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Jincheng921

High-Skilled iDeveloper & Social Photo Sharing App Expert

Username: Jincheng921

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Location: shenyang, China

Member since: September 2013

Reputation:

5.0/5

(14 reviews)

5.8
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2 users have recommended this freelancer.

My skills:

My projects:

  • $1470.00 AUD
    5.0
    Profile image for Seller paulwest80

    paulwest80

    7 days ago

    Fab work!!!!

    Project Description:I need someone to write computer code, do my app idea for me. I dont think it will be too hard for someone who knows how to do it.
    [more]
  • $264.00 USD
    5.0
    Profile image for Seller dfogaza

    dfogaza

    14 days ago

    Great job!!! I will continue working with this freelancer.

    Project Description:I am looking for someone with very good expertise with modifying php website templates. I need three different templates for websites games oriented.
    [more]
  • $1052.00 USD
    5.0
    Profile image for Seller dfogaza

    dfogaza

    23 days ago

    Great developer, very responsible and methodic.

    Project Description:We are looking for junior game developers for android/html5.
    [more]
  • €1233.00 EUR
    5.0
    Profile image for Seller freelancelover

    freelancelover

    Jun 26, 2014

    2 time I hire, second time excellent work. thanks

    Project Description:I need an android function (NOT A ENTIRE APP) that given a Bitmap representing a picture with one or more person, it return a Bitmap representing the same picture with only the persons and a transparent...
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  • €603.55 EUR
    5.0
    Profile image for Seller freelancelover

    freelancelover

    May 16, 2014

    great freelancer, excellent job. Will hire again

    Project Description:I need a simple app which can detect smiles from camera. The smile intensity" must be detected too (eg. very smily ,smily, little smile, no smile and so on) never more, never less. I need full app source...
    [more]
  • $100.00 USD
    5.0
    Profile image for Seller mobileappsmaker

    mobileappsmaker

    Apr 11, 2014

    A++ FASTJincheng is an amazing developer with great experience in what she is doing. I was happy working with her and I will defiantly hire her for many other projects. 


    Project Description:Hi, I don't have time to complete a specific task. I have a project that uses Zxing, and was developed using Xcode 5.0. I am using Xcode 5.1 and I can't get it to compile or archive (to send to apple)...
    [more]
  • $300.00 USD
    0.0
    Profile image for Seller xcience

    xcience [ Incomplete Report ]

    Apr 7, 2014

    I selected Jin Cheng because of her excellent ratings and feedback. She bid the job at $526, but changed the amount to $752 after being awarded. I asked to verify repeatedly she understood my complicated project with VERY specific requirements multiple times before releasing the first milestone. I provided example apps as well. She said she understood completely but days later she provided a partial app that was not at all what I had requested. She then requested the second milestone but I declined until she demonstrated she could accomplish making my complicated project. After being unable to complete the task she offered a refund. I insisted I pay her a portion; we agreed she would refund me and create a new milestone for payment. She stopped responding and provided no refund. Cons: Pushy about the initial milestone despite not carefully evaluating my project.

    Project Description:I am interested in developing an App that can be used with the existing app "Snapchat" Snapchat is used to send photos to friends which are manually selected from a list of contacts. In snapchat the user...
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  • $252.00 USD
    5.0
    Profile image for Seller yomfaj

    yomfaj

    Mar 28, 2014

    She is very professional, very hardworking and so quickly understand my project. she is a joy to work with and I will definitely hire her again

    Project Description:We have an existing IOS Application that need some minors update and added security.
    [more]
  • $294.00 USD
    5.0
    Profile image for Seller yomfaj

    yomfaj

    Mar 19, 2014

    She is the best freelancer I have work with. She provided brilliant result with very high skill and professionally and on time. I will definitely hire her again

    Project Description:We have an existing App on both Andriod and Iphone that we need to update
    [more]
  • $200.00 USD
    5.0
    Profile image for Seller McKinnr

    McKinnr

    Mar 18, 2014

    Once again I am completely satisfied with the world done and look forward to working with in the future.

    Project Description: Fix small pieces to an iOS app
    [more]
    Jincheng921 has not completed any projects.
  • $1578 USD In Progress

    Hi, i am looking for a serious IOS and Android App developer to convert the following website links to an App.www.buzzapp.com/directorywww.buzzapp.com/classifiedsPlease once again only serious developers.

    [more]
  • [Sealed] In Progress

    I need a program for smartphones that can record telephone calls. The same should have a settings of options for language selection, data to delivery the attachment using the e-mail or wi-fi for sending files saved in MP3 after the recorded call. During recording, the application should allow the use of the dial pad for possible selections during the call, without it interfering with the recording. We need the source codes to personalize the screens and add some features in the future.

    [more]
  • $21 USD/hr In Progress

    I want to make an android game

  • $526 USD Today

    Application that tests childrens math basic math skills. Addition, Subtraction, Multiplication and Division up until 12*12 for now. It would have Levels from 1-12 to indicate the Number the child is attempting to learn. Level 1 would be all additions, subtraction, multiplication and division problems up until 12. They would need to be timed with a minute to complete all Addition problems per level. Another time for all subtraction per level and the same with Multiplication and Division. Would like Bronze, Silver and Gold medals based upon the time completion of all equations for Addition on Level 1 and so forth. I would like the fixed background to mimic a chalkboard to display the current math equation and quickly change to the next equation with the same fixed background. same background for Menu. Menu would be locked until child completes Level 1, unlocking the next Level.

    [more]
  • €242 EUR Today

    We need simple "check in" app for iPhone devices based on Facebook account a our web API. There is complete Use Case in attached file which we need to implement in our app.Long term collaboration possible, because we will expand this app in the future.

    [more]
  • $1052 SGD Today

    Hi, i wish to design an app to be used to indicate the user"s current emotional status or feeling, eg bored, sad, hungry, impatient, tired, stressed etc. Thereafter, a series of results will happen, much like a phone profile setting. It might be preconfigured by user, or predetermined by the app admin. For example, if user select "sad", a happy face might show up periodically, some of his/her favourite pics (predetermined during setup) will be flashed on screen, some jokes might appear. If "bored" is selected, puzzles or quizes might be flashed, tips on how to get yourself busy can be shown etc etcThe app will also tracked user location, and can also show to user, how many people are having the same feeling as him within his radius. Project to be available via Android first, and to be available as Iphone app if all goes well.

    [more]
  • $1052 USD Today

    I would like to have a match 3 game developed for Facebook, Android & iOS Each game should come with 4 different skins (which I will provide graphics for) & each version will need to have multiple languages (about 5) which I can provide translations for. Between games I would like to have one of a selection of banners pop up, which I will also provide, and I would also like the mobile versions of the app to link into the Facebook API feed to allow sharing of scores & a leader board. In-app purchases are also a requirement.If you are able to provide this service, include the cost of app store submission as wellThe quote you give me will be the quote that you are held to, as is the timeline. If I choose to award the project to you and you start giving new quotes or delivery estimates, I will award to someone else instead. In addition, any quotes need to be accompanied by a detailed breakdown of the costs sent by PM EG Skinning =$X x4, Language Integration =$XAn agreement will be provided to the winner of the project to ensure that any assets provided by me for the development will not be reused for any other clients.Also, any form responses that do not actually address my requirements will be ignored

    [more]
  • $736 USD Today

    I am wanting to create an app to do the following:1. GPS on telephone will trigger app when telephone is moving more than 5 mph. 2. Once phone is moving 5 mph or more, all texting related apps (messaging, internet, anything beyond telephone function) will result in a pop-up that states “Please wait until stationary to perform this task”. The pop-up will include 2 buttons: “OK” and “OVER RIDE”.4. App will send email and or text message up to 2 recipients. 5. During set up of app recipients can choose options as to which notifications they will receive: A. notification every time app is activated. B. Notification every time app is over ridden. Each notification will include time, date, and location of occurrence. It will also include a password option for parents to password it so the kids can not disable the settings without the parents password.

    [more]
  • $1052 USD Today

    I need programmer with knowledge to my app Image Gallery which worked with api flickr java, which was updated only https and now has stopped working the app only shows me the latest images added but does not show me the content on albums this error its, on click ALL PHOTOS DISPLAY BLANK PAGE No All photos from album.Demo APK: https://www.dropbox.com/s/et8ti986p1y13xh/DEMO.apk

    [more]
  • $24 USD/hr Today

    Preciso de um profissional para o desenvolvimento de aplicativos mobile.Valor a negociar.

  • $2631 USD Today

    This is a outsource project. We are company based in London and we use freelancer.com to outsource the projects that we need extra pair of hand.The project bidder please read and anaylse the project before submiting any bid.Project Description; Our client wish to develop an IOS AND Android App for his minicap company. His requirements are exatly same as this app: https://itunes.apple.com/gb/app/uber/id368677368?mt=8Please note we need the bid with Cost break down IOS Cost and Android Cost & Total Duration of the Project with deadline.Any Deadline pass will have 2% Penalty Charge.

    [more]
  • $1578 USD Today

    We need someone to write an iPhone and Android application for game and result tracking for a game. This is a card playing game, where people can meet and play, then store the result in t his app. The app will rank very person individually, although it is played in groups. So for example, group 1 is playing against group2, but group 1 has person # 1, and # 2, and group 2 has person # 3, and # 4.Person # 1 might be in group # 4 in the next game. Person per group is not fixed (like the football team), it is changing every time.Also, people has to register using special information, such as ID, and the ID is a unique ID.Also, the system must work fine in the offline mode, so everyone can use it to register result, once it is online, the system will send the result to the server, and update the overall result.A detailed reported is needed also.This project has another phase in six month, we are going to do an update and add more features. It is better that you do both Android and iOS, in case you can do only one of them, that"s fine. But you have to consider your price, as we are selecting the best price.

    [more]
  • $5263 USD Today

    i want to create a 3d app for users, the business users (sellers)are able to upload 2d image of product to us and then we automatically convert it as 3d images for users( this part probably we can use a plug-in ) . second functionality is that the users (buyers) are able to try those 3d item in their own avatars.

    [more]
  • $1263 USD Today

    Looking for someone to create an app for both iphone and android which has features like this movie you"ll find here: https://www.youtube.com/watch?v=TbJHCwdUITk requirements: -You must have good references -Star Design -Star on they develop

    [more]
  • $1263 SGD Today

    Hi I want to have an application which cani) Restrict user"s accessing apps as designated by them (Say the user wants to control Facebook. Stop them when they are about to access the Facebook app)ii) Prompt the user to perform multiplication of two 2 digit numbers randomly selected (Example 98*47). ii) If correct, move on to the next question. If wrong, inform the user and ask him or her to try it again. iii) When the user is done with three questions, allow him to continue using the app.

    [more]
  • €1263 EUR Today

    we are looking for team that will create similar game in ios and android like https://itunes.apple.com/app/supernauts/id504504940This game is a social building game based on a fantastic foundation of fun! Join thousands of other players in contests to rebuild Earth, solve puzzles and get creative, all within a highly social multiplayer environment.

    [more]
  • $1052 USD Today

    We need to pack an eBook with built-in reader. The reader must be MoonReader alike supporting all of the features of the Moon Reader.We already have the content (text and pictures) and need to have a PC based environment where we can create final products: eBooks with our contents and MoonReader alike built-in eReader.Optionally we are interested to make the eReader supporting audio, video and 3D content.

    [more]
  • $1052 USD Today

    I am looking for someone to build a mobile app (android and ios) for me. A classifieds listing application, a business similar to http://www.olx.com/I want it to be a simple app, where people can just take a picture of what they want to sell . we need categories and also the integration with social networks (sharing).I am looking for an Iphone and android app developer to build an application to post and browse local classified ads.Must work for Android and iPhone/iPad. At minumum, users need to be able to:-post ads with uploaded photos and geolocation data-browsing by categories or location-search-Respond to ads by email and phone-Settings with language choice, registration -login via the app or via facebook connect, google id- share function facebook etc-view third party mobile ads (e.g., admob ads and others)-IOS and android operating systems requiredOnly serious proposals please.payment as followsphase 1 = 20% after completing phase 1 which is 30% of the project total work (Android App handover phones and tablets)phase 2 = 30% after completing phase 2 which is 30 % of the project total work (iphone and Ipad App handover )phase 3 = 50% after completing the project and handover ( windows and website app handover phones and tablets)the developer chosen will be a preferred developer for all future projects

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  • $3684 USD Today

    Looking for a app for Android similar to "U&Me" app. ( https://play.google.com/store/apps/details?id=com.omtech.uandme )Main functions:-Free Text Messages-Social Sharing (Facebook / Twitter) - Images/ pictures/ audio/ video and status, share everything across social media accounts-Group Chat- Create group & add as many as 1000 people to share relevant information-Attachments- Send files up to 1 GB-Gallery- Share 15 images at a time; get new look to your attachments with ‘Image Filters’-Documents- Send documents/ files of any format Pdf, PPT, Excel, Word and etc-Google Image- built-in Google search option allowing you to attach & share unlimited images at one go-YouTube- built-in attach unlimited youtube video’s-Around Me- Find friends/ updates around, filter search results & develop your network-Events- Participate/ conduct events, rate it/ collect results easily.But again, must have all the functions and features and similar look/feel to the U&Me app.I am looking to build a long relationship with a lot of work to the right Developer. I have a minimum budget, but will keep you busy all year long with work.Thank you

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  • $31 USD/hr Today

    I am looking for someone to help from start to finish a basic app for iphone, ipad and android. I have the basic idea of what i want written down. I just need a little help sprucing it up a bit. I am open to your ideas and I am also open to a fixed price. Let me know if your interested.Looking to create 2-3 mobile phone apps for Android and iPhone in the. Please provide background, time to market and salary expectations. you must have video conferencing capabilities through skype available. .Thanks.

    [more]
  • £1368 GBP Today

    Need someone to create a J2ME application for us

  • $1263 USD Today

    Hi,Please read careful before applying for this position.I am posting this again because the last time I could not find a true developer as most of them were fake developers who knew nothing about algorithm,As my title states, I am looking for an app developer with expertise in algorithm. The app developer should possess some knowledge about indexing algorithm and apps development on iOS and Android version because I need a developer to develop a news app which can crawl news from different websites for each category of news I want.My budget is $1000. I just want a simple news app which can work with algorithm to crawl news therefore the big work will be to implement the algorithm codes into apps. If a developer is not a well developer for app I can get a web app template for the news app and then a developer will only work on implementing the algorithm codes.Also note, I won"t increase or decrease my budget so when you apply for this position you should be aware to stick with given budget and I would prefer to find developers ONLY from USA, Canada and China/Hong Kong.Kelvin

    [more]
  • $5263 HKD Today

    Simple Project. Faster Finish, faster payment.

    Jincheng921 does not have any open projects.
    Jincheng921 does not have any work in progress.
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Portfolio

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Résumé

Experience

Allmost IT software subject

Feb 2007 - Present (7 years)

Software Company

I am not limited in various kinds of mobile apps and recent tools & libraries.<br /><br />Below you can see the parts which I have good experiences in.<br /><br />- Xcode/ ObjectiveC, iOS SDK, iOS5, iOS6, iPhone4 & iPhone5, iPad3 & iPad Mini.<br /><br />- Android Native SDK, PhoneGap, Sencha Touch, Corona SDK.<br /><br />- Webservice Backend API development using PHP, JSON and/or XML.<br /><br />- Great UI/UX design and customization.<br /><br />- Social Networking Mobile App & Web Backend development, Social Media Integration such as Twitter, Facebook,

Education

Bachelor of arts

Beijing University of Technology

2007-2011

Certifications

doctor degree

Beijing University of Technology

I have doctor degreee in information fields.<br />My major artificial intelligence including pattern recognition and signal processing.

Publications

About feature extraction way in pattern recognition

Yan Bian

This book is about feature extraction in pattern recognition.<br />This book consist of three chapter.<br />first : history in pattern recognition.<br />second : feature extraction method<br />third: application