We integrated with leading payment providers to facilitate transactions.
• Database : Data persistence and transaction records were managed in a reliable database.

Objective:

Global E-Invoicing, our pioneering pilot product, was launched in 2020 in India. Since then, it has gained widespread adoption across multiple countries as a reliable solution for tax filing with government authorities. Our platform is the preferred choice for numerous Fortune 500 companies, both domestically and internationally.

Responsibilities:

• Design and Architecture: I played a pivotal role in shaping the design and architecture of Global E-Invoicing. This involved creating a robust backend system, ensuring seamless data flow, and optimizing performance.
• Code Implementation: Leveraging Java and Spring Boot, I meticulously implemented critical features, adhering to best practices and industry standards.
• Deployment and Scalability: Over a 48-month period, I oversaw the deployment of Global E-Invoicing, ensuring its availability, scalability, and reliability.
• Technology Stack: Our solution leverages a powerful technology stack, including Java, Spring Boot, Microservices, Angular, Kafka, Azure Event Hub, and Azure Service Bus

Objective and Role: Our primary objective in this initiative was to transition an existing Unix and C++ based project to a Microservices architecture. Specifically, we focused on the payments module within a banking context. As part of this role, I was responsible for design, code implementation and integration test cases.

Communication and Message Handling: The communication between the backend application and the SWIFT application occurred through message-based protocols. We utilized either IBM MQ or Kafka for this purpose. The types of messages we managed included Inbound, Outbound, and ACK (acknowledgment) messages.

Project Duration and Technology Stack: The entire initiative spanned 15 months. Our technology stack included Java, Spring Boot, Spring Integration, IBM MQ, Kafka, Oracle, Jenkins, Git, Maven, Sonar, Veracode, and JUnit.

Objective and Role

In this role, I was tasked with providing real-time support to vessels arriving at sea and river ports in India. The Port Operations Management System (POMS) that I worked on is seamlessly integrated with various critical systems, including Customs of India, the International Port Association, Port Community System, and the Finance System of India.

Responsibilities:

• Design and Implementation: I played a pivotal role in designing and implementing the POMS. This involved creating robust backend services, ensuring data integrity, and optimizing performance for real-time vessel tracking and management.
• Project Duration and Technology Stack: The entire
  initiative spanned 23 months. Our technology stack
  included Java, Spring Boot, Kafka, Oracle, Git, Maven.