From C++ Intern to Node.js Leader: Practical Lessons on Engineer Growth

Career Journey

I am "不四", a nickname from Alibaba, also known as "死马" in the community. Over the past eight years I have worked at Alibaba and Ant Group, focusing on Node.js and web development, and contributing to open‑source projects such as Koa, Egg, and cnpm.

Internship

In the summer of 2011, during my junior year, I interned at the Taobao data platform as a C++ engineer but was placed in a web team that used the newly released Node.js (v0.4). I started from zero with JavaScript and quickly became a junior JS engineer.

Data Product Team

After graduating in 2012 I joined the Taobao data product team during the big‑data boom. We built products such as Data Cube, Taobao Index, and Taobao Time Machine. Most of these services were IO‑intensive, relying on many backend data sources, making Node.js a good fit for rapid development.

Tmall Front‑End Team

In 2014 I transferred to the Tmall front‑end team, which needed to replace an aging PHP rendering system with a Node.js service for large‑scale Double‑11 traffic. The new Node.js service delivered higher performance and stability, and later powered a visual page‑building platform that has been continuously evolved.

Ant Experience Technology Department

In early 2016 I moved to Ant Group’s Experience Technology Department to work on internal web frameworks and BFF (Backend‑for‑Frontend) patterns. I helped extract Egg.js from the internal Chair framework, unifying front‑end development across Alibaba’s business units, and later open‑sourced Egg.js.

Yuque Team

Following an internal reorganization I joined the Yuque team, an internal incubated project that provides knowledge collaboration and document management for hundreds of thousands of Alibaba employees and later external users. The team practices a product‑engineer culture, delivering full‑stack features efficiently.

Engineering Habits

Write Code Regularly : Consistently writing high‑quality code is the foundation of growth. Good code should be simple, readable, and testable.

Code Review : Regular code reviews improve code quality, spread knowledge, and foster a three‑way win for the author, reviewer, and project.

Unit Tests : Writing unit tests ensures correctness, reduces bugs, and gives confidence for refactoring. The typical workflow includes creating test data, mocking dependencies, invoking the smallest testable unit, and asserting results.

Sharing and Open Source

Regular internal sharing sessions and external talks help solidify knowledge. Contributing to open‑source projects like Koa, Egg, and cnpm deepens expertise and builds community reputation.

Team Growth

Personal growth must be linked to team impact. Initiating internal sharing, enforcing code review and testing, and fostering a product‑engineer culture enable both individual and business success.