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Jay YoonJY
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Jay Yoon

@jayyoon

I lead healthcare platform teams and build scalable backend microservices with NestJS and Docker.

South Korea
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What I'm looking for

I'm looking to lead collaborative teams building reliable, scalable software, with opportunities to improve workflows, automate delivery, and develop robust backend systems.

At Mediark, I lead the development of a comprehensive healthcare platform using Next.js and NestJS.

I've spearheaded projects including 우리닥터 (Woori Doctor) and 심토미케어 (Simtomi Care), leading teams while engineering scalable microservices architectures with NestJS and Docker.

I manage repositories, automate deployment and testing, and implement CI/CD pipelines and efficient workflows that improve team productivity and software delivery quality.

My backend work includes managing databases and server infrastructure, maintaining APIs, and collaborating across teams to optimize Mediark's systems for performance, reliability, and scalability.

Experience

Work history, roles, and key accomplishments

Mediark logoME
Current

Project Team Lead

Apr 2024 - Present (2 years 5 months)

• Led a team in developing a comprehensive healthcare platform using Next.js and NestJS.
• Managed repositories for seamless CI/CD pipelines and implemented efficient team workflows.
• Automated deployment processes and testing, enhancing overall team productivity.

Mediark logoME
Current

Back End Developer

Aug 2023 - Present (3 years 1 month)

• Managed databases and server infrastructure to ensure performance, reliability, and scalability.
• Developed and maintained APIs for seamless integration and functionality.
• Collaborated with cross-functional teams to optimize systems for Mediark's operations.

Mediark logoME

Full-stack Developer

Sep 2022 - Feb 2023 (5 months)

• Developed RESTful APIs and managed Dockerized services for robust and scalable backend solutions.
• Collaborated on Flutter-based mobile application development, integrating business and UI logic.
• Contributed as a Full Stack Developer, focusing on backend development with NestJS and microservices architecture.

Republic of Korea Army logoRA

C4I operator

Mar 2021 - Sep 2022 (1 year 6 months)

Worked as C4I operator at Republic of Korea Army.

Education

Degrees, certifications, and relevant coursework

UP

University of Pretoria

Bachelor of Science - BS, Computer Science

2017 - 2023

University of Pretoria logoUP

University of Pretoria

Bachelor of Science, Computer Science

2017 - 2023

Pursued a Bachelor of Science in Computer Science at the University of Pretoria from 2017 to 2023.

Tech stack

Software and tools used professionally

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