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6 years worked in startup, from US, Ireland, Singapore, published 5 apps and fews commercial projects, I know how to work fast in a startup and how to manage a team, make the app come true and be fascinated.

Work History

Jan 2017Oct 2018

Experienced iOS Developer at Coinhako

Coinhako is the friendliest Bitcoin & Ether Wallet with 100k+ users. Pay much attention in security, architecture and dynamically UI rendering from server.

- Encrypt/decrypt and store data to KeyChain, apply Universal link to confirm transactions.

- Design a flexible architecture, easily expand the business from 3 currencies to 24 currencies, 2 countries to 4 countries.

- Connect Socket to update cryptocurrencies price real-time.

- A voice assistant to enforce your voice command. Demo:

- Update localization on the air.

Technologies: Swift, Clean Swift, Core Animation, Git, Pusher, Auto Layout Programmatically, Today Extension


May 2016Jan 2017

Experienced iOS Developer at Fixir

Fixir is trusted companion to help drivers find the most reliable workshops.

- Get more requests by using new detail collection system like a step-by-step chat bot.

- Eliminate 100% manual progress by building matching system and chat between drivers and workshops.

Technologies included: Swift, FCM, Google Map, Core Animation, Git, NodeJs,, AVFoundation, Core Location

Jun 2014Apr 2016

Experienced iOS developer at MOCA

Moca is a safe and convenience mobile payment. Very popular in Vietnam, especially in Ha Noi. Pay bills at merchants partners in 20 seconds with scan QR code only. 

- Migrated Objective-C to Swift

SDK to be integrated from partners.  

- Generics design for multi bill types and receipts. 

- Promotion system

Technologies: Swift 2, MVP, Push Notification, Fabric, MapKit, Deep Linking, AddressBook


May 2013May 2014

iOS Developer at Snapbuck

Snapbuck is a platform pay back to user when they come a to coffee shops, event places and take a photo. 

Technologies: Swift, MVP, Push Notification, Fabric, MapKit, Deep Linking, AddressBook

Other Projects

SNAPSHOP - Freelance project - UK

Snapshop is a fashion market place to buy (user role) and sell (merchant role), from streetwear to luxury brand.

Technologies: Swift 4.2, Clean Swift, AWSS3, AWSCognito, HockeyApp, Stripe, Spreedly, Firebase


8DWAVE - Side project - CA

8DWave is a stream music player, support playing music online/offline. 

Technologies: Swift 4.2, Clean Swift, In-App Purchase, Firebase, Realm 

OGENII - Side  project - VN

Ogenii is dynamically connect learns to teachers and help users learn/teach anytime and anywhere they want. I take responsibilities for everything about tech, backend (Node.js), database, server, web and iOS. Easily start learning with social network login (Facebook, Google). Pick place to learn and get direction by Google Places and Maps. Keep update with new classes and activities via Firebase Cloud Messaging. Cool UI with gradient color effect.

Technologies: Swift 4, Clean Swift, Facebook LoginKit, Firebase, Fabric, Firebase Cloud Messaging, Google Places, Google Maps, Apache, Node.js, Ubuntu, MySql


OPIYN - Side Project - IN

Opiyn is mobile interactive reviewing experience, see thousands of reviews in one quick glance and give a review with just one touch. To do that, I had to customize the UITextView to show actions popup, rendering multiple font in one UITextView. Interested UI with Pinterest Layout (limping height, 2 columns collection view), Parallax Header Tab, Tinder card style for Notification. Geofencing location around user location.

Technologies: Swift 2, MVP, Push Notification, Fabric, MapKit, Deep Linking, AddressBook


WEBGAFF - Freelance Project - IE 

Experience property search on an exciting level with the WebGaff app. Take your property search anywhere and everywhere. Search for residential rental properties nationwide and connect with property owners directly with WebGaff. Instant 1-1 chat to discuss via, street view and map view with Google Maps, geofencing to find properties around location.

Technologies: Swift 2, MVP, Push Notification, Fabric, Google Maps,



knConstraints is a library for Auto Layout Programmatically with very short syntax, clean code.



iOS: Swift, Core Animation, CocoaPods, Auto Layout Programmatically, Push Notification, MapKit, Core Location, Interface Builder, In-App Purchase, Realm 

Others: Google Maps, Google Place, Facebook SDK, Git, Fabric, Firebase, Flurry, MixPanel, Google Analytics, NodeJS/Express, MySQL, Apache, Ubuntu, Sketch, Photoshop, Charles, Instagram, Mailgun, Mollie, Paypal, Stripe, Spreedly



Speaker at Geeky Weekend on "Swift Talk 2: Quality Battle"


Trainer Assistant for Subhransu Behera on "TopDev Techtalk: Free Swift Tutorial Day"