iOS & Mobile Engineer
Dai Khac
Nguyen
Ten years of shipping apps people keep on their home screen.
iOS engineer with 10+ years building apps for health, lifestyle, and social media. Swift, Objective-C, UIKit, MVVM — shipped apps with 2M+ downloads and a 4.8/5 App Store rating.
On the App Store
10+ years · 2M+ downloads · 4.8/5
About me
I started on iOS in 2013 and never really left. Most of that decade went into consumer apps — the kind with millions of downloads, where a dropped frame or a 200ms delay is something real people feel. That taught me to care about performance, offline behaviour, and the unglamorous work of keeping a codebase alive across years of feature churn.
Lately I have been deep in real-time media — video and voice streaming with Agora SDK and WebRTC — and in cross-platform work with React Native. I lead small teams, mentor juniors, and generally believe the best architecture is the one the next engineer can read without a meeting.
Philosophy
Ship it, measure it, then make it faster.
Stack
Native iOS with Swift & UIKit. Cross-platform with React Native.
What I've shipped
See all 2 apps
Pomodoro — Focused, Ticking Away
2025A focus timer that keeps the Pomodoro technique honest: work, break, repeat, with the ticking that tells you it is still running.
Gia Phả — Family Tree
2026A Vietnamese family-tree viewer. Members live in Markdown files, load from a .zip entirely in the browser, and render as an interactive d3 tree.
Get in touch
Open to iOS roles, freelance projects, and app collaborations.