• Involved in all phases of software development, including gathering requirements, service design, code implementation, testing, deployment and maintenance.

• Extensively made use of Java 8 features like Predicates, Functional Interfaces and Lambda Expressions, Method References and Stream API for bulk data operations on Collections.

• Built and used RPC services using Amazon internal RPC framework.

• Implemented application with Spring Core/IOC and Spring MVC.

• Designed and developed the front-end pages using TypeScript, React and Redux.

• Used Log4j framework to log/track application. Set alarms using Amazon internal monitor tool.

• Developed JUnit test cases for unit testing, along with EasyMock and Mockito frameworks.

• Responsible to test performance of all services and scale them properly for high volume in the fourth quarter (holiday season).

• Used Git for source control and version management of all codes and resources.

• Provided high-quality documentation about technical details and implemented APIs.

• Followed the Agile methodology and Scrum to manage the full life cycle development.

• Set up Spring Security LDAP to authenticate and authorize users for a full stack application.

• Developed Junit test cases along with Mockito, PowerMock, AssertJ frameworks and Spring integration testing support.

• Utilized Hibernate to map between Java objects and Microsoft SQL Server tables, and to communicate with data layer.

• Responsible to write SQL and JPQL queries to save and retrieve data like order details, update information, inventory information.

• Configured and explored RabbitMQ to establish asynchronous, durable and reliable message queue.

• Monitored RabbitMQ with New Relic and set alerts for memory and disk usage.

• Developed a Web Service (SOAP, WSDL) Client to consume the SOAP services.

• Configured two-way SSL handshake for Web Service client with self-signed certificates utilizing OpenSSL.

• Utilized Kong gateway and Konga UI to secure (OAuth 2.0 plugin) and load-balance the APIs.

• Explored JMeter for load testing and VisualVM for performance analysis.

• Used Log4j framework and Loggly to log/track application.

• Configured Maven repositories and scheduled projects in TFS for continuous integration/continuous deployment (CI/CD).

• Used Git for source control and version management of all codes and resources.

• Served as Teaching Assistant for Introduction to Networks and Protocols.

• Tutored students face-to-face in office hours (two hours per week) and in recitation classes.

• Assisted teacher to check examination paper and performed many supportive tasks.

• Highly proficient with networks and protocols like TCP, UDP, SSL, leaky bucket policy and so on.