Amazon Kalimuthu

GRICS is the modern micro-service architecture implementation of GRID in Java. The Grid brings to life Powercloud's next strategic business area: a comprehensive and fexible billing solution for the energy market roles grid operator and metering system operator.The grid system is developed within the TAP program (Thüga- Abrechnungs platform) in which powercloud provides the billing back-end for the market roles retail, grid and metering.

• Developed Restful micro-services using Spring Boot and JPA2, supporting data transactions with MySQL and interfacing with front-end applications in React.
• Implemented asynchronous micro-services communication via RabbitMQ, reducing system latency by 20%.
• Enhanced deployment effciency by implementing Docker and AWS solutions, leading to a 30% improvement in release cycles

Multi Language Document Generation System that helps CITI to replace legacy document maintenance templates usually in word by an application where users can create their own templates of the documents, generally PDFs.

• Led the design and integration of a multi-language document generation system for Citi, replacing legacy templates and improving document creation speed by 40%
• Created and maintained REST APIs for SQL Server database interactions, using Spring Boot to streamline back-end processes
• Coordinated Git version control and implemented CI/CD pipelines with TeamCity, ensuring reliable deployment across environments

Risk and HUB The platform which is available to on-boarding buyer fnance companies and seller fnancing companies through the Salesforce. Once those companies are boarded through a salesperson in Salesforce that information is shared to give the access of a particular company over HUB which is the customer using the tool. After that normally a user can create the trade between themselves and MODIFI.

• Developed scalable microservices to support onboarding and trading functions within a finance platform, using Postgres and Kafka for efficient data handling.
• Reduced deployment overhead and improved portability of services by adopting Docker and AWS solutions.

Risk and Fraud Management System Risk and Fraud management services are combinations of multiple services, assigned to the merchant account. Those RFS involve the payment details done by the customer with various possibilities of source credit card, Debit card, Giro pay etc. Based on the transaction information the Risk Engine processors calculate reliability score and share it with the merchant to take the decision on the payment.

• Develop Java Restful Micro-service service that communicates with MySQL DB in the back-end and returns JSON format data to other payment applications.
• Using KAFKA to communicate asynchronously between the micro-services.
• High quality software for multiple modules with cutting-edge technologies delivered
• Implementing End-to-end solutions, which gathered from Business analysts and Architects

Central Order Management Central Order Management is the heart of the order management system, which controls the order fow of the postpaid SIM in the O2 order. This life cycle which consists of OSB and OSM that controls the order fow from the external systems like Salcus, Tde, SAS, Piranha and Billing adapter. OSB is a service bus that delegates the order to the outbound systems to make the orchestration fulfllment. OSM is the middle layer, which consists of the business logic to convert the order fow and helps for the successful delegation.

• Provided technical solutions for SOA-based business requirements, enhancing service fow for Telefonica's Central Order Management.
• Developed OSB and OSM services to streamline postpaid SIM ordering, ensuring accurate orchestration and delegation of processes.

Operation on Launched Vehicles OLV is the internal application, which is useful to work on sold vehicles. Those vehicle owners can fle an issue to get service on their needs. Renault service system takes those complaints and sends them to DB. OLV analyzes the nature of tickets raised directly from the customers as well as from the service centers on behalf of customers. Based on the analysis OLV generates the resolve path and assigns the ticket to the appropriate section to handle it. In addition, OLV saves the resolving operation for its future analysis.

• Led a team in developing the Operation on Launched Vehicles (OLV) application, facilitating customer service requests and service record management
• Managed requirement gathering, sprint planning, and team coordination, ensuring timely and efficient project delivery
• Operation on Launched Vehicles OLV is the internal application, which is useful to work on sold vehicles