Arnab Saha

Project Name: Elevator RMS

Brief description: This project is responsible for performing remote elevator maintenance by the maintenance person. It is also responsible for maintaining health checks of elevator RMU, report generations and tracking of maintenance person and background services.

Roles and Responsibilities:

• Involved in implementation of several micro services using Spring Boot for communication between RMU and web application.
• Leveraged API Gateway Service to implement features like IP filtering and Routing.
• Implemented robust user registration and logging processes utilizing JWT authentication and authorization to reduce potential data breaches by 45 %, ensuring data security and privacy.
• Designed services with proper real time data processing and monitoring using Apache Kafka.
• Developed and implemented RESTful APIs to seamlessly connect RMS server and frontend application.
• Developed and integrated dynamic and interactive user interfaces using React JS and Material UI .
• Experienced in writing HTTP request to backend server using Axios HTTP library.

Technologies: Java, Spring Boot, Spring Cloud , Spring Security, Apache Kafka , MS SQL Server , REST API , React JS

Project Name: Elevator Web Client Application

Brief description: The main purpose of this application is to manage and transfer the Elevators and Escalators data such as Operation, Schedule, Simulation and Area wise information. This application consists of frontend user interface and a web server that communicates via web socket.

Roles and Responsibilities:

• Contributed in designing DB micro service by implementing service layer and DAO layer.
• Worked extensively in developing socket service to handle real time data transfer from Server through socket.
• Utilized Spring MVC framework to implement design patterns like IOC, Spring DAO, DTO, ORM Mappings.
• Prepare detailed design documents of each screen.
• Debugging issues if any and find out root cause of that and resolve issues.
• Used Log4J for logging and debugging and JUnit for testing.

Technologies: Spring MVC, Spring Boot, JWT, RESTful Web Services, React JS

Project Name: Interface Application

Brief description: This project is responsible for communicating between the Web Server and the LCD Server of Web Client Application through socket programming. It contains mapper functions ,which performs serialization and deserialization of the data.

Roles and Responsibilities:

• Implemented a back-end interface application to promote Server-Client communication using Socket Programming in C++.
• Enhanced code quality and readability with added functionalities to meet client demands.
• Performed detailed documentation and generated use case diagrams, sequence diagrams, class diagrams using Star UML.

Technologies: Java , C++ , Socket Programming , Multithreading