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The strongest survives.

iOS+Android Genius Since 2011

Username: jinlongwei

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Location: Beijing, China

Member since: August 2011



(34 reviews)

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5 users have recommended this freelancer.

My skills:

  • $200.00 USD
    Profile image for Seller stephanoitz


    10 days ago

    user was very patient.Good experience Would definitely will work again with him

    Project Description:hello, i have an existing xcode project the is using 1 sprite file. i want this app to use multiple sprite files instead of 1. each animation should have 1 sprite file. there are about 10 animation...
  • $1526.00 USD
    Profile image for Seller flash1821


    Jun 13, 2014

    Another great job. Very skilled Freelancer.

    Project Description:Updates to my current iPhone and Android app
  • $157.00 USD
    Profile image for Seller stephanoitz


    Jun 9, 2014

    Great freelancer.Will definitely work again with him.A Real professional

    Project Description:hi, i have an existing xcode project wich i want to have modified. - integrate advertisements (revmob,chartboost,apploving, playhaven, admob} - integrate inapp purchase (to remove ads) all the...
  • $2000.00 AUD
    Profile image for Seller erikgyzen


    Jun 6, 2014

    Great Job. High Quality and delivered on time.

    Project Description:Hi. Sorry for lenthgy delay getting back to you, but its been quite difficult getting all the content sorted for next generation App. I have put things onto test website to give you a feel of what the next generation may look like...
  • $3157.00 USD
    Profile image for Seller maxawei


    May 23, 2014

    Professional and Very hard working. Will work with again!

    Project Description:Build an iPhone app which can communicate text, images and in app phone call. Serious bidders only please!
  • $6366.00 USD
    Profile image for Seller flash1821


    May 11, 2014

    Great programmer. Will hire again. Thanks!

    Project Description:[This is a Private Project. You must be logged in to view the Project Description]
  • $1100.00 USD
    Profile image for Seller pontissimo


    Apr 23, 2014

    The most unprofessional worker on freelancer. Ignored half our changes, delivered an ugly crashing app, and had the nerve to ask for more money. Keep looking, there are much better workers here.

    Project Description:I have an existing iPad app that shares pictures via Facebook and email, and I need to make a new version that shares videos instead of photos. You can download the current version from the App Store, its called BoofShare...
  • $684.00 USD
    Profile image for Seller motorcycleusa


    Apr 9, 2014

    Good programmer. Would use again.

    Project Description:I need to develop and customise an IOS sip voip dialer . Siphon open source can be found here : . if you are familiar with this software, please let me know . Please only bid if you have used Siphon ...
  • $126.00 USD
    Profile image for Seller ransika


    Apr 7, 2014

    The coder is extremely committed and tried out many ways to get the work completed.

    Project Description:We need a android fragment which is done exactly as per the design. It should work work from Android 2.2 and above. The user takes the photo then when the next (>>) is clicked, the user sees what the photo taken is and then can draw on it...
  • €33.00 EUR
    Profile image for Seller Raizen21


    Mar 23, 2014

    quick and fast! Still looking forward to work with him

    Project Description:Hello All, I need a start screen for my app with an animation of a logo(color-fill animation) and a fade-in effect when the animation ends. Please look at the attachment for the desired animation(the logo needs to start blank and get filled with the blue color...
    The strongest survives. has not completed any projects.
  • $700 USD In Progress

    Hello, I need an iphone native iOS phone application developed, It is relatively simple as most of the information comes from a web based API JSON Webservice that has already been completed and there are only 4 screens. In addition, the screens have already been designed as shown and are available in 640 X 1136 photoshop, layered format, but we do need images to be resized for all common iphone screen sizes like iphone 4s and Iphone 5. Please provide examples of other apps you have developed.I have attached a detailed pdf with all functionality.

  • $1578 USD In Progress

    Hi,I’m looking who can create very simple camera app for Android & iOS platforms.Details:- The app must have a timer function- The app must have social share integration which simply allows to share taken photos to social networks- Other function is to play chosen sound (by user choice) few seconds / moments before shoot.- Another simple function is “tap to shoot” (Candy Camera you can find example) , you can take a picture by simply touching the screen.- Ability to switch cameras (front camera / back camera)- Push notificationsRequirements:- Most important thing is design & UX (we are in digital and mobile business for a while so we definitely know what is beautiful, tasteful and made for best user experience). Samples could be provided.- ASO & SEO optimised app.- It must be prepared and fit strong App Store approval- English language- It must work offline- Must be flexible for future in app purchasesSimply - user open an app, chose one from two categories, than one sound from three and thats it. So, talented experts, its perfect deal to show your skills! Thank you.

  • $1578 USD In Progress

    ONLY CONTACT ME IF YOU CAN WORK WITHIN THAT BUDGET. ---- 1500USDAPPLY TO START NOW AND FINISH IN 5-14DAYS (or tell me your estimate) PLEASE MIND BID RANGE I HAVE PLACED, YOU CAN BID AS HIGH AS YOU WANT HOWEVER LOWER BIDS HAVE A BETTER CHANCECOMMUNICATION ON PROJECT PROGRESS IS IMPORTANT.Create an android chat application similar to a well known chat messaging app WeChat or MomoFEATURES** FacebookSignup Phone number (User verify phone number)** Unique Matric Number as Username*** MAJOR FEATURE: Chat** Friends and Invite Friends** Settings PagePush Notifications** Use of Parse for Server Side is important. If you can use other server service , let me know1. send and receive message2. send picture3. momo ui4. user Set a profile photo which will be shown to all your contacts5. once your friend have the app, you can send and receive free message6.Register with username/phone number/facebook9. add user by phone number or UserID10. dating function (Swipe right to like or left to pass. If someone likes you back, it’s a match! Chat with a match). 11. No emoji12. No video sharing13. No status update14. No group chatDon"t apply if you are fresher or beginner, you need to provide me portfolio for android and iphone application. I need all feature above. apply with your portfolio and share your knowledge so that i will have confidence about your skills.

  • $5000 USD In Progress

    develop a whatsapp like client app for both ios and android.Exclude server side development.interface to server shall only be http/ Json or web service.

  • $736 USD Today

    Hi,We are looking for someone to build an iPhone app that works with our API.See API here (use Affiliate API only): icon wants to use our logo and show them how much they have earned quickly for the date spans: Today, Yesterday, This Week, Last Week, This Month and Last Month. And also be able to enter a custom date period. This is the "Stats screen"There also wants to be a setting they can switch on which shows them a notification, when they earn more commission and it says how much commission they have earned.User logs in using their API key.The app also wants to have another screen. Which is the "Payments" screen/tab which shows all the invoices and Receipts the user has had generated the date and amount.I don"t think this project will be to hard, full source files must be provided for the app and a build ready to submit to the Apple App Store (we already have a developer account).The app should match our website branding/colors (can provide a link on request).Thanks.

  • $54 USD Today

    Hi,I need some assistance with an app that is already being developed. I just need to someone to be able to add push notification between user to user. I already have it where I can send push notifications from the server end but not between user to user.Thanks

  • $526 USD Today

    I have a music app that I personally developed for Windows 7 / 8 and is now deployed. My next goal is to develop an iOS / iPad app for this software. So I am very clear as to what is required and a demo Windows version is available for reference. The iOS development was started so a code framework and many of the work is done. However, it is not complete. So I require a competent iOS developer to take over the work done and see it through completion (i.e., coding, testing and finally deploying on App store). Please only bid if you are experienced iOS developer!

  • €210 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.

  • $789 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.

  • $684 USD Today

    This is a current application already in the App store. You can find the latest app at I have attached the list of requested updates to the application, so please download the document and review closely before bidding. Please also download the app first and review before bidding. The update requests will make more sense once you have looked at the current app. If you have questions please message me. I will provide the latest code to the winning bidder. For every milestone completed and paid for, I expect a complied version of the app and the code. If you do not agree to the terms please do not bid.Thanks and good luck!

  • $210 USD Today

    Hi I have 2 apps in the app store that currently have the iAd network. I want to integrate Mopub into the apps instead.

  • $2631 USD Today

    I have not done anything for this project yet. I just have a great idea that i want on the market. This was a math game brought to my attention by an ex military soldier. This game is very fun and addicting. Basically you get 5 random numbers, whether its from a deck of cards or just 5 random numbers. You get to use: addition, subtraction, division, multiplication, square root, and the number squared. Using one, all, or a mix of this (addition, subtraction, division, multiplication, square root, or the number squared) you have to end up with 50. all 5 numbers have to be used and only can be used once. the numbers and can be used in an order. i have test it and there is always a way to get 50. try it yourself. its a great, simple, addicting math game.

  • $16 USD Today

    Need install a FreePBX on my DigitalOcean Server

  • $210 USD Today

    I need some fixes to my app to finalize it please contact me asap.

  • $19 CAD/hr Today

    we are looking for an asterisk expert to build and manage an entire voip system, home phone, pbx for our company, updating rates.

  • $1421 USD Today

    An app for Apple iPhones will pay well for quality work

  • $15 USD/hr Today

    Looking for a app to develop iOS. Take a picture and correct the nose position.

  • $2947 USD Today

    Hello I would like to Make a App similar to "Yelp" ( that caters to Finding good FOOD TRUCKS in a local area. I want Owners to be able to create a Profile, upload menu pictures, and use their GPS to get live location status. I would like consumers to be able to Rate and give reviews about food trucks as well!

  • $1052 USD Today

    Looking for an mobile app designer with experience creating apple apps to assist in creating an interactive alert app. Must be willing to sign a disclosure agreement before starting project.

  • $1052 USD Today

    I would like to create an app that would allow multiple companies in a specific area to post a message which would appear in a news feed that would stay up for a specific amount of time. Separate individual users would be able to open the app and see the news feed.

  • $736 USD Yesterday

    i need to see demo of app before i send money . to see if you understand my app idea or not . user after lunch app in first time i don"t want user need to login or connect to twitter account.i want user after launch app in first (use) app and write tweet and edit tweet after he write tweet and choose colors background font then if he want to tweet in next step he need to connect to twitter .i don"t want to force user to connect to twitter in first step.i want user test and see whats this app and how work .i don"t want ( connecct - login ) to twitter in first page. app will be free and with more features he need to give 0.99$ to - upgrade - or unlock - this features .tweet text size will resize automaticlly . depends on how many words .free feature : is tweet with more 140 characters with black color font with white background . user twitter account will showing in under left side of tweet photo ( look at photo ).user twitter account name will be write by user or automatically .app name watermark will be showing under right side of tweet photo( look at photo ). note : after user upgrade 0.99$ app name will removed from tweet photo.upgrade features : choose text fonts - choose text colors - choose backgrounds colors .i want app with more good fonts ( fonts easy to read not hard ) i want fonts support more languages .Tools : i want easy tools to ready and understand by user ( tools - with icon and name ) like : fonts - background - text colors .user accounts : user can be add more than one twitter account . tweet will be a .jpg photo exactly like this : tweet words then .jpg design : i prefer one of this app UI design ( i will buy it after you choose one ) 1- which design will be better for the app idea .i need to see demo of app before i send money . to see if you understand my app idea or not . work time : 7-14 days after this days request will expired . note : i will not accept low quality work . i will not accept app with bugs or crashes .app explain photos : you for your time .Extra notes: i need to see demo of app before i send money .

  • $147 USD Yesterday

    I would like for you to edit a source code for me. Just some adjustments.

  • $200 USD Yesterday

    I"m looking for someone who can solve a bug my app is having. Basically, the problem is I have an app which development began 6-7months ago, that crashes only on iPhone 5S. I can not detect errors in code, and I think the problem is due to the fact that the iPhone 5S is 64 bits. Until very recently this was not happening, however, after making some changes in the interface, the conflict began. Most crashes are detected in the side menu of the app. I"ve tried different libraries and remaking of the requests to the server, but is not working. Is this familiar to anyone? The freelancer who wins the contest has to assure me that this gets solved.So that I can select the winner, each contestant must send me a short description of what will be their solution to solve this problem.

  • €473 EUR Yesterday

    I need a simple application for iPad. This is the prototype and I have done a powerpoint presentation to describe it. Application will be beneficiary to people and simplify their lives. Application itself will have three tabs on the bottom of the page, to change the views. It needs some user input for text and numbers. Application has to synchronise with users Dropbox or iCloud for some data sharing.

  • $5263 USD Yesterday

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

    The strongest survives. does not have any open projects.
    The strongest survives. does not have any work in progress.
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Architecture designer

Apr 2009 - Present (5 years)

China Network Research Center



Shanghai Jiao Tong University



Python Certificate



A way to reduce Squid's user latency

Steven, JinLongWei

This publication is related to squid's performance improvement.