About me

Hyunwoo

Hi! I'm Hyunwoo

Developer & Entrepreneur

Born in Korea, currently living in Canada.

const dream = "reality"; while(alive) { code(joy); } 💻

Who I Am Professionally

50%
30%
20%
50%

I am a

Software Developer

30%

I am a

Entrepreneur

20%

I am a

Freelancer

"Since I was a student, I've dreamed of changing the world with my vision.
I realized the fastest way to do that was to build my thoughts into reality myself−so I became a Developer. After honing my craft in a big tech company for a while, I dove headfirst into the Startup scene and hustling. But reality soon hit, and so did the bills... which naturally led me to become a Freelancer to survive. As it turns out, I'm actually quite good at it 😅"

Fullstack Software Developer

10+ years

"A full-stack veteran with a curiously wide spectrum."

Loading commit history...

I started my career as a mobile app developer in 2009, back when I was still in college and the smartphone revolution was just beginning. The booming mobile app market in Korea at that time provided plenty of career opportunities, even for a junior engineer like me.

My path then led me to Samsung Electronics, where I spent years working on global-scale backend systems and cloud infrastructure. It was here that I dove deep into distributed systems, microservices architecture, and the complexities of serving millions of users across different regions.

When I moved to the startup world, the role completely changed. There was no luxury of specializing in just one area - if something needed to be built, I built it. Frontend, mobile, DevOps, AI integration - whatever the product needed. This became how I naturally work.

Now my experience spans from embedded software for IoT sensors to cutting-edge LLM Application implementations. Whether it's a straightforward matching service or a complex real-time analytics platform, I focus on understanding the problem and building what works.

Startup Founder

Startup Hustler

"10+ Products, 4 Corporations, and many more Hypotheses Tested."

My startup journey isn't a gallery of "Exits" or "Unicorns." It’s a collection of raw survival stories and hard-won lessons. I've spent years in the trenches, testing dozens of hypotheses and launching numerous MVPs just to see what sticks.

Among those many trials, four ventures—softlunch, NOLLAB, josangnim.com, and Tryfifty—reached the point of incorporation. Some didn't find their market and closed down, and some are still running but have changed shape entirely. Each one taught me how to build fast, fail lean, and stay resilient in the face of uncertainty. I don't just build software; I build based on the reality I've faced.

7+
Teams Built
4
Legal Entities
20+
Hypotheses Tested
10+
Products Built
6
Launched

Founded Companies

softlunch
softlunch
Financial Big DataLocation-based UXFintech MVP

Fintech venture providing personalized recommendation services through financial data and location-based analytics.

NOLLAB
NOLLAB
StreetBallerLeisure PlatformMatchmaking AI

Developed a platform for leisure and sports revitalization. Featured 'StreetBaller', a location-based matching and community management service for basketball enthusiasts in Korea.

josangnim.com
josangnim.com
Grave MaintenanceFuneral TechAncestral Care

A specialized platform for grave weeding and maintenance services, targeting the broader market for grave relocation and traditional funeral culture through digital transformation.

Tryfifty
Tryfifty
LLM DocumentationPM SaaSDev Collaboration

Developed an LLM-powered documentation automation tool designed to bridge the gap between software development teams and PMs through seamless communication and automated workflows.

Freelance Developer

Trusted Partner

"Quality proven by client satisfaction and sustained partnerships"

As a freelance developer, I've built core services for various startups and companies. Below are some of my representative projects.

Clients have been highly satisfied with my work, and I've achieved a sustained re-contract rate of 80%. Below are a few representative projects I've delivered.

80%
Re-contract Rate
★★★★★
Client Satisfaction
100%
On-time Delivery

Featured Projects

Tooning
Tooning
AI/Content Platform
3Re-contracts

Freelance engagement on the AI webtoon creation platform. Participated in v1.0 development and stabilization, cloud migration, and building AI-based webtoon background generation features.

Kowork
Kowork
Job Matching Platform
2Re-contracts

Job platform for foreigners in Korea. Delivered the project end-to-end from initial v1.0 design and development through to Android and iOS release.

MyLab
MyLab
Health Tech
2Re-contracts

Personalized health management healthcare app. Led v1.0 mobile app development and LLM-based report generation projects.

Spoeum
Spoeum
Sports Matching
3Re-contracts

Platform matching professional golfers and caddies. Led v1.0 design, front-end and back-end development, and served as PM for the dev team.

Beyond work

Who I am personally—what I love and what keeps me going outside the day job.

✈️

Travel

I'm down to travel anywhere—as long as there are no giant insects. Other than that, I'm easily moved by the beauty of any place I visit.

🏀

Basketball

I've loved basketball since I was a student. I still play a game once a week and catch NBA highlights occasionally.

🎮

Video Games

I prefer solo, chilled-out gaming. I usually stick to steady-seller titles in action, RPG, or turn-based simulation genres.

🍳

Cooking

I mostly cook Korean food but occasionally challenge myself with Western dishes. If you come over to my house, I can treat you to some home-cooked Korean food!

📚

Books

I have quite specific tastes: for fiction, I stick to Fantasy and Sci-Fi. Otherwise, I enjoy Economics, Business, Humanities, Self-Improvement, and History.

🔌

Gadgets & Tech

I'm fascinated by the latest gadgets like drones, VR, and AR glasses. I wish I could afford them all... but reality (and my wife) says otherwise! 🥲