1. Innovative Solution Architecture: Devised an innovative solution architecture using microservices, ensuring scalability and flexibility in adapting to evolving business needs.

2. Complex Business Logic Implementation: Successfully integrated Drools Engine to handle intricate business rules, enabling the application to make intelligent pricing decisions in real-time.

3. Seamless Data Management: Utilized MyBatis for efficient data mapping and management, optimizing interactions with the Oracle database for seamless data retrieval and storage.

4. Reliable Communication: Implemented Rabbit MQ for reliable message queuing, facilitating smooth communication between microservices and ensuring data consistency and integrity.

5. Secure User Experience: Employed Spring Security to establish robust authentication and authorization mechanisms, guaranteeing a secure user experience and safeguarding sensitive data.

6. User-Friendly Frontend: Collaborated with the frontend team to develop an intuitive Angular 12-based user interface, enhancing user experience and ensuring ease of navigation.
   

Key Contributions and Achievements:

1. Seamless Defect Reporting: Engineered an intuitive user interface on Angular 12, enabling users to effortlessly report defects on products, streamlining the claims process and enhancing user satisfaction.

2. Microservices Architecture: Implemented a scalable and resilient microservices architecture, ensuring the application's adaptability to fluctuating workloads and improving overall system performance.

3. Efficient Data Management: Utilized JPA for efficient management of data entities, optimizing interactions with the Oracle database. This ensured swift and accurate retrieval and storage of defect-related information.

4. Reliable Communication: Integrated Rabbit MQ for reliable asynchronous communication between microservices, enhancing system responsiveness and ensuring data integrity during high traffic periods.

5. Robust Testing: Implemented rigorous testing methodologies using JUnit and Mockito, ensuring the reliability and stability of the application under various scenarios.

6. Security Measures: Implemented Spring Security to establish a secure environment, ensuring authenticated and authorized access to sensitive defect-related data, thereby safeguarding the integrity of the claims process.

1. Technology Migration: Engineered the migration of the PUP project from a legacy mainframe system to a robust and scalable Web Application. The entire functionality was reimagined and implemented using Spring Boot and Spring JPA, ensuring a seamless transition and improved performance.

2. RESTful API Development: Designed and developed RESTful APIs tailored to the diverse modules of the project. These APIs were meticulously crafted to meet specific requirements, enhancing the project's flexibility and interoperability.

3. Mainframe Integration: Configured the existing Mainframe VSAM as the database source, pulling data through CICS transaction gateway. This integration facilitated a smooth flow of information between the legacy and modern components of the system.

4. User Interface Design: Developed intuitive and responsive user interfaces using Angular, HTML5, CSS3, and Bootstrap 4.5. These UI pages were optimized for user experience, ensuring seamless navigation and interaction.

5. Data Transformation: Implemented XML binding using Maven dependencies, converting Mainframe responses from XML to objects, and further transforming these objects into JSON format. This streamlined data processing and facilitated efficient communication between system components.

6. Test-Driven Development: Adopted a rigorous test-driven development (TDD) approach throughout the project. Implemented all components, including RESTful APIs and microservices, following TDD methodologies using JUnit. This approach ensured the reliability and stability of the application under various scenarios.

7. Microservices Architecture: Designed and developed microservices using Spring Boot, adhering to domain-driven design principles. This modular architecture enhanced system scalability, allowing seamless integration and deployment of individual components.

8. End-to-End Development: Involved in the entire software development life cycle, from initial design and development to integration, testing, troubleshooting, and debugging of embedded applications. This holistic approach ensured a cohesive and well-functioning system.