Yin Yuguang
iOS / TECH LEAD / INDIE · BEIJING
In one line
Ten years of iOS. Led teams of 20-plus, shipped eight apps, three still running. iOS by trade — backend, ops, design and launch ops all self-taught, forced by shipping products alone.
Experience
- MiraiMindTech Lead2024-01 — now
Leading 20-odd people across four technical tracks. First time running that many directions at once.
- TietieClient Lead / Tech Lead2022-01 — 2023-12
Wrote it from an empty repo to the App Store, alone — then took over the whole client.
- MomoSenior iOS Engineer2020-11 — 2021-12
First time writing code inside a large-scale social product. A completely different engineering world.
- Fazhijin · Xiaohua AIiOS Dev / Mobile Lead2017-11 — 2020-10
At the 2018 Ritz-Carlton launch, the mobile product was mine to build — and mine to present.
- Helian GongyingiOS Dev / iOS Lead2016-07 — 2017-10
First job, and the entire iOS client was just me. I also demoed on stage at the 2017 whitepaper launch.
Products
- MiraiMind2024Custom AI characters and companionship. Dialogue, long-term memory, character growth, content generation.apps.apple.com/us/app/miraimind-create-your-own-ai/id6502377840
- FreeLingo2023AI vocabulary app for multilingual learners. Turns real study material into a review plan you can actually keep up with.freelingo.wenyanji.com
- Modian2017A local 700k-word English dictionary with Ebbinghaus review. Lock-screen study, zero ads.modian.aiyinyu.com
Closedego ID(2020) Minuos(2020) Vekfen(2020) Li Yan(2018) Molu(2017)
Technical writing
14 long-form pieces on iOS internals — RunLoop / Runtime / GCD / memory / launch time
https://blair.aiyinyu.com/writing
Also
Organizes off-road expeditions: Sishilixia, Laozhanggou, Aotouzhai, Zhulinsi, Hunshandake, Qinghai–Gansu Loop.