Last seen: Jul 30, 2014 1:55 PM EDT
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Rate: $16.00 USD/hour
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Tri Do Quang

iOS, Android, C#, PHP Senior Developer

Username: dotri84

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Location: Ho Chi Minh, Vietnam

Member since: February 2011



(100 reviews)

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5 users have recommended this freelancer.

My skills:

  • $396.00 USD
    Profile image for Seller vanderjas


    15 days ago

    Another app, another EXCELLENT project from Tri. Looking forward to continued work. Tri is a very valuable member of our team.<br/>

    Project Description:Please take a look at screenshot of storyboard. Facebook Login code is already in project. Just need to have it formatted to match my layout. Create FB share, Twitter share (like BrazilEats) and button to open web view...
  • $200.00 USD
    Profile image for Seller sacdeliposta


    21 days ago

    He is awesome, did what I asked him on a timely manner. I will surely hire him again if i need to.

    Project Description:Need to pull data from API service
  • $54.00 AUD
    Profile image for Seller btlamont


    Jun 24, 2014

    Thanks for your help, will definitely use again if we have similar work.

    Project Description:We have recently been tasked to update an existing iPad app by a client. iOS applications are outside of our companies normal range of services. We have made the changes to the app in xcode and can run it on our physical device without issue directly through xcode...
  • $85.00 USD
    Profile image for Seller semiya


    Jun 17, 2014

    He is a great developer. Hope work with you soon!

    Project Description:Hi, I&#039;am looking for a developer who can make some graph by using rails.
  • $414.00 USD
    Profile image for Seller vanderjas


    Jun 13, 2014

    Tri, really worked hard on this project and it was not with its challenges. Great developer. Hiring for ongoing work!

    Project Description:Part 1: Create web (server side) application that contacts for latest scores/standings every 90 seconds. Store results on our server so we can fetch from app when user opens/refreshes. I can send you API key Fetch &amp; Results documentation attached...
  • $29.00 USD
    Profile image for Seller jtoelle


    May 30, 2014

    The project was handled extremely quick and on budget. We'll use again on more projects.

    Project Description:Create an IPA of my xcode project to verify the code is working. If the code is working then I need you to submit my existing xcode project to iTunes.
  • $495.00 USD
    Profile image for Seller vanderjas


    May 26, 2014

    All I can say is that Tri got us over the line. App delivered and in the app store. Great developer, amazing communication and an independent worker. Definitely will be hiring for the next project.<br/>

    Project Description:As per PDF. 12 hours @ $18/hr
  • $90.00 USD
    Profile image for Seller vanderjas


    May 18, 2014

    Fast, efficient, right first time! Tri is an exceptional Freelancer!

    Project Description:Phrasebook &amp; Dictionary
  • $670.00 AUD
    Profile image for Seller sentinus


    May 17, 2014

    Thanks! Delivered three apps - iPhone, Windows Phone and Android - and worked hard to make sure they were all bug-free and functioned well.

    Project Description:I need an app built using HTML5 and Phonegap, which compiles to an iPhone, Android and Windows Phone 8 app using Phonegap Build. The user journey is this: 1. User opens app 2. Screen shows camera display and text with current location 3...
  • $500.00 USD
    Profile image for Seller jtoelle


    May 16, 2014

    The project turned out good, we'll use again on future projects.

    Project Description:I&#039;m looking to build a Mockup in Phonegap based on this app: I need you to design a UI that can be navigated so we can use it as a Template...
    Tri Do Quang has not completed any projects.
  • $526 CAD In Progress

    Hello Freelancers,I need some small additions done to my already existing project. The app is compatible with iPhone and iPad. It also important to mention that it is NOT written in Swift, just Objective C. The job will require you to add some minor features to the app (two to be exact). You can read about the things you will be completing in the PDF provided below.Thank you for your time.

  • $150 USD In Progress

    Need to change 4 different apps (2 Apple and 2 Android) to allow the user to remain logged in.

  • $355 USD In Progress

    As described in our conversations

  • [Sealed] In Progress

    As per our discussion15 Day DeliveryPhonegap Project.

  • $800 USD In Progress

    The application will determine the users direction of travel and road, then look for gas stations on that path with minimal deviation from the current path. I would like to have the gas stations information collected from the Google Maps API or similar. Admob or another ad platform integration, and release into the app market are required parts of the project too.I would like to pay you in 4 milestone. One to get started, one upon successful demo, one upon completion, and last 1 week after successful app store upload. Thank you for your consideration! Darren B.

  • $750 AUD In Progress

    I need a quote for an iPad app. It will display a feed of information, news, display videos and have a method for users to contact the business.Full scope provided to shortlisted freelancers. Please reply with your approximate hourly rate and examples of apps you have created that I can look at.

  • $15 USD/hr In Progress

    1. The app has to read a .csv(comma separated value) file from a WebDAV location (hosted by Apple&quot;s Wiki server 4) - you have to choose a working library for this, I have no idea how to get this done. 2. then take all this information display it to the user who selects some of it. ( this can be detailed but it is rather trivial, two roller selectors all the other data is addition and substraction&quot;3. This selected data has to be sent to a printer on a Ethernet ip. (SDK available and working, it is already available, it&quot;s so easy I tested it myself)4. Current GPS location has to be retained and stored in a log file. (open to suggestions on how best to store this data for later use.

  • $94 USD In Progress

    MAX BUDGET 100 USD, but it&quot;s probably 3 hours of work.I have a fully working existing iOS application for iphone and ipad: the current version is published already on the app store since 2011. I need to do complete the new version which require to fix some bugs and add twitter/facebook integration.Attached you have: - Next Game Live.pdf : the current app- Next Game Live V2.pdf : the specifications of the new code with the bugs to be fixed- Next Game Live NotIOS.pdf : the details on the twitter/facebook integration.- The latest test document reporting the active bugs.The most important bugs are:- check the updating mechanism: I expect the update to be requested EVERY time I open or reopen or reactivate the app, the current version is ok only if the app is restarted;- the InApp purchase should keep the user waiting with a popup (now it&quot;s not present and the user can click around a produce a mess)IMPORTANT:AFTER bidding acceptance I will share with you the code.BIDDING higher than 100 USD will NOT be accepted.BIDDING from not ranked (or new) developer will NOT be accepted.

  • $1052 USD In Progress

    An Mac App that “finds” unused files and cleans your hard drive. The app scans a number of predefined locations on the mac and list them with size of the location and option to clean that location automagicly. When the user has selected what to clean the app should remove all files at the locations.

  • $1800 USD In Progress

    [This is a Private Project. You must be logged in to view the Project Description]

  • $34 USD 5 days ago

    Finished my game for both iOS and Android. Having issues uploading to app store. Need someone to troubleshoot. Should be a very simple task for someone who knows what they are doing

  • €252 EUR 16 days ago

    I have a iOS mobile app with the correct UA-XXXX-X tracking ID however it is not displaying in Google Analytics and we need to figure out what is the problem.- Check the iOS app file and coding.- Fix the code- Upload the appMust be experienced in iOS / xCode / Google Analytics. I will give the information to the awarded bidder.

  • $94 USD 28 days ago

    I am looking for someone to fix my cost saving app that is available on android and apple. It is all coded however there is a slight problem and the app doesn&quot;t have the right calculations in it. It should be a relatively easy fix as i just think some of the maths is wrong. I have taken it down from iTunes, however the app can be found on Android under the name &quot;Convertabulb&quot;.I can provide you with all the code you need should you think you are able to fix it.Thanks.

  • $16 USD/hr Jun 29, 2014

    Contact me on chatContact me on chatContact me on chat

  • $16 USD/hr Jun 17, 2014

    Cell phone hack for fb acces and sms view

  • $500 USD Apr 19, 2014

    Hello i need a poker game which we can use for playing with our crypto currency can you help?

  • $3000 USD Apr 18, 2014

    I have a new app concept for screen lock security, I have pending investors and need a working prototype to demonstrate the concept, I will require a NDA and NCA.

  • $10 USD/hr Mar 2, 2014

    I am a php developer. I would like to run iOS7 development. Can you help regarding my goal?

  • $360 USD Jan 26, 2014

    This project is to create an iPhone / iPad app that allows a user to check their domain metrics. Here is a tool that works the same as what I want: user will be able to track multiple domains using the tool.

  • $600 USD Jan 18, 2014

    I&quot;m looking for an talented Android developer to port one of my iOS apps to Android. The app can be downloaded here: promo codes will be provided on request.The app should act and behave as on iPhone/iPad except for the dynamic resize of the screen depending on the device resolution. All assets (artwork and sounds) will be provided. The freelancer must provide the source code. A seperate IP / Copyright agreement must be signed. Source code ownership and copyright will be transferred.Please don&quot;t hesitate to contact me if you have any further questions.

  • $30 SGD Oct 24, 2013

    Hi, i have a ruby Huffman compression problem that I have been stuck for the last few days.Basically, i would need to use Huffman tree to compress a file with as high compression rate as possible and also to maintain fidelity rate of at least 80%.I tried to do it but my compressed file got 99% in term of compression ratio but only 0.6% in term of fidelity rate. So i think i did it wronglyI really really hope you can help me out,thanks

  • $25 USD Oct 12, 2013

    I need to fill a Table View with data of a Json , when press a list element open another view with some information of the element pressed that information is on the Json too.

  • $16 USD/hr Sep 19, 2013

    I believe my wife is cheating on me but I can&rsquo;t prove it so I need a software/programme to get into her Iphone 4s remotely so that I can listen into her phone conversation, text messages and Whatsapp chat. I have looked everywhere on the internet but can&rsquo;t seem to find anything. If I can&rsquo;t get into her mobile phone to access everything then I will be happy with someone providing me with software to at least get into her Whatsapp. I can&rsquo;t get access to her phone physically to download jailbreak or anything so this needs to be done remotely.Can you help

  • $2000 USD Aug 26, 2013

    I am seeking a programmer/iphone app developer who can develop an iPhone app that will be able to organise and display data scraped/mined from multiple websites, as well as use the data to preform functions inside the app (Will explain more to bid winner)I want to create an iPhone app that will essentially allow people to determine needed information only available on the web and use it for other functions. THE DATA:- I need a script that will scrape the data i need and re-organise it and serve it to the app for output- I need a script that will monitor changes to the data and update the database and serve to the app for immediate output- I need a script that will use this data to determine whether an alarm goes off or not. Happy to take advise on the best way to get the data from a website to the app, and for it to be as instantaneous following updates to the website data. Do i need the data scraped then organised into a database first before served to the app or other methods? What server needs to i have if any?THE APP- iPhone- Code the UI for multiple screens- Organises and outputs data scraped from 2 specific websitesFeatures:- Optimised for portrait and landscape- Simple Search- Setting up &quot;My Favourites&quot; - allows user to define the specific data they want to see without having to search each time- View &quot;My Favourites&quot; information- Set/activate alert tone when updated data received for &quot;my item&quot;- Alarm function - Allow users to create specifications on when alarm should go off- Nag/more screenTechnical Tasks- install flurry analytics- provide testing prior to UAT- install iAds- assist in submitting to app store- advise and set up of server requirements- install &quot;Rate My App&quot; push notification - i have the code, just need it installing.I need this job completing quickly, and would like you to provide me with the following for review prior to interview...- examples of any design/programming on the iPhone or other mobile applications- examples/details of any data scraping/mining tasks you have completed- links to any previous applications that are available in the App Store- based on the little amount of information i have give you an estimate on number of hours/days to complete in full, including UAT and bug fixingPlease include testing in the bidI need the candidate to be available to discuss on either Skype or Gtalks instant messaging platforms throughout the project durationIn response to this job posting please provide the code word &quot;KOKOMO&quot; so that i know you have taken time to read the whole post. I will automatically decline applications where the code word has not been given.I am separately seeking someone to do the UI design but if you are able to provide UI design work as well please include as a separate item in the bid price and provide examples of your UI design skills. I have technical documentation ready to go once i have decided on the development team and discussed a few areas needing advice.

  • $611 USD Aug 23, 2013

    I would like to enable users to upload pdf files from third-party sites to my site. I already have functional apps written for Android and iOS that accomplish this task and would like the same for Windows 7/8 PCs and other devices. I will make the source code available from Android and iOS builds to assist in conversion to a Windows application.The primary requirements are:1. The application must include a client-side component where users can enter login credentials and interact directly with the third-party sites.2. The server-side component should utilize PHP.3. Support for 6 third-party sites initially, with more likely to be added over time.

  • $100 USD Aug 19, 2013

    please i would like to create a chat room for students in my university

  • $666 USD Jun 2, 2013

    Hi,Please see the attached DOC for the full description and needs.The application is simple in its use. All it does is it lets the user run through a movie, and at any given time where the user wants to add comments about the movie he does so. The comments are added to a list on the side that eventually gets saved using the movie filename and path and the extension of “*.notes”. The notes file stores the actual notes, their timecodes, the user who wrote them and his chosen color.Each user puts his own name and chooses a color – which then lets you see who wrote which comment on the list of comments on the side.This application was written in Java so it could equally run on PC and Mac computers the same way. For each platform there should be a small installation (The latest are attached along with the latest code).There are remaining notes listed in the attached DOC file. Please go over them and let me know if you can complete it and what you would charge.Thanks,Dani.

  • $1500 USD Jun 1, 2013

    Hi, do you have skype account? my skype name is &quot;kz_man&quot;, contact me please

  • $35 AUD May 27, 2013

    I need an iPhone/iPad app created, all it will do is open the default browser on the iphone/ipad and display a webpage

  • $500 USD Apr 12, 2013

    I have an ongoing android game development of an old dos game remake to operate over the phone.i want an expert android developer that can handle the svg graphics, the physics and the graphics of the game.the game resources are ready and all that remain is to finish the development.i will send the latest apk to good enough candidates.

    Tri Do Quang does not have any open projects.
    Tri Do Quang does not have any work in progress.
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Sep 2011 - Dec 2011 (3 months)

EPFL cole Polytechnique Fdrale de Lausanne)

Do internship with business modeling<br />Pratice UML modelings with case studies<br />Do research on Scala language

C# Developer / Mobile Developer (iPhone)

Apr 2010 - Present (4 years)

Scrum for development.<br />Jobs received from Norway via Email, Skype chat/video.<br />Apply Design Patterns in projects.<br />*** April 2010 - June 2010: (Silverlight)<br /><br />Build Silverlight application to manage company's employees using Infragistics controls.<br />*** June 2010 - Now: (iPhone/iPad)<br /><br />Work with iPhone to develop iOS 4 (iPhone, iPad)<br />Develop Stock App for European Markets (Name: Marketmind Mobile Trader - Available on App Store).<br />Inherit some best features from Stock (Yahoo), CNBC and Bloomberg Ap

Web Developer (ASP.NET)

Jan 2008 - Mar 2010 (2 years)


Work with SharePoint (WSS 3.0 and MOSS 2007).<br />Program Web Part for SharePoint + Programming functional website for customers including calendar section, appointment section, task section... using new technologies of .NET such as LINQ, AJAX, .net 3.5...<br />Use DevExpress components <br /> ===========================<br /><br />Develop many websites to manage multi-level users playing casino game outside Vietnam.<br />Work with .net 3.5, Visual Studio 2008, WCF, jQuery, MS SQL and LINQ<br />Develop website with concentration on p



Dai hoc Quôc Gia Tp. Hô Chí Minh



Dai hoc Quôc Gia Tp. Hô Chí Minh





This certification exam measures your ability to develop applications using ASP.NET in a development environment that uses Microsoft Visual Studio 2008 and Microsoft .NET Framework 3.5


Systematic Diagram Refinement for Code Generation in SEAM

IEEE Press