As a Full Stack Developer at AMEX, I led the development of a secure backend billing module, optimizing processes for over 47,000 banking customers and improving transaction processing speed by 30%. I managed the complete application lifecycle using ReactJS, Java, J2EE, and XML, reducing delivery timelines by 30% and enhancing customer satisfaction. My expertise in HTML, CSS, JavaScript, and responsive design, combined with ReactJS, Angular Flex Layout, and Bootstrap, significantly increased user engagement by over 150%. Additionally, I utilized Spring Framework modules to enhance system stability by 35% and secured over 500,000 banking transactions.I also managed server performance in a Unix environment, overseeing 150 servers and reducing performance issues by 30%. My optimization of Kafka’s message throughput enabled processing of 10,000 financial transactions per second with a 99% delivery success rate. I implemented rigorous testing using JUnit and Mockito, resulting in a 20% reduction in post-deployment bugs. Leveraging GitLab for version control and IntelliJ as the IDE improved collaboration and code management efficiency by 12%, ensuring seamless delivery of critical banking solutions.

I led the integration of Workday’s HCM (Human Capital Management) platform, enabling seamless payroll processing and employee management for over 100,000 users and improving operational efficiency. This integration enhanced the platform’s functionality, reliability, and security, handling millions of employee records and transactions. Additionally, I modernized outdated workforce analytics APIs to integrate with Workday’s advanced data analytics tools, resulting in a 12% improvement in data-driven decision-making and more accurate forecasting for HR and financial planning.I developed a custom employee referral program using Java and React, driving a 2,500% increase in employee engagement and contributing to exponential growth in talent acquisition and retention. I also engineered mobile applications for Android and iOS using React Native, improving employee engagement by 20% through easy access to HR services. In addition, I created responsive web and mobile applications with JavaScript, TypeScript, React, and React Native, boosting application reliability by 15%.I integrated various cloud-based storage services and databases for efficient data management across Workday’s enterprise applications and optimized CI/CD pipelines, reducing software deployment time by 50%. I deployed microservices using Spring Boot on cloud infrastructure, automated deployment with Azure DevOps and Jenkins, and streamlined project delivery using Agile methodologies, ensuring timely updates and enhancements to Workday's suite of HR, finance, and planning solutions.

I analyzed over 300 requirements from existing documentation, collaborating closely with Business Analysts (BAs) and Quality Analysts (QAs) to deliver optimal solutions. Working alongside six architects, I designed and implemented more than 20 technical solutions across various domains, driving product development for clients in industries such as healthcare, automotive, and finance. I enhanced an application using Servlets and JSP for the presentation layer, combined with JavaScript for client-side validations, resulting in a 30% improvement in user interface responsiveness and overall user experience.By leveraging Core Java technologies like Collections, Serialization, Annotations, and Exception Handling, along with Entity/Session Beans, I successfully upgraded Java applications for over 1.2 million users, boosting system reliability by 20% and performance by 25%. I engineered fault-tolerant services using JDBC and Hibernate, improving data retrieval efficiency by 33% and ensuring smooth communication between applications and databases. Additionally, I developed over 50 solutions and unit tests, ensuring compliance with industry standards and client-specific requirements.This work contributed to GlobalLogic's commitment to providing innovative and scalable solutions, streamlining product development processes for clients across various sectors and enhancing their digital transformation efforts.