Sekhar S

About Sekhar S

Results-driven Senior Java Full Stack Developer with 10+ years of experience designing…

Experience

1. Sr Full Stack Java Developer

   Fiserv

   Jun 2022 — Present · Alpharetta, GA, US

   Enhanced Scalability by implementing an event-driven architecture using reactive Java, enabling real-time processing for sales, inventory updates, and customer interactions, improving system responsiveness.• Accelerated Data Processing through optimized data pipelines on IBM Cloud and Azure, using IBM DataStage and Azure Databricks, reducing query time and enabling real-time analytics.• Increased API Efficiency by designing scalable RESTful APIs with Java, Node.js, and Swagger; developed reusable API frameworks that streamlined web application integration and reduced development time.• Enhanced User Experience by developing dynamic, responsive front-end interfaces using React, Angular, and Vue.js, leading to seamless data integration and real-time user interaction.• Optimized Data Operations by applying Java 8 and 11 features like lambda expressions and Stream API, facilitating faster data handling between the business layer and databases such as Oracle and Teradata.• Strengthened Code Quality with comprehensive testing using Karma, Jasmine, JUnit, and TestNG, resulting in high-quality, maintainable code and reduced defect rates.• Streamlined Backend Operations by developing robust backend services with Spring Boot and Hibernate ORM, ensuring efficient data operations with Oracle databases and increased transaction reliability.• Facilitated Seamless Integration with CRM platforms through API connectors, enhancing data flow between systems and increasing cross-platform efficiency.• Reduced Operational Costs by implementing multi-cloud strategies across AWS, Azure, and GCP, achieving cost-effective resource utilization and improved service availability.• Improved Data Processing Speed by tuning Spark jobs, maximizing resource utilization and enhancing data throughput for analytics-heavy applications.• Boosted System Availability by integrating AWS CloudWatch alarms and monitoring tools, reducing downtime and ensuring proactive issue resolution.