Jeonghwan Lee

Experience

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  Alternative Military Service

  Aug 2021 - Aug 2024

  Software Engineer

  Serving as a software engineer at a government-awarded enterprise during a three-year alternative military service in Korea.- Electronic Joint Certificate System Development: Spearheaded the development of an Electronic Joint Certificate System using Spring Boot, leveraging Java’s multithreading and concurrency, resulting in a 30% reduction in the system’s baseline processing time. - Relay Server Optimization: Orchestrated a strategic refactoring initiative for pre-existing relay servers while optimizing and implementing advanced functionalities, leading to a 15% increase in server responsiveness speed. - AI R&D Leadership: Led the development of a fraud detection AI model within the company’s authentication product, achieving 92% accuracy; played a pivotal role from proposal crafting to final presentations, securing $1.2 million in research funding. - AWS Architecture Implementation & Production Deployment: Architected a robust, scalable, and secure solution for company products by leveraging AWS’s microservice architecture; enhanced system security by crafting customized AWS WAF rules, leading to a 40% reduction in invalid, spam requests. - Backend Processing Optimisation: Optimized backend processing speed by 30% through the implementation of asynchronous data exchange using Ajax and displayed data with DataTables in the company’s back-office program.My national service has concluded as of August 2024. Show less