Byeoungwoo Lee Email & Phone Number

Seoul, South Korea / Rancho Cucamonga, Ca, United States

Based on my deep understanding and experience in back-end development in cloud environments, I have demonstrated excellent performance in developing web applications and API protection features. In addition to development skills using Golang and various technology stacks, I also have leadership and collaboration skills to successfully lead team projects. I am able to respond sensitively to the latest development trends through a creative approach to problem solving and continuous technological learning. I like challenging myself with difficult project, and I work efficiently under high-stress environment. To optimize performance and improve system stability, I have practiced test-driven development (TDD) and actively utilized performance analysis tools.My experience and skills make me a strong candidate for the back-end development field, and I hope to apply my passion and skills in contributing to the company’s goals and growth. I enjoy learning and applying new skills quickly, and find great satisfaction in achieving common goals through teamwork and collaboration. I am ready to add value to your back-end development team.

Rancho Cucamonga, California, United States / Seoul, South Korea

Web Application and API Protection (WAAP) Development: Led the development of web application and API protection capabilities that operate in cloud environments. This strengthens system security, improves bot detection and API protection, and improves overall service stability.Development language and technology stack: Golang is used as the main development language, and an efficient back-end solution has been developed based on high proficiency in PostgreSQL, Redis, Linux, and Docker.Communication protocol and reverse proxy development: Based on a deep understanding of HTTP and HTTPS communication, we developed and operated a reverse proxy application to efficiently manage network traffic and enhance security.Development of web cache function and log transmission process: Led the development of the web cache function and optimized the log transmission process to significantly improve website performance and system monitoring and analysis efficiency.Performance optimization and monitoring: System performance was maintained and improved by regularly performing performance tests using ngrinder and pprof, and system stability was continuously managed through application monitoring through Grafana.Quality Control and Mentoring: Maintained code quality through unit test writing and code reviews, and mentored junior developers on best practices for backend development techniques and tools.Version management and collaboration tools: Improved development process efficiency through systematic version management using Git and project management and team collaboration using Jira and GitLab boards.Problem solving and continuous improvement: Software design errors were corrected by debugging and resolving issues that occurred in the existing code base, and software performance was continuously improved through regular updates.