Hongji Chen
Backend & System Engineer at 字节跳动
Shanghai, Shanghai, China
Summary
👤
Senior🎓
Top SchoolHongji Chen is a backend and systems engineer with 10 years of experience building large-scale distributed systems and data/AI infrastructure, currently shaping the next-generation TikTok system architecture at ByteDance in Shanghai. Previously at Facebook he worked on C++ core data and real-time infrastructure to power live, consistent product experiences, and his internships spanned online ML platforms, high-performance Netty-based gateways, and frontend and caching systems—demonstrating full-stack fluency backed by strong performance optimization instincts. He holds an MS in Computer Science from Brandeis and a BS from Shanghai Jiao Tong University, combining rigorous academic foundations with proven production impact. Notably, his early work includes an open-source high-performance microservice gateway and a Hazelcast-based caching improvement that cut response times by about 60%, signaling a pattern of pragmatic engineering that focuses on latency, scalability, and reliability. Colleagues would describe him as an engineer who blends systems-level thinking with hands-on implementation to move ambitious distributed systems from prototype to production.
10 years of coding experience
3 years of employment as a software developer
Master of Science - MS, Computer Science, Master of Science - MS, Computer Science at Brandeis UniversityBachelor's degree, Computer Software Engineering, Bachelor's degree, Computer Software Engineering at Shanghai Jiao Tong University
Chinese, English
Github Skills (52)
python10
machine-learning10
tensorflow10
deep-learning10
data-science9
ml9
deep-neural-networks9
entity9
neural-network9
entity-framework8
sidecar8
use-http8
pubsub7
ent7
yahoo7
Programming languages (3)
Github contributions (5)
hongjic/nanotwitter
Sep 2016 - Jan 2020
Contributions:111 pushes, 7 branches in 3 years 4 months
hongjic/sgw
Jan 2018 - Apr 2018
Contributions:89 commits, 65 pushes, 10 branches in 3 months
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