I have been a developer in Korea for years. I studied computer science there, got my first job there, built my career there. The Korean tech scene is intense, fast-moving, and deeply competitive. It is a great place to grow as a developer.
But it was not until I started living abroad that I realized something important: I had been building for one audience my entire career. Korean users, Korean clients, Korean platforms. Everything was in Korean, for Koreans, inside the Korean internet ecosystem.
Moving abroad did not just change where I live. It changed how I think about building things. And that shift is the reason this blog exists.
The Bubble You Do Not Know You Are In
Korea has its own internet. I do not mean that literally — obviously Koreans use the global internet. But in practice, Korean digital life is remarkably self-contained. Naver instead of Google. KakaoTalk instead of WhatsApp. Coupang instead of Amazon. Tistory and Naver Blog instead of Medium or WordPress.
When you are inside that ecosystem, it feels like the whole world. You optimize for Naver SEO, you build KakaoTalk integrations, you design for Korean UX conventions. And because Korea is a $1.6 trillion economy with 52 million tech-savvy consumers, there is plenty of opportunity. You never feel like you are missing anything.
But you are. You are missing 7.9 billion other people.
I did not realize this until I moved abroad and started using the global internet as my primary digital environment. Suddenly, I was not searching on Naver — I was searching on Google. I was not reading Korean tech blogs — I was reading Hacker News, Dev.to, Reddit. I was not competing with Korean developers for Korean users — I was seeing the sheer scale of the English-speaking internet.
And that scale changes everything.
Why I Chose to Blog in English
When I decided to start this blog as a side hustle, the obvious choice was to write in Korean. It is my native language. I can express myself more naturally, more precisely, with more nuance. Writing in Korean is easy.
But I chose English. Here is why.
Market size. The English-speaking internet is not just bigger than the Korean internet — it is incomparably bigger. English content reaches the US, UK, Canada, Australia, India, the Philippines, Singapore, much of Europe, much of Africa, and basically anyone who uses the internet for professional purposes. When you write in English, your potential audience is measured in billions, not millions.
Monetization. English-language AdSense RPMs (revenue per thousand impressions) are significantly higher than Korean ones. The same traffic in English is worth more money. If you are building a blog as a business — even a small side hustle — the economics of English content are simply better.
Longevity. English content has a longer shelf life in search engines. Korean tech blog posts tend to get buried quickly in Naver algorithm. English posts on Google can rank and generate traffic for years. I have seen English blog posts from 2019 still pulling in thousands of monthly visitors. That does not really happen in the Korean blogging ecosystem.
Diversification. This is the side hustle angle. If your income depends entirely on one country economy, one currency, one job market — you are exposed. A blog that generates revenue in USD from a global audience is an income stream that is not tied to any single country. That matters when you live abroad.
The Bilingual Advantage: Korean Thinking, English Output
Here is the part most people do not think about. Being a non-native English speaker used to be a disadvantage for content creation. Your writing would sound awkward, unnatural, full of grammar issues. Readers would click away.
AI changed that completely.
My workflow for this blog is: I think in Korean. I give directions in Korean. Claude turns it into natural English. The ideas are mine. The perspective is mine. The experiences are mine. The language barrier is handled by AI.
And here is the interesting thing — this is actually an advantage, not just a workaround. My Korean background gives me a different perspective on tech, on work culture, on how products should be built. I notice things that native English speakers might take for granted. I can compare how tech is consumed in Korea versus the rest of the world. That cross-cultural lens is genuinely valuable content.
For example:
- In Korea, mobile-first is not a design philosophy — it is just reality. Koreans do everything on their phones. Banking, government services, ordering food, paying at stores. If your product does not work perfectly on mobile, it does not exist. This gives Korean developers an instinct for mobile UX that is hard to learn from textbooks.
- Korean internet culture moves incredibly fast. Trends emerge and die within days. Memes have a 48-hour lifespan. This trained me to think in terms of rapid iteration and quick feedback loops — a skill that translates directly to building products for any market.
- The Korean work culture emphasis on 빨리빨리 (fast, fast) — while sometimes exhausting — builds a kind of execution speed that is rare in other tech cultures. Korean developers ship fast. That is a real competitive advantage.
None of these insights would exist if I was a native English speaker writing about the same topics. The bilingual, bicultural perspective is the differentiator.
Cultural Differences in How Tech Is Consumed
Living abroad showed me how different the tech landscape looks from country to country. Things I took for granted in Korea are completely foreign elsewhere — and vice versa.
Payment culture: In Korea, paying with your phone or card is universal. Cash is almost extinct. But in many countries, cash is still king. This fundamentally changes how you design e-commerce and payment flows.
Super apps vs. single-purpose apps: KakaoTalk is a messaging app, a bank, a taxi service, a shopping platform, a content platform, and a payment system. In the West, these are all separate apps from separate companies. Neither approach is better — but if you have only ever built for one model, you do not realize the other one exists.
Content consumption: Koreans consume a massive amount of short-form video content. YouTube, TikTok, and Instagram Reels dominate. Long-form blog content is less popular in Korea than it is in the English-speaking world, where people still Google questions and read detailed articles. This is exactly why blogging in English makes more business sense for me.
Trust signals: In Korea, people trust platforms. If it is on Naver, it is legit. In the English-speaking internet, people trust individuals more — personal brands, independent creators, individual bloggers with a track record. This means a personal blog like mine has more potential to build trust and authority in English than it would in Korean.
Why Korean Developers Should Think Globally
I know many Korean developers who are incredibly talented. They build amazing products, write elegant code, solve hard problems every day. But almost all of them build exclusively for the Korean market.
I get it. The Korean market is familiar, comfortable, and profitable enough. But I want to make a case for thinking bigger.
The language barrier is gone. AI translation and writing tools are good enough now that a Korean developer can create English content, documentation, or even customer support at near-native quality. The biggest obstacle to going global has been removed.
Remote work is normal. After COVID, companies around the world hire remote developers regardless of location. Your skills are globally portable. Your side projects should be too.
The Korean market is saturated. Let us be honest — competition in the Korean tech space is brutal. There are too many developers chasing too few opportunities in a small market. The global market is exponentially larger, and in many niches, there is far less competition.
Currency diversification. Earning in USD or EUR while living in Korea (or anywhere with lower cost of living) is a massive financial advantage. A side hustle that generates $1,000/month in USD is approximately 1.4 million KRW — a meaningful amount that goes even further if you live somewhere with lower expenses.
You do not have to move abroad to think globally. You just have to decide that your next project, your next blog post, your next side hustle will target the world — not just Korea.
The Side Hustle Angle: Building Location-Independent Income
This blog is my experiment in building an income stream that is not tied to any single country, employer, or economy. Here is what that looks like in practice:
- The blog is hosted on a VPS in Los Angeles. I could move to any country tomorrow and the blog keeps running.
- Revenue (eventually) comes from Google AdSense — paid in USD, spendable anywhere.
- Content is written using AI — I can write from my phone, from a cafe, from an airport. Location does not matter.
- The audience is global. I am not dependent on any single country traffic or economy.
- The skills are transferable. Everything I learn about SEO, content strategy, and monetization applies to any future project.
This is what location-independent income actually means. It is not about being a digital nomad posting Instagram photos from Bali. It is about building systems that generate value regardless of where you physically are.
And as a developer, you already have the technical skills to do this. You can build a blog, automate publishing, optimize for search engines, set up analytics, and iterate based on data. These are developer skills applied to a business problem.
What I Wish I Had Known Earlier
If I could go back and talk to myself when I was still in Korea, building exclusively for the Korean market, I would say this:
- Start writing in English now. You do not need to be fluent. AI tools will handle the language. Your ideas and experience are what matter.
- Build one project for a global audience. It does not have to be big. A blog, a small SaaS tool, an open-source project with English documentation. Just one thing that targets the world instead of just Korea.
- Learn SEO for Google, not Naver. The skills are different. Google rewards different things. Start learning now because it takes time to see results.
- Think in USD. When you evaluate a side hustle opportunity, think about the global market size, not just the Korean one. The numbers are dramatically different.
- Your cross-cultural perspective is your superpower. Do not try to hide the fact that you are Korean or that English is not your first language. Lean into it. The unique perspective is what makes your content valuable.
Working abroad did not make me a better developer. But it made me a developer who thinks bigger. And that has made all the difference.
How This Post Was Made
I gave Claude a topic: what living abroad taught me about building for a global audience. I provided the key points I wanted to cover — the Korean internet bubble, why I chose English, the bilingual advantage, cultural differences, and the side hustle angle. All of my directions were in Korean.
Claude took those ideas and turned them into the article you just read. The process looked like this: I described the main themes in Korean, Claude drafted the post in English, and the whole thing — writing, formatting, scheduling, SEO setup, featured image — was handled through the same AI pipeline that publishes all my posts directly to WordPress.
No copy-pasting into WordPress. No manual formatting. Claude connects to my server via SSH and publishes directly using WP-CLI. Even the scheduling (this post is set to go live on June 19, 2026 at 7:00 AM) was done by AI.
That is the workflow. Korean thinking in, English blog post out, published automatically.
This post was written with Claude AI. I provided the direction, topic, and key points in Korean — Claude turned it into the article you just read.