I'M A BUILDER.
Jooncco is a developer handle of mine. I started my career as a back-end engineer, but I found that I could be the full-stack engineer that my team would LOVE to work with. I've led many business critical projects to success, ranging from small to big scales. You can find the details here. Workout at a gym, phoenix darts at a pub, watching movies and snow boarding are what I do whenever I need mental clarity and recovery.
Full Stack Engineer
Back End Engineer
Solutions Architect
Problem Solver
Work Experience
Client: KRX
Jan 2024 - Feb 2024
A front-end prototype app with multipart download functionality.
Contributions:
- Improved download speed for a 1.2TB file, reducing time by 40%
- Designed & implemented a multipart download module with Axios.
- Implemented a front-end app with Next.js & Tailwindcss
Stack: Next.js 14, Tailwindcss, Zustand, Axios, Amazon S3 API
Client: GS Global
Dec 2023 - Dec 2023
An automatic anomaly detection system for T4K truck customers feedback, which scrapes feedbacks from Kakao Talk chat room, analyzes the sentiment, and sends an email to the responsible team.
Contributions:
- Overall system design
- Implemented Scrapper: A Python app responsible for automated export of Kakaotalk chat contents.
- Implemented Uploader: A Spring Boot app parses chat text, and uploads those parsed text to S3 bucket.
Stack: Amazon EC2, AWS Lambda, Amazon S3, Amazon RDS, Amazon Comprehend, Amazon SES, Python, OpenCV, Spring Boot
Client: LG Electronics
Feb 2023 - Nov 2023
LGE SDP App Modernization project: next generation IP TV web servers.
Contributions:
- Implemented REST APIs for IP TVs: device authentication & initialization based on device meta data.
- Reduced execution time of a device initialization API by 50% with executor threads.
- Designed & implemented a batch micro service which periodically uploads log files to S3 bucket for monitoring.
Stack: Spring Boot, MyBatis, MySQL, AWS
Hammer and wrench
Art gallery
Love problem solving
My small wins
25 OCT 2023
15 SEP 2023
20 JUN 2023
02 FEB 2023
Shoutouts
The most proactive person that I know of
"Whenever there's something to be done, Junha is always the first to volunteer. I've seen this happen so many times that it's become familiar. Thanks to his proactive support even in somewhat challenging or hesitant situations, I feel secure working in the same team and get motivated by his positive energy. "
Tremendous sense of responsibility and passion
"Our first collaboration was on the LG Electronics project in 2023, where I focused on backend development. Despite the project's initial lift-and-shift approach, he didn't settle for routine tasks. Instead, he actively contributed to raising the project's maturity level through proactive refactoring, supporting the growth of other developers. He displayed a passion for tackling challenges and addressing performance issues, which significantly enhanced customer satisfaction. His positive communication and mentorship with junior developers make him stand out as one of the best backend developers I've worked with. Collaborating with him has been both enriching and enlightening for me."
Positive and proactive attitude towards any difficulty or challenge
"During the NFT exchange project with Junha, I was able to learn a lot and witness his outstanding skills. Firstly, Junha's positive and proactive attitude towards any difficulty or challenge left a strong impression. He took the lead in solving problems effectively by tackling them head-on. Technically, Junha demonstrated remarkable competence. Through continuous learning of new technologies and tools, he added innovative ideas and features to the project. His technical prowess significantly contributed to the project's success. I look forward to the opportunity to collaborate with Junha on future projects"
Always passionate and self-motivated
"Junha is one of the colleagues I would love to work with again among those I've worked with before. He is always passionate, self-motivated, and has an excellent ability to implement necessary requirements. Additionally, he consistently strives for his own growth and is a colleague who has no hesitation in engaging in technical discussions and feedback exchanges with others :)"
