5x AWS certs - https://www.credly.com/users/xuezheng-ma/badges

Acquired by Salesforce. Engineer #14.

Low code platform. Kotlin + TypeScript + Terraform. From seed/stealth to 40M series B.

YC S16. Engineer #1. Semantic voice search. From scratch to 2M users. Building products, teams, and engineering values.

Leading Mosaix, an open API: https://www.mosaix.ai/

TypeScript + Node.js + Express + MongoDB + Redis + Elastic Search, etc.

Owning overall company wide infrastructure and devops.

Bitbucket pipelines, Docker, Dockerhub

AWS ECS, Service Discovery, ELB, route 53, VPC, Security Groups, EMR, EC2, etc

Led Mosey, a mobile app: https://itunes.apple.com/us/app/heymosey/id1307284408

React Native + Redux + Firebase

Acquired by amber mobile. Engineer #3. 10M downloads Android app, Apex Launcher:

https://web.archive.org/web/20210220023131/https://play.google.com/store/apps/details?id=com.anddoes.launcher

Updated from Android 4.0 to Android 7.0.

Added more gestures.

ProofMe, from 1k users to 40k users. https://www.producthunt.com/products/proofme

Implemented feature to export canvas as PDF annotations.

Pitched a Canva integration Chrome extension to CTO with a MVP. Implemented and released the extension on the chrome web store.