Fenjin Wang
Machine Learning Engineer at ByteDance
Singapore, Singapore
Summary
👤
Senior🎓
Top SchoolFenjin Wang is a machine learning engineer with 11 years of experience building production ML and backend systems across global tech firms, currently at TikTok after leadership and senior engineering roles at ByteDance and Amazon. He combines hands-on implementation skills with team leadership, having transitioned from Tech Lead Manager to a returning individual-contributor ML role, indicating a passion for deep technical work. Based in Singapore, he contributes to open-source, notably improving ergonomic Rust bindings for DuckDB, reflecting a strong systems and data-infrastructure orientation. Trained at Peking University and Sun Yat-sen University, he pairs rigorous academic foundations with practical delivery of scalable, data-driven solutions.
11 years of coding experience
5 years of employment as a software developer
Master's degree Computer Software Engineering, Master's degree Computer Software Engineering at Peking UniversityBachelor's degree Computer Science, Bachelor's degree Computer Science at Sun Yat-sen University
Chinese, English
Stackoverflow
333reputation
15kreached
7answers
4questions
Github Skills (16)
duckdb10
rust10
ffi10
bindgen9
databases8
arrow-js8
database8
arrows8
arrow-keys8
algorithm6
go6
cmake6
android6
coding-style6
package6
Programming languages (18)
Github contributions (5)
duckdb/duckdb-rs
Jun 2021 - Jan 2023
Ergonomic bindings to duckdb for Rust
Role in this project:
Back-end Developer
Back-end DeveloperContributions:36 reviews, 113 commits, 188 PRs in 1 year 7 months
Contributions summary:Fenjin appears to be primarily involved in implementing and improving the Rust bindings for DuckDB. Their commits focus on initializing and improving the bindings for libduckdb-sys, which involves generating bindings using bindgen, and defining core data structures. The commits also include code formatting and the addition of various data types, demonstrating a focus on ensuring the Rust bindings are complete and ergonomic. The user has implemented the required features and functions to make the bindings more complete.
duckdbrustolaparrowergonomic
wangfenjin/simple
Mar 2020 - Dec 2022
支持中文和拼音的 SQLite fts5 全文搜索扩展 ｜ A SQLite3 fts5 tokenizer which supports Chinese and PinYin
Contributions:5 reviews, 156 commits, 108 PRs in 2 years 9 months
chinesepinyinsqlite3-fts5sqlite3fts
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