To ensure high availability in various crash scenarios, different NoSQL database systems and cluster configurations are tested, evaluated, and troubleshooted.· Applied J2EE standard design patterns for code reuse, including Factory, DAO, Singleton, Observable, and Façade.· Designed and implemented a real-time, multi-threaded, Java-based payment processing system.· Applied fault tolerance and resilience patterns such as circuit breakers and retries using frameworks like Netflix Hystrix or resilience4j, enhancing the robustness of microservices.· Created distributed tracing and monitoring tools, such as Prometheus and Spring Cloud Sleuth, to facilitate efficient microservices troubleshooting and observability.

• Created server-side business logic for different asset/equity ratios, portfolios, and stocks using Core Java collections and generics.• Developed an automation tool to group and release production-ready Blockchain scripts.• Created Proficient in backentables in Hive using the Scala API and accessed the Parquet data using Spark and Spark SQL.• Using JPA and Hibernate, Object Relational Mapping (ORM) was implemented.• Developed Java APIs to get and analyze data from NoSQL databases, such as Cassandra and HBase.• Scaled distributed systems and microservices with Simple Queue Service (SQS).• Used Spring MVC, Spring Boot, and Spring Cloud to develop microservices.• A great deal of expertise with the JUnit Test Driven Development (TDD) framework.• Created and implemented Scala and Spark code in a GCP Hadoop cluster.

analysts.• The business application's backend Java development and user interface were developed using the agile methodology.• Involved in creating Java, J2EE, the Apache Struts framework, and the Spring (MVC) framework for client/server and N-tier web applications.• Set up many interceptors utilizing Spring AOP for logging, security, audit logging (database), and transaction management.• Added the newest features to HTML5 and CSS3, such as the ability to handle multimedia files, create different effects, shade, and create 2D and 3D animation.• Made use of the AngularJS framework to connect JavaScript objects (models) and HTML templates (views). created complicated SQL queries and HQL routines for the login module.• Added support for stack traces, debuggers, warnings, errors, and messages throughout the code by implementing the Log4j API.

• Participates in the development of functional specifications, testing, and coding for enhanced applications. Working as a team, conducting code reviews. • AWS SAM, the Serverless Framework, and Terraform are used in serverless architectures.• Using managed services data suitable for the anticipated data flow and scaling needs, an event-driven proof of concept serverless architecture was created.It outlined procedures for using the serverless architecture for application auditing, performance testing, and failure management.• Analyze Snowflake Design factors for any modifications to the application.• Create the snowflake's logical and physical data model in accordance with the necessary modifications.• Developed Snowflakes, RedShift, and Oracle databases.