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Hi, I'm Young Woo Yoo, a passionate Backend Engineer with over two years of experience working with Java, Spring, and microservices architecture. I also have hands-on experience with Typescript, Node.js, PostgreSQL, and GoLang. I love learning new technologies quickly and enjoy collaborating with teams to improve code quality and drive project success. I have practical experience in DevOps, including setting up CI/CD pipelines and deploying Docker & Kubernetes infrastructure. I'm a proactive team player who often leads study sessions to share knowledge and boost our collective growth. Agile methodologies and clean code principles are central to how I work, ensuring reliable and maintainable solutions.…Hi, I'm Young Woo Yoo, a passionate Backend Engineer with over two years of experience working with Java, Spring, and microservices architecture. I also have hands-on experience with Typescript, Node.js, PostgreSQL, and GoLang. I love learning new technologies quickly and enjoy collaborating with teams to improve code quality and drive project success. I have practical experience in DevOps, including setting up CI/CD pipelines and deploying Docker & Kubernetes infrastructure. I'm a proactive team player who often leads study sessions to share knowledge and boost our collective growth. Agile methodologies and clean code principles are central to how I work, ensuring reliable and maintainable solutions.

Young Woo Yoo

Back-End Developer, Developer, DevOps Developer, +1

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Hi, I'm Young Woo Yoo, a passionate Backend Engineer with over two years of experience working with Java, Spring, and microservices architecture. I also have hands-on experience with Typescript, Node.js, PostgreSQL, and GoLang. I love learning new technologies quickly and enjoy collaborating with teams to improve code quality and drive project success. I have practical experience in DevOps, including setting up CI/CD pipelines and deploying Docker & Kubernetes infrastructure. I'm a proactive team player who often leads study sessions to share knowledge and boost our collective growth. Agile methodologies and clean code principles are central to how I work, ensuring reliable and maintainable solutions.…Hi, I'm Young Woo Yoo, a passionate Backend Engineer with over two years of experience working with Java, Spring, and microservices architecture. I also have hands-on experience with Typescript, Node.js, PostgreSQL, and GoLang. I love learning new technologies quickly and enjoy collaborating with teams to improve code quality and drive project success. I have practical experience in DevOps, including setting up CI/CD pipelines and deploying Docker & Kubernetes infrastructure. I'm a proactive team player who often leads study sessions to share knowledge and boost our collective growth. Agile methodologies and clean code principles are central to how I work, ensuring reliable and maintainable solutions.

Available to hire

Hi, I’m Young Woo Yoo, a passionate Backend Engineer with over two years of experience working with Java, Spring, and microservices architecture. I also have hands-on experience with Typescript, Node.js, PostgreSQL, and GoLang. I love learning new technologies quickly and enjoy collaborating with teams to improve code quality and drive project success.

I have practical experience in DevOps, including setting up CI/CD pipelines and deploying Docker & Kubernetes infrastructure. I’m a proactive team player who often leads study sessions to share knowledge and boost our collective growth. Agile methodologies and clean code principles are central to how I work, ensuring reliable and maintainable solutions.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Korean

Advanced

Work Experience

Backend Engineer at LaundryGo

April 30, 2025 - July 12, 2025

Participated in the entire development lifecycle of a coupon system from planning to release, collaborating with designers, PMs, and front-end engineers. Successfully enabled usage of over 1.5 million coupons. Added a new payment method applying Strategy and Template Method patterns improving code maintainability. Implemented Transactional Outbox Pattern with CDC to ensure 100% API atomicity and reliable Kafka event publishing. Rebuilt Kubernetes AWS EKS cluster and optimized Linux batch processes reducing monthly AWS costs by 18%. Improved user tracking by adopting Redis Bitmap, reducing storage and query latency significantly. Developed user coupon registration API with enhanced error handling using AOP and Redis to reduce database load. Practiced Agile methodologies to improve delivery processes via sprint-reviews and best practices.

Backend Engineer Trainee & Code Reviewer at Woowacourse (Bootcamp)

June 30, 2024 - July 12, 2025

Reviewed Java-based missions for upcoming engineers, covering coding conventions, clean code, OOP principles, Spring framework, and web architectures. Shared experiences to empower new professionals and mentored crew focusing on testable code guidelines. Enhanced communication skills through coaching sessions and team collaboration supporting growth as software engineers. Developed 'Teatime' Reservation Management Service including full lifecycle development, product design decisions, and extensive testing coverage. Optimized transaction handling and query performance significantly, reducing API response times and database query counts. Established Jenkins-based CI/CD pipelines on AWS EC2 with zero-downtime deployment.

Backend Engineer at Woowacourse (Bootcamp)

November 30, 2022 - July 12, 2025

Developed 'Teatime', a Reservation Management Service, actively participating in product direction and design decisions as part of a developer-only team. Designed testable code with 375 tests and 80% test coverage. Optimized inefficient transaction handling and reduced API response time by 75%. Significantly optimized data queries and solved N+1 query issues. Established CI/CD pipeline using Jenkins and Linux shell scripts on AWS EC2 for automated build and deployment, introducing zero-downtime deployment which reduced downtime from 20 seconds to 0.2 seconds.