Donggeun J.

Donggeun J.

Full Stack Android developer

Suwanee , United States

Experience: 15 Years

Donggeun

Suwanee , United States

Full Stack Android developer

48000 USD / Year

  • Immediate: Available

15 Years

Now you can Instantly Chat with Donggeun!

About Me

Hi! My name is DONGGEUN JUNG. Call me Dennis.
I'm looking for an Android native application developer position.

I have 5 years experience of Android native application development using Java.
2 year of Tizen, 1 year of Hybr...

My best skills are making architecture using Object Oriented Programming,
and making UI custom controls using Canvas API.
I make architecture as a framework. It's a kind of reusable library.
So main source code is simple and management is easy.

I usually use MVVM design pattern.
To communicate with server I use Retrofit API.
To store Data I use ViewModel and LiveData.
To display data on Activity or Fragment I use Databinding.
To perform a job taking long time, I use RxJava instead of AsyncTask.

I wrote a book about making UI custom controls.
Such as picker control or chatting timeline.
So I am good at making UI custom controls using Canvas API.

I have 8 years experience of C++, and 5 years of Java.
Additionally I wrote Java guide books.
So my Java skill is excellent.

I have developed over 10 Android applications, 
and some of them are uploaded in Google play store.
When I worked for Samsung, I developed a part of source project,
and when I worked for small companies I developed the whole part of source project.
Additionally, I wrote android SDK guide book. 
So I can develope all part of Android application by myself.

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Portfolio Projects

Company

Miss Planner

Description

Weekly planner Android app

The rold of app : Repeat showing weekly schedules. Run alarm using service.

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Skills

Android

Company

MyPrice

Description

Reverse auction market app

Main duty: Developing hole Android application. Making custom controls (Auction animation). Using HTTP & WebSocket communications. Rest API, Push message receive & show (FCM)

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Skills

Android

Company

Bluecanvas

Description

Slide show pictures & videos IOT machine

Main duty: Developing Android launcher of Digital album and pictures & videos viewer in Android platform. Developing communicate process with server & file downloader

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Skills

Android

Samsung Mobile MES

Company

Samsung Mobile MES

Description

Samsung Electro Factory product management hybridapp

Main duty: Developing Android native part. Http communication, SQLite.

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Skills

Android

Tools

Eclipse

Lotte MD Mobile Manager

Company

Lotte MD Mobile Manager

Description

Lotte Mart management HybridApp

Main duty: Developing Android native part. (Print barcode & read barcode, Inventory management, Android, PhoneGap(Cordova), MDM, Bluetooth printer, Take picture by camera, Read barcode, Push message, SQLite) Rest API, Push message receive & show (GCM)

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Skills

Android Hybrid

Samsung Asset management

Company

Samsung Asset management

Description

Main duty: Developing Android native application. / Environment : Android smartphone, Java, HTTP communication, Barcode reader.

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Skills

Android

Tools

Eclipse