● Implemented Spring Validators, persistence layer, and service layer components using Spring/Hibernate API and Spring/Hibernate annotations. Extensively used Hibernate QL● Developed key services for authorization and authentication in Node server, where we used LDAP. Later migrated the authentication from LDAP to Ping Access-SSO (Single Sign On) Application.● Led the migration of legacy rules systems to Drools, achieving enhanced maintainability, performance, and scalability.● Wrote various types of Business rules in the .drl (drools file) and .ece (expectation files) using Drools rule engine for business decision making● Successfully transitioned rules from ‘Mind-Box’ to Drools (Red-Hat JBoss BRMS), facilitating improved rule processing times.● Proficiently optimized Drools rule sets to ensure optimal runtime performance, contributing to faster rule execution and application responsiveness.● Developed RESTful APIs for seamless integration of Drools-based decision-making logic into backend applications.● Utilized version control systems (e.g., Git) to manage and track Drools rules and related code changes.● Collaborated effectively with cross-functional teams, business analysts, and stakeholders to ensure accurate rule implementations.● Implemented Spring Cloud-Netflix ZUUL to build micro services for communication.

● Designed and developed Micro Services business components using Spring Boot.● Implemented the Project structure based on Spring MVC pattern using Spring Boot and persisted data to MongoDB using Spring Data.● Experienced in implementing the Node.js server-side code along with the Express framework to interact with MongoDB to store and retrieve data by using the Mongoose package.● Used MongoDB internal tools like Mongo Compass, Mongo Atlas Manager & Ops Manager, Cloud Manager etc.● Worked on MongoDB database concepts such as locking, transactions, indexes, Shading, replication, schema design and Node.js and Express.js to develop the relevant backend RESTful API.● Integrated external data sources and APIs to enhance rule accuracy and extend application capabilities.● Integrated the Drools and JBPM to application framework, which involved dynamic creation of knowledgebase and Knowledge session.● Collaborated with domain experts to capture and translate complex business rules int executable Drools rules.● Implemented rule performance monitoring mechanisms, leveraging tools like Apache Kafka to stream rule execution events.

● Worked on Lambda Expressions, Functional interfaces Stream API's, Time API, and Improvements on Collection, Concurrency, and IO improvements by using Java 8.● Developed and implemented Restful Web APIs, and exposes endpoints using HTTP methods like GET, PUT, POST and DELETE.● Implemented multi-threaded synchronization processes, with JMS queues for consumption of Asynchronous requests.● Implemented light weight WADL (Web application description Language) for better understanding of Rest based web services and its configuration.● Used multithreading for writing the collector parser and distributor process, which was getting real-time data from Zacks API in format of JSON, using multithreading improved the performance by a lot. Moreover, using concurrency package of collections made it thread safe.● Integrated Drools Rules Engine with middleware components, enabling seamless interaction with backend, and external systems.● Integrated JPA persistence using Hibernate to save the current state of the drools.● Worked with JBoss Drools for Business Rules processing.● Utilized Drools in combination with other technologies to orchestrate end-to-end business processes.● Implemented AngularJS Controllers to maintain each view data. Implemented Angular service calls using Angular Factory with Dependency Injection to prevent scope conflict commonly found with JavaScript.

• Designed and developed the application using Java, Spring Boot, Angular, and MySQL, resulting in a 50% reduction in loading time.• Managed project scope, timeline, and budget, resulting in a 30% increase in project efficiency.• Collaborated with cross-functional teams to identify and implement improvements to the application's features and functionalities, resulting in a 40% increase in user engagement• Conducted code reviews, mentored team members, and provided technical guidance to ensure high-quality code and adherence to best practices.• Interacted with the User Group to gather requirements.• Integrated RESTful APIs with third-party services such as Stripe, Twilio, and Google Maps.• Optimized Apache web server configuration for improved performance and security.• Actively involved in Drools migration from 5.3.1 to 5.3.1 rollup patch 3 and worked with Redhat.

• Interacted with the User Group to gather requirements.• Built and maintained several jQuery-based web applications using jQuery UI and jQuery Mobile.• Integrated RESTful APIs with third-party services such as Stripe, Twilio, and Google Maps.• Optimized Apache web server configuration for improved performance and security.• Utilized Linux/Unix command-line interface for server administration tasks.• Worked collaboratively with cross-functional teams to ensure the delivery of high-quality software products.• Participated in agile ceremonies such as daily stand-ups, sprint planning, and retrospective meetings.• Utilized Git for version control and collaborated with team members using GitHub.• Developed a React-based web application using Next.js and Redux.• Integrated a RESTful API with a third-party service to enable online payments.• Utilized Snowflake data warehousing technology to build and maintain data pipelines and perform data analysis.• Utilized Python programming to clean and manipulate data, perform statistical analysis, and generate reports.