Abhishek Kumar Sachan

Currently contributing as a Software Engineer Associate, enhancing an enterprise-grade Spring MVC application to support internal agent operations for user identity and account management.

• Contributed to the development and maintenance of an enterprise-grade Spring MVC application hosted on IBM WebSphere, ensuring robust functionality for internal agent operations related to user identity and account management.
• Tasked with modernizing critical legacy integrations and significantly enhancing the UI to improve operational efficiency and user experience for critical business functions.
• Re-architected complex backend workflows by migrating SOAP integrations to AKS-hosted RESTful microservices, refactoring controller, service, and Manager layers, and upgrading JSP-based UI, resulting in improved scalability and user experience.
• Achieved measurable reductions in service latency, streamlined agent interactions, and expedited production issue resolution through proactive log tracing and root cause analysis, enhancing system reliability.

Engineered and deployed a microservices architecture for a high-performance food delivery service, focusing on scalability and reduced response times.

• Implemented a scalable microservices architecture using Java, Spring Boot, Kafka, and PostgreSQL to create REST APIs for a food delivery service, capable of handling multiple concurrent requests with optimized response times.
• Developed robust RESTful APIs to efficiently expose high-throughput data from Kafka to other microservices, ensuring seamless data flow and integration across the ecosystem.
• Collaborated effectively with cross-functional teams to gather comprehensive requirements, design robust data solutions, and ensure timely delivery of critical features.
• Led a cross-functional team in implementing a new Google Maps feature (store location, driver location, route mapping) utilizing React (Leaflet Library) and Redux, significantly enhancing real-time tracking and operational visibility.
• Implemented comprehensive Junit testing for the entire service, including all geometry (polygon, line) functions, ensuring high code quality and system reliability.
• Optimized Kafka cluster performance and managed brokers, topics, and partitions, alongside refining PostgreSQL database queries, resulting in a 15% reduction in page load times and enhanced overall application performance.

Developed a comprehensive exam portal with secure authentication and dynamic quiz capabilities, providing immediate results and different access levels.

Developed an automation project to streamline the process of submitting code on HackerRank, significantly saving time and effort for competitive programmers.

Developed a dynamic news website using React.js, providing categorized news (sports, science) with real-time updates and image/authentication features.