Cheng Wai Fat, Fatfat

Working in a startup since graduate, responsible for the backend stack on AWS of the company for more than 1 year. Freelance on website development. Experience in ML/AI for some small projects on vision and speech.

Love creating new tools/things to help people/myself out. Love being efficient and elegant at the same time.

Current interest is being a full-stack developer. Love Astronomy.

Backend Developer
[email protected]

Work Experiences

Wunder Limited, Software Engineer, Jul 2019 - Now

Wunder is the first such personalized app for new parents, designed to give parents the right information at the right time and boost baby's cognitive development.

It can used to track baby's critical milestones, recommends developmentally-appropriate activities that combine fun and learning, and supports emotional bonding.

I worked here for more than 1 year, mainly responsible for the backend development (on AWS). Ranging from managing database, integrating AppSync, deploying machine learning models, to writing Lambda script for controlling business logic. I also have a touch on the device firmware and middleware (written in Python) sometimes.


Oyalabs Limited, Software Engineer Intern, Jul 2018 - Aug 2018

1. Researched on NLP topic regards the baby voice and speech recognition
2. Built and maintained an AWS backend server for natural language processing
3. Built and maintained an XMPP chat server



Shun Tak Fraternal Association Leung Kau Kui College, 2008 - 2015

HKDSE result: Maths 5**, M2 5*, ICT 5**


B.Sc. in Computer Science, The Chinese University of Hong Kong, 2015 - 2019

Dean's Honours List (2016/2017)
Graduated from ELITE Stream and Intelligence Science Stream


Prior Project Experiences

Experience in backend development using Amazon Web Service, particular in S3, lambda (Python), AppSync (GraphQL), RDS (MySQL), DynamoDB, IoT, API Gateway, ECS 

Experience in website development 

Experience in some ML/AI projects, particular in image processing, speech/words using pyTorch and TensorFlow

Some experience in React Native mobile App

Skill sets

Experience in designing and implementing RESTful API

Experience in designing and implementing SQL/NoSQL Databases

Experience in using Figma and Adobe XD

Proficient in git and Docker


Native Cantonese speaker, fluent in Mandarin and English

Proficient in Python, C, Java, Pascal

Proficient in HTML, CSS, JS, jQuery, ReactJS

Experience in React Native

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