Welcome to Laputa — a digital island drifting between computation and contemplation.
I’m Jianyong Chen, a software engineer exploring CDN infrastructure, serverless platforms, and edge computing — building at the edge, and capturing life at its edges, too.
Here you’ll find:
- Blog posts on performance, distributed systems, and low-level optimization.
- Projects I’ve built or contributed to.
- Photographs from my travels — mountain trails, ancient streets, modern skylines.
This is a space for thought and memory, grounded in bits, yet reaching beyond.
Professional Experience
I’m passionate about system programming, distributed systems, performance engineering, and low-level optimization. I’m most comfortable with C/C++, Go, Python, Lua, and JavaScript.
- TikTok (London) — Jan 2025 – Present
TBD…
- Tencent (Shenzhen) — Jul 2021 – Jan 2025
V8‑based edge runtime (Web Workers APIs, sandboxing, resource limits) and Lua scripting platform with in‑house API extensions.
- ByteDance (Beijing) — Nov 2019 – Jul 2021
Ads assembly & dispatch pipeline for Douyin/TikTok feed plus policy‑violation feedback loop.
Open Source Contributions
I actively contribute to open-source projects, particularly in systems and infrastructure. Notable contributions include:
- OpenResty — fixed the implmentation of
ngx.re.*APIs - Seastar — optimized the WebSocket implementation
Engineering Philosophy
I value simplicity, composability, and understanding systems from the bottom up. Optimizing for correctness and clarity has always been my priority.