Jacky Efendi
Product Engineer, Frontend & beyond.
I build for the web: performance, design systems, developer tooling, and the product interfaces people actually use. Frontend is where I go deepest, but I've spent enough time in the surrounding infrastructure to understand how the whole thing fits together.
8 years in, 5 fully remote across teams on 5 continents. I've come to believe async work runs on a few things: writings that leave little room for guessing, questions asked early but not treated as blockers, a bias toward making progress with what you have and trust that everyone is doing the same.
Featured writings
All writings →1-billion row challenge with Node.jstech
7 Jan 2025 · 14 min read
Web security implications of 3rd party resources 🕵️♂️tech
28 Jan 2023 · 8 min read
Writing Your Own CSS-in-JS Librarytech
26 Sept 2020 · 10 min read
Building 60 FPS QR Scanner for the Mobile WebTokopedia Engineering
8 Jan 2020 · 6 min read
Getting Content Painted under 2 seconds on the Mobile WebTokopedia Engineering
30 Jul 2019 · 9 min read