Hi, I am Mofei!
Coding and living, in Finland.
Writing about tech, migration, family, and the everyday life of a software engineer in Finland.
Scroll down arrow

About Me

👋 Hi, I'm Wenlong Zhu (Mofei). I'm a Chinese software engineer living in Finland, and someone who keeps writing and exploring.

Over the years, I've worked across frontend, backend, large-scale data systems, and AI applications, while also writing about migration, family, tools, and everyday life. To me, growth never happens in code alone.

I've worked in very different environments:

  • Yiban — a key platform in China's higher-education digital ecosystem
  • Baidu — one of China's leading companies in search and AI technology
  • Mapbox — a global "unicorn" in mapping and location intelligence

This blog is about technology, but also cities, migration, parenting, and everyday observations. It's written for readers today and for my future self.

Work and Life

At work
🧠 Broad Engineering Practice🧭 Maps & Data🤖 Exploring AI Applications
In life
📚 Long-term Writing📝 Migration and Everyday Notes👨‍👧‍👧 Dad of Two

Tech keeps me climbing through the world of maps, writing clears my head, and life with family is the compass I return to.

Expertise

I've worked across many kinds of problems, but most of them fall into four threads: AI, frontend, backend systems, and data with maps.

🤖

AI & Agents

4 key areas

Agent Systems|MCP|Prompt / Tool Orchestration|Skills

Frontend

4 key areas

React|Next.js|TypeScript|Performance Optimization
🔧

Backend Systems

4 key areas

Node.js|Python|API Design|Platform Engineering
📊

Data, Maps & Pipelines

4 key areas

PySpark / Spark|Airflow|Geospatial Systems|Data Pipelines

Connect

📧
Email

hi@mofei.life

For collaborations, tech conversations, or simply saying hi, email is the best way to reach me.

GitHub

github.com/zmofei

This is where I share open-source work, experiments, and how I tend to build things.

🌍
Location

Helsinki, Finland

I’m based in Helsinki and comfortable working across time zones and distributed teams.

🤝
LinkedIn

linkedin.com/in/mofei-zhu

If you’d like to stay in touch over time, LinkedIn is probably the better place.

The Journey

From Huainan to Shanghai, Beijing, and eventually Helsinki. Over the past 16 years, the cities changed, and so did the way I build, work, and look at the world.

🌱
-2008
Huainan

Huainan · The Start

I grew up in a small city, always curious about the wider world and about technology. A lot of what came later started from that curiosity.

🚀
2008-2014
Shanghai

Shanghai · Yiban (Campus Social)

I came to Shanghai for university and joined Yiban to help build a campus social product. That was where I slowly moved from being a student to becoming an engineer, and where frontend work became serious for me.

🧠
2014-2018
Beijing

Beijing · Baidu (Data Visualization)

At a large internet company, I kept sharpening my frontend and interaction skills, and started thinking more seriously about data, visualization, and product experience as one whole.

🌍
2018-2023
Shanghai

Shanghai · Mapbox (Maps and Data Platform)

I joined a global team at Mapbox, working on map data processing and platform engineering. That was where geospatial systems, large-scale data, and cross-region collaboration became part of my daily work.

❄️
2023-Now
Helsinki

Helsinki · Mapbox (Data, Maps, and AI)

After moving to Finland, I continued to go deep on data work while placing more focus on AI exploration and innovation, thinking about how it can meaningfully enter geospatial systems and real workflows.

I also like exploring the world

Beyond technology and writing, I also keep notes on the cities I've lived in, the places I've seen, and what migration feels like along the way.