# Seunghoon Baik > Software Engineer at Samsung SDS America(cyberThink) Location: Fort Lee, New Jersey, United States Profile: https://flows.cv/seunghoonbaik Samsung SDSA, New Jersey, US • 2020- Software Engineer As a software engineer, design, develop, and maintain systems by full lifecycle software development. Getting user requirements, defining system functionality, writing code in Java, Python, testing in AWS staging environments, and deploying to AWS production environments. • Resolved ticket number duplication issue ( 3,000 cases/year across 8 external applications) by analyzing source code and identifying short Redis lock expiration as the root cause; extended lock duration to ensure atomicity, resulting in 0 duplication cases after the fix. • Investigated and resolved performance degradation in API Gateway after connector model upgrade by implementing response time logging and log analysis; collaborated with connector team to apply a patch, improving average response time from 12s to 4s. • Resolved critical Linux server storage issue by identifying oversized Jenkins build logs ( 40GB per job) and implementing log rotation policy, reducing storage utilization from 95% to under 50%. PORTERS Corporation, Tokyo, Japan • 2017-2019 Provide software as a service (SaaS) HR-Business Cloud system for recruitment agencies to manage a job, candidate, interview, report. Developed and maintained the Cloud Services using Agile/Scrum methodology. • Developed, maintained, tested, and deployed applications using Java, Spring Boot, Docker, and AWS (EC2, CloudFormation, S3, CloudWatch, etc.), achieving bi-weekly deployments (2+ releases per month) through automation. • Led the development and management of import/export functions between internal applications and external websites, achieving 50% improvement in data processing speed. • Collaborated with team members to create development plans and assigned tasks using Agile/Scrum, successfully leading a 4-member team with over 90% sprint goal achievement rate. - Languages: Python, Java - Web: JavaScript, HTML, CSS, JSP - Web Services: RESTful - Web and Application Servers: Tomcat - Frameworks: Spring boot, JPA, Hibernate - Databases: MySQL, PostgreSQL - Design Patterns: Singleton, Factory, Builder, Strategy - SDLC: Agile-Scrum - Tools: IntelliJ IDEA, Eclipse STS, VS Code, Git, Maven, Jenkins, Star UML, Postman, Docker - Platforms: Linux, AWS (EC2, S3, CloudFormation, CloudWatch, Elastic Load Balancing, CodePipeline) - Big Data: Hadoop, Spark English, Japanese, Korean ## Work Experience ### Software Engineer @ Samsung SDS America Jan 2020 – Present | New Jersey, United States • GenAI Project - Led data analysis initiatives in the GenAI project to refine LLM and RAG performance, improving predictive accuracy by 20% and user engagement by 15%. • Expanded Copilot system globally by adding and updating APIs and implementing UI enhancements, improving usability for 10,000+ international users and supporting 5+ global teams. • Developed and maintained Python, Java and Spring Boot programs to manage 20+ web servers, reducing manual update time by 30%. • Led development and maintenance of a ticketing system used by 10,000+ Samsung agents globally, tracking and resolving 500+ tickets annually using Python, Java, Spring Boot, MySQL, and AWS. ### Software Engineer @ PORTERS Corporation Jan 2017 – Jan 2019 | Tokyo, Japan I wanted to see and experience the world, so I decided to go to Japan. I studied Japanese for a year and joined Porters Corporation. My three years at Porters Corporation were the most valuable experience of my life. It was my first job, but I met many good people and, we became friends. The company was full of professionals who take ownership of their products and truly enjoy their work. From them, I learned two of the most important qualities for my career: responsibility and passion. I spent my three years at Porters Corporation not just as an employee, but as a friend to everyone. ## Education ### Master of Science - MS in Computer Science Maharishi International University ### Bachelor's degree in Computer Science Soongsil University ## Contact & Social - LinkedIn: https://linkedin.com/in/seunghoonbaik89 --- Source: https://flows.cv/seunghoonbaik JSON Resume: https://flows.cv/seunghoonbaik/resume.json Last updated: 2026-04-13