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Xin Jin

High-Skilled iDeveloper & Social Photo Sharing App Expert

Username: xinjin8878

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Location: DanDong, China

Member since: August 2013

Reputation:

5.0/5

(39 reviews)

6.9
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14 users have recommended this freelancer.

My skills:

My projects:

  • $2500.00 USD
    5.0
    Profile image for Seller christopheryang

    christopheryang

    17 days ago

    very skilled developer. highly recommended!

    Project Description:please design a photo app for ostanding. requirements: iphone5 and most other phones use a ~8M pixel camera. the resolution is too low to produce the file needed for custom shade printing. we would...
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  • $216.00 USD
    5.0
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    benpaxton

    19 days ago

    good coder....

    Project Description:Need help fixing a Slide Navigation UIViewController with custom UITabbar. Add pan gesture to Controller and animate button in center of tab bar. Starter code provided. Needs to work for both IOS 6 and 7...
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  • $360.00 USD
    5.0
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    rsiglobal

    Jun 9, 2014

    Very skilled coder and works very fast. A pleasure to work with and work product was top quality. Highly recommended.

    Project Description:I am looking to build the iOS version of this intro screen app as Universal so support both iPhone (portrait only) and iPad (landscape only). The screen will display a background image, some text at top, 2 buttons, and when user swipes it will transition to another graphic...
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  • $515.00 USD
    5.0
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    jtoelle

    May 19, 2014

    The project was completed on time and with great care. We'll use Xin again for future projects.

    Project Description:We need to make some small changes, add 2 new features and fix some issues to an existing app. You'll need to know Php, Json, Objective C and some Various SDK's. Bids should NOT exceed $500 or 7...
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  • $400.00 USD
    5.0
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    boiboi

    May 18, 2014

    Look no further. Xin is a hard working, highly skillful programmer. He is the best in what he does.

    Project Description:part two of iphone project
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  • $3000.00 USD
    5.0
    Profile image for Seller blakegentry

    blakegentry

    May 11, 2014

    Xin is one of the best developers on this site. Very easy to work with and great attention to detail. We tried open bidding but it was so much easier to hire Xin directly. Not only is the code clean and well structured, he has the ability to perfectly translate a PSD design into the app (as designers this was a huge bonus). Highly recommended developer! One of the best. We're going to come back for all our projects.

    Project Description:We are looking to hire an experienced iPhone developer and your portfolio and skills matched perfectly. We have a complete design and it's also important the developer be able to perfectly reproduce that design...
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  • $1000.00 USD
    5.0
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    onur1987

    May 8, 2014

    You did a great Job Xın...I m sure we wıll work again...You are fast and professional..This project had delayed because of me...But results has satisfied me a lot.See you at the future project.

    Project Description:come on!. :) blasldasdıasbd asoddı abısudb asıdb aısbdıasbdıasb asbdb aısdbasd baısdubaısb asodaonasudn.
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  • $1080.00 USD
    5.0
    Profile image for Seller jtoelle

    jtoelle

    Mar 20, 2014

    Thank you again Xin, another great project completed.

    Project Description:Private project for Xin - Project 5
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  • $1030.00 USD
    5.0
    Profile image for Seller jtoelle

    jtoelle

    Mar 12, 2014

    Another successful project with Xin... hope to have hundreds more.

    Project Description:Private project #4 for Xin - Objective C
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  • $103.00 USD
    5.0
    Profile image for Seller jtoelle

    jtoelle

    Mar 5, 2014

    Another quick project completed by Xin, if you need someone who knows how to code.. he's your guy.

    Project Description:Private project for Xin App update and configuration
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    Xin Jin has not completed any projects.
  • [Sealed] In Progress

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  • $1546 USD In Progress

    Hi!I am looking for a developer for a quiz app (like QuizUp). There should be 3 game modes: Training or solo, challenge someone and random opponent.Questions have the structure: text&sometimes photo + 4 possible answers. Users have to register (or login via Facebook) and the app should keep their records (user level, scores, experience points,...). Also app must calculate rankings (weekly, monthly, all time, based on every category of questions).Questions, answers, photos must be easy to insert. All the data should be on server.App will be free with adds, but players can upgrade to Premium version (add free), also there should be some in-app purchase (cards with which player can eliminate 2 answers, double xp and so on...).More detail will be provided to succesfull bidder.Please provide me design/programming you"ve done before, links to your previous apps on app store.

    [more]
  • [Sealed] In Progress

    Hello ,I need a really good company to developing the best VIDEO CALLING GROUPS app for IOS [ ALL Version including ios 8 + android ]The program will have alot of API that we will use it and we will make it so professional so if you gonna bid , but in your mind that there is nothing is impossible and I want this app really perfect app as what i want itThe details is private and I need to see from the bidders the best app that they did built it. And i"ll choose the best one.

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  • $2474 USD In Progress

    I am looking for a iPhone developer that will be willing to make a social networking app. The main point of this app is to post and comment on posts all anonymously From posting a status anonymously, to commenting anonymously. They will be able to make a account with an email set up a username and password and be able to have a picture and biography while viewing their profile. There will be four sections on the top of the iPhone the first is feed, second is Others, third is Activity, and the fourth is Profile. The feed is all the anonymous posts of people you follow and comments. The second thing is activity which is a brief list of things people of your friends list have commented on. The activity is where one can if an anonymous person commented on their post, and also if they are private to control who follows them. and Your profile is your picture, name, and biography it, also below it ONLY shows how many posts and things you commented on, it doesn"t show any posts. When you make an account you must be following at least 10 people to view post to make it as anonymous as possible. You can make yourself private to control who follows you as well. and also to make a script or something to make it so when one posts something to their followers after it will be deleted on the main database so it will not be linked to the person who posted it anywhere. The point is to make it as anonymous as possible. The last thing is to put a small ad at the bottom of the screen while in the feed or others section. This idea is copyrighted by myself so do not try to make this without me.

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  • $1443 USD In Progress

    We need an iPad application developed from the PDF example file.The applcation will include the following functionality...* User registration (name, surname, email, tel)* Database* Menu* Content for each section* Dynamic videos hosted on a website* Mutiple choice questions for each section* Ability to repeat the test in each section* Scoring for each section (ability compare scores)* Overall scoring for all sections (comparative scores)* Admin tool that allows updating of questionsLooking forward to your quote.

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  • $2474 USD In Progress

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  • $2474 USD In Progress

    We have an Android app on google play and we wish to implement it on an iphone. It is a basic english course with a syntactic analizer, speech recognition and text-to-speech in 45 steps, called Basic English Teacher Pro (https://play.google.com/store/apps/details?id=com.avntk.englishteacherpro&hl=en) We are interested in converting the first 10 steps as a teaser free app and later the full 45 steps.

    [more]
  • $24742 HKD Today

    We have a android application have been developed. and IOS project planning to start. any question please email to rizfong@gmail

  • [Sealed] Today

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

  • $1546 USD Today

    Create personalized software for a delivery service firm (Restaurants, Medicines, Supermarket and Licor Stores) and a mobile order entry application. Attached (after profile review) are flow charts of both projects for guidance. The firm software flowchart attached (Restaurant) should be used as a base for orders of other services. Mobile order entry application should work for iphone, android, and mobile site (Order Entry Time by Consumer < 1 min).

    [more]
  • $2061 USD Today

    Hello,I need simple QR Code Reader for Windows Phone, Android and IOS* It must read fast*If qr code value does not begin our website url, print to screen &quot;This is an invalid Code&quot;, if value begins with our url then directly go to our mobil website url. If possible, I do not want any alert during redirecting to the site. I think it is possbile using embedden browser or you can say which way.Thank you.

    [more]
  • $1030 USD Today

    ***ANY BIDS OVER $200 WILL BE IGNORED. ONLY NEED iPHONE APP***Hello,I have a simple 3 .PSD application I want to get developed. It&quot;s a currency converter.***IMPORTANT: SINCE THE PRICE OF CURRENCY IS ALWAYS CHANGING, YOU NEED TO FIND A FREE, UPDATED AUTOMATICALLY CONVERSION API***Here is what needs to be included:1. It needs to be in correct code x-code or whatever so I can upload it to the Apple store and it gets approved.2. Must work on iPhone 4/4S 5S/5c, so it needs to work on those IOS systems including 6.3. Must be easy to update to new systems if ever need to.4. I need the source files, ALL of them.5. Instructions on what files need to be uploaded to apple so people can download it.6. Need to install/help me find the best thing to add advertisements (full screen) to it.7. I will have a paid version with NO ads, need help with that to. (0.99)Here is what the app needs to do:1. Loading screen (will just show my logo I have, it&quot;s vector).2. Screen loads to the Convert Screen... User will click on &quot;select currency&quot; it needs to show the sign and the name of the currency (pounds, usd, and what not). They than need to click on the convert to (and same list shows up as the select currency list).. After they hit enter amount, they need to enter the amount.3. After they enter the amount they hit the convert button...4. They go to the next page; it shows the amount in bold, with the currency they selected.. below it, it will show what they put in such as &quot;100 Dollars changed to Pounds&quot; The first part shows the amount they entered and the current currency than the changed after changes to whatever they selected just the name not the sign.5. At the bottom they have a part to clear it, which takes them back to the convert page.6. That&quot;s it.The order of the app:1. Loading Screen (2-3 seconds)2. Convert Screen3. Results PageUpgrade to pro, that banner needs to be at the bottom, they can X it out but it will always appear on re-load. If they click it, it will take them to the .99 cent version which won&quot;t have the ads.* I want the ads to be full screen and show JUST BEFORE THE PRICE IS SHOWN. So, I know you read this, post today&quot;s date before your proposal or I will not consider your bid and you will just waste a bid.... this is my first app to get made so it needs to look exactly like I have on the psd, same fonts and all. Only image that will be on the site is my logo, everything else needs to be CSS.

    [more]
  • $1546 AUD Today

    Hi all,I am looking for applications developer.I would prefer if he/she lives locally (Adelaide - Australia).Please send through your resume, your portfolio and your fees.Regards,Sal

  • $1546 USD Today

    I need an app that can locate taxi nearby and one can send pick up request to the taxi.l

  • $5154 USD Today

    tinder like app with a twist on the geo location

  • $1546 USD Today

    Project Description: CHAT APP FOR ANDROID & IPHONEBRIEF DESCRIPTION:The core of this Chat Application is multiple Languages section for users to choose when download App. Users can send and receive messages using their native language or language of choice.(Google Translate API needed to translate Chat messages)Also with additional Features;- Social Sharing - Single Chat: One-on-One your friends and family.- Group Chat: Add and remove groups participants, change group names and add a profile photo to express the emotion and state of groups with your friends. - Video Calls: One-on-One your friends/family.- Group Video Calls: Make Video Calling in groups - File Transfer - User can send and receive videos, text file, music etc.. -Stickers-sharing.• Photo Broadcast: Quickly snap a photo to capture and share moment.• Emojis: Choose and send emoticons and emojis.• Message Search: click to find your friends’ messages, read through history and start a conversation again.• Share your location instantly in a message or group chat. Also check out push-to-talk recording & maybe walkie-talkie feature. ================SCOPE OF WORK:================1) UI Designing 2) Google Translation API Integration 3) User Profile with Log in/out function 4) User Log in Manually & through FB 5) Social Integration with FB/Twitter 6) Social Sharing 7) Single Chat 8) Group Chat 9) Video Calls (One-on-One)10) Group Video Calls (Make Video Calling in groups) 11) File Transfer - User can send and receive videos, text file, music etc.. 12) Using Google Translate API to translate Chat message into user language of choice. 13) User can invite friends and others 14) Server development including API&quot;s integration ============================DESIGN & ADMIN/BACKEND REQUIRED:============================PAYMENT SCHEDULE AS FOLLOW:=============================10% - Initial payment to start project15% - Upon completion of UI Design25% - Coding completed25% - Beta Test completed25% - Upload into Market & turn over Source Code

    [more]
  • $721 USD Today

    hiim looking for a freelancer to dev an ios app for a pestashop cms scripti want that the app containt notification when i post new product.app will containt, notification push.thanks

  • [Sealed] Today

    We have an iPhone app that worked great with iOS 6 and we have not updated it to work with iOS 7. So all we need is someone to review the source and find out what needs to be changed to work with iOS 7We are not iPhone people here do in order to complete project the app needs to be submitted to Apple and accepted into the app store before payment will be made.

    [more]
  • $25 USD/hr Today

    We are the early stages of building a simple inventory counting iOS app that can scan bar codes and interact with a Django based web application. We were looking at Django Tastypie and iOS Restkit but are open to other ideas. We would like to commission a simple proof of concept as described below:We will provide access to a basic Django set up that just implements basic user authentication using django-allauth. [login; logout; successfull login takes the user to a home page]. Can you extend it as follows (you can develop in your own dev environment and deploy here):1. Create an iOS app that can scan bar codes (the common types including 1D, QR and PDF417).2. In the Django web app, create a page called &quot;Mobile Devices&quot; where the Django user can add or delete iOS devices. To add a device, the website displays a QR code containing a secret key. When the mobile app is first launched on a mobile device (or if it failed authentication) it asks the mobile user to register the device by scanning the QR code displyed on the web app. As part of registration the web app stores a unique identifier of the iOS device or iOS app installation and the mobile app stores the secret key.After initial registration, the mobile app authenticates by sending the secret key; the web app checks the key against the unique identifier to authenticate the mobile app.3. If the mobile app has successfully authenticated itself, it shows two tabs. In the first tab, the mobile user can scan bar codes. If the bar code contains a predefined string, then an area of the screen flashes Green and the bar code is sent to the website where it is stored in a table with a timestamp and the Django user as a key. If the bar code does not contain the predefined string, then the screen flashes Red and the bar code is not sent to the website.4. The second tab of the iOS app shows a list of all bar code scans for that Django user, sorted by timestamp, that were uploaded within a certain time period.5. Create a page on the web app that displays all bar code scans sent from mobile devices linked to the Django user. Provide a filter to filter based on timestamp.6. Create a page on the web app for mobile app settings that applies to all mobile apps linked to the Django user. Create a setting for default scan interval (e.g. if 24 hours, the second tab of the mobile app would only display bar code scans in the last 24 hours).If you are interested please let us know:-When you are available to begin-How long do you estimate this project will take to complete-Fixed cost estimate-Interim milestones to completion of which payments will be linked

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  • $2061 USD Today

    I am looking for a mobile app for sports betting.This application should be available on Google Play for download.We want to be able to add several sports and several stake possibilities through an admin section.Android first and iOS to follow.

    [more]
  • $3092 USD Today

    ChatThis is an option where you can chat with your connections in the website.ProfileUsers should be able to see their friend’s profile.You should be able to submit pictures, videos, and eventsLocationUse your i phone to check in your location.Current EventsThis displays all the photos and videos that users are posting on the website, and you should be able to rate the photos, videos, and events on your i phoneConnectionsThis tab displays all of your connections. You should be able to find connections from this tap, and view your pending connection requests. You should also be able to accept or reject your connection requests.You should be able to search for connections.MessagesThis tab displays your connections. You should be able to reply to your messages from here.NotificationsThis tap tells you when you receive a message, your pictures has been rated, your photo has been rated, the college in your profile has been rated, your professor has been rated, your class has been rated, your receive a friend request.ProfileYou should be able to access your profile, update your profile, view photos, view videos, and find friends.This has to connect to the main website http://www.studentkafe.comMinor changes will need to be done during development, and we should follow the Agile Methodology for development using one week sprints, and code review. This content should not be shard with anybody, and the code is not your property and can not be sold to anybody else.

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  • $721 USD Today

    I would like an app very similar to the app &quot;Yo&quot; (https://itunes.apple.com/us/app/yo./id834335592?mt=8).However, my version will have a slight variation in the text.

  • $721 USD Yesterday

    To create a video downloader apps with browser, player, files/video management and playlist organiser features -Full source code must be provided and supported by XCode 5.1.1-No need to spend efforts to design icons/buttons as I will do it myself. More importantly is the whole apps working flow-Please refer attached doc for detailed requirements and spec of this apps

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  • £1546 GBP Yesterday

    Create a bespoke, data driven customer portal, which displays customer/stakeholder specific information, relating to projects, for an iPad.For internal use, also needs to display task level info for consultants in the field, who can tick a task once complete, and update both the project manager and client app.

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  • $721 USD Yesterday

    I would like someone to program an App for my restaurant. The App has the food menu, and it allow the buyer to order online and to send his location with a confirmation number. It also allow the customer to pay online.Please if you have the skills contact me.

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  • $721 USD Yesterday

    This is a social mapping app. The app presents users with their contact list which they can search through with a search bar. The list will draw contacts form the phone’s contact list and the app’s own private contact list. User1 selects contacts that he/she is interested in connecting with. When User1 hits CONNECT, the selected contacts get a notification (if they have the application) that says that User1 would like to connect with them. If receiving useres do not have the application, then they are sent an SMS that links them to the either the Apple app store or Google play store (depending on the platform receiving user is on) to download the app. If receiving users accept the invitation, the two users broadcast their locations to each other for a temporary amount of time. In the app, the users can see a localized map with the locations of the people they have connected with being shown in real-time. Selecting users on the map by clicking the icons representing the user will allow users to SMS.

    [more]
  • $1546 USD Yesterday

    The Project- To create a simple, easy to use app for both Android and iOS. - 10-14 days max for completion (does not include approval obviously)- The app is very simple, and will need to look, behave and work the same on both platforms.- Submission to app stores and source code requiredDevelopment and Functionality - see App Brief for more detail in attachmentsDesign- All design work will be handled by our graphic designers so this will not be necessary on your end.- The app needs to look the same, or close to, so your team will need to give us the easiest option in terms of how to handle multiple screen sizes on android, whether that be floating elements or stretching content/screens. - More detailed designs will be given after project is rewardedTimeline- Fully completed, all development for both platforms needs to be finished on or before July 31st 2014, midnight AEST, with all project delivered to our team.Servicing and Maintenance - The app needs to be free from bugs, crashing and other unexpected variations or deviations from what the project specifies.- If the app is found to have issues we expect your team to correct them immediately, and within the costing without extra charge.- We will not seek extra work for free, we are fair. So if there are any new features we would like the app to do we can arrange a fee on top of the old feeAny questions please ask

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    Xin Jin does not have any open projects.
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Portfolio

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Résumé

Experience

Social Photo Sharing App

Sep 2010 - Present (3 years)

Individual

I have good experiences in Photo Sharing Social Networking App Developments.<br />I have developed several Social Networking Apps similar Instagram and Papa, Path, etc.<br /><br />1) Features<br /> - Wonderful Graphic Design<br /> - Photo/Video Filtering <br /> - Unlimited uploads<br /> - Push Notification<br /> - GPS Location<br /> - Instant sharing to Facebook, Twitter, and Posterous<br /> - Rate Profile<br /> - Sort People by distance<br /> - Google Map Feature Integrated<br /><br />2) Platforms<br /> -

Education

Degreee

Tsinghua University

2005-2007

Certifications

Apple Certified Technical Coordinator [[ACTC12621038]]

Apple

2011 ACTC certification builds on ACSP, and verifies a foundation in Mac OS X and Mac OS X Server core functionality and an ability to configure key services and perform basic troubleshooting on Mac OS X and Mac OS X Server. ACTC certification is intended for Mac OS X technical coordinators and entry-level system administrators who maintain small-to-medium networks of computers using Mac OS X Server. This certification addresses both the support of Mac OS X clients and the core functionality and use of Mac OS X Server.

Publications

Mobile Development

Xin Jin

iPhone/iPad/iOS App Development.