DevOps Engineer Wim Hof Method Instructor Surfer Hemp Enthusiast Buddhist 98% Vegan Brazilian Jiu Jitsu White Belt First Generation Korean American

I work with computers for living, teach breathing & ice bath to help others, and surf & roll for fun

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Hello, I’m born and raised in South Korea. I had a priviledge to learn programming, server administration, and networking in the first IT specialized high school in Seoul. I continued my education in University of Minnesota with Computer Engineering bachelor degree. I've worked as a DevOps engineer in various size of companies. My specialization has been in infrastructure automation and container orchestration. You can find more about them in my tech resume.

Few years ago, I realized the combination of the IT profession and computer gaming hobby was not the healthiest lifestyle I could live. I slowly integrated more active and health conscious hobbies, such as yoga, Jiu Jitsu, and surfing into my lifestyle. Then in the winter of 2016, I got to spend a week in Poland with the Wim Hof tribe, and that really clicked within me. The vibrant life force I experienced through the breathing and cold exposure really helped me to improve so many aspects of my life. I became a certified Wim Hof Method instructor in 2018, and has been teaching the method ever since then. If you are interested, you can learn more about it at my instructor profile and my business website.


Skills and Hobbies


This is where money is for me. Infrastructure as Code, Deployment Automation, and Container Orchestration. If you can articulate it, I can automate it.

Wim Hof Method

WHM is the simpliest and the most powerful life hack I found. With power of breathing and cold exposure, I started to reach for the highest potential of my life.


Yoga became the foundation for all of my hobbies. WHM, Surfing, Brazilian Jiu Jitsu, I think they are all just extension of yoga.


Surfing is the most unexpected life change I got to experience. Open ocean, a surfboard, and endless fun. I call it the heathiest addiction.

Brazilian Jiu Jitsu

Nothing destroys my ego more effectively than BJJ. I absolutely love getting my ass handed over to me over and over. Best way to practice "No ego, We go"

And More

Photography, fire dancing, I'm always trying to pick up something new. Learning should never stop. As long as you are having fun, you are doing it right.

Latest Blog Post


Helm 2 to 3 Migration Review

Monday, Dec 28, 2020 tech, devops, sre, kubernetes, k8s, helm

My first project at Calm was migrating Helm2 to Helm3. In this post, I’m going to share a few resources I used as guidance and more detailed steps and minor problems I ran into during the migration process. Recommended Read Summary of the changes from Helm 2 to Helm 3 How to migrate from Helm v2 to Helm v3 Migrating to Helm 3: What You Need to Know Migration Scenario at Calm At Calm, we have multiple k8s clusters throughout the environment.

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Let's catch up

I would love to hear from you! I would love to learn from you, teach you something, collaborate with you, catch some waves with you, or just hang out and chill, drop me a message. I'll get back to you asap.

Get in touch!