My name is Jung Sup (James), and I am a software engineer. I moved from Seoul, Korea to Toronto, Ontario to study at University of Toronto. After graduating with my bachelor degree in statistics and economics, I had been working for companies like Indeed and Woori Immigration Consulting.

I work at Replicon as a software engineer. My Site Reliability Engineering (SRE) team ensures highly available and scalable services for our clients, and my primary job is to work with teammates to achieve that goal.

Before joining Replicon, I had been running my company, Chy Square. Chy Square is a digital agency that provides web and software development services for clients in the world. As a co-founder, I had great opportunities to work with professional and brilliant teammates.

Work History


Full-stack developer • 2021 - Present

Chy Square

Co-founder / Full-stack developer • 2018 - 2021

WOORI Education & Immigration Consulting

Case Processing Assistant • 2019


INTL General Research Team Member • 2018 - 2019



Jasan is a place that you visit to get investment ideas, regardless of your level of experience.

Chy Square

Chy Square is a digital agency that integrates strategy, creativity & experience to help you build your brands.


Seenive is a marketing agency that provides a full range of marketing services for companies and institutions in Southern Asia, North America, and Europe.


Unlyst provides subscribers with an email, including the latest status of active development projects in Toronto every morning.