• Utilized Python to develop and maintain a suite of data processing and automation scripts, streamlining workflows and increasing data processing speed by 30%.• Spearheaded the development of highly interactive single-page applications (SPA) using ReactJS, ensuring seamless user navigation and dynamic content updates.• Developed and deployed a robust claims processing feature leveraging Django, handling exports, batch imports, and automated reporting, improving process efficiency by 20%.• Engineered a Python-based API integrated with Amazon SQS to manage bulk email notifications, such as balance and eligibility updates, achieving a 95% reduction in manual notification handling.• Built scalable microservices architecture using Django and SQLAlchemy for payment processing, streamlining transaction recording, and real-time balance updates via RESTful APIs.• Designed and implemented a performance dashboard using Dynatrace to monitor and optimize application performance, resulting in a 30% reduction in downtime.• Collaborated in Agile SCRUM teams, managing bi-weekly sprint deliveries and adapting to frequently changing project requirements.• Collaborated on a hybrid architecture using Golang for high-concurrency tasks and Python for machine learning model integration, improving overall system scalability and predictive analytics accuracy by 20%.• Enhanced real-time logging and monitoring by developing custom Python scripts for log aggregation and integrating with Splunk for analytics, leading to a 15% increase in system reliability.• Automated CI/CD pipelines using Jenkins and Spinnaker, streamlining the build, test, and deployment process by 40%.Environment: Python, JavaScript, Django, ReactJS, SQLAlchemy, MySQL, Amazon SQS, Scikit-Learn, TensorFlow, Pandas, Matplotlib, Log4j, Splunk, Dynatrace Jenkins, Spinnaker, AWS (CodeArtifact, SQS, other AWS services), Agile (SCRUM), RESTful APIs, SCRUM meetings, bi-weekly sprint deliveries.

• Designed and developed a scalable Inventory Management System using Java and Spring Boot, handling 1000+ stock management operations, order fulfillment, and reports per day while adhering to industry best practices and design patterns.• Engineered RESTful APIs with Spring MVC and Spring Data JPA to enable seamless communication between the front-end and back-end systems, supporting CRUD operations for efficient data manipulation.• Developed and maintained Microservices based on RESTful API architecture, leveraging Spring Boot and Spring MVC frameworks.• Designed and implemented business components using Spring Boot, Spring Dependency Injection (Core), Spring AOP, and Spring Annotations to ensure modular and scalable application architecture.• Utilized Spring AOP and JDBC module features for efficient data persistence to PostgreSQL databases, enhancing application performance and reliability.• Implemented Spring Security for robust authentication and authorization, protecting the system from unauthorized access and ensuring data confidentiality and integrity, preventing 1,000+ unauthorized access attempts.• Implemented HTTP methods to retrieve data from REST APIs and dynamically update pages, improving user interaction and data accessibility.• Engineered highly scalable and fault-tolerant Microservices using auto-scaling techniques and disaster recovery strategies.• Implemented application-level persistence using Hibernate within the Spring framework, ensuring robust data management and integrity.• Leveraged Java 1.8 features including Lambda expressions, advanced for-each loops, and Streams to optimize code readability and performance.• Configured connection pools and established efficient connections with PostgreSQL databases, developing stored procedures and optimized SQL queries for data manipulation and retrieval.

• Migrated from Struts Framework to Spring MVC architecture using Spring, JSP, and Java beans, developing a services-based architecture with Hibernate ORM and Spring MVC Framework.• Designed and implemented Controller classes, Business Layer, and DAO Classes using Spring Framework, ensuring modular and scalable application design.• Integrated Spring Dependency Injection across different application layers and migrated the Persistence layer from simple DAO to Spring/Hibernate for enhanced database operations.• Developed PL/SQL in the Data Access Layer to meet project requirements, optimizing data retrieval and manipulation processes.• Utilized frameworks like Karma and Jasmine for implementing Test Driven Development (TDD) and Behavior Driven Development (BDD), ensuring high code quality and reliability.• Implemented integration of Struts Action classes in the Presentation Tier and utilized Struts Tiles Framework for designing the application layout.• Leveraged JavaScript extensively to create interactive, speedy, and functional user interfaces, enhancing user experience.• Developed Struts Action Forms and Action Classes to control application flow and employed Struts and JavaScript Validation framework for form validation and data integrity.• Used Spring and Hibernate modules as Object-Relational mapping tools for efficient back-end operations over SQL databases.• Participated in the Code Review Team, contributing to the stability and efficiency of project implementations through collaborative code reviews.• Wrote JUnit test cases and conducted unit and integration testing of applications to ensure robust functionality and performance.• Configured projects on the Weblogic application server, ensuring seamless deployment and operation of enterprise applications.