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Xamarin & Mobile & Web Developer & 3D, 2D Perfect Design

Username: zhengnami13

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Location: Shenyang, China

Member since: April 2013



(98 reviews)

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8 users have recommended this freelancer.

My skills:

My projects:

  • €450.00 EUR
    Profile image for Seller Raizen21


    15 days ago

    great working with. Listening carefully to requirements . I would rehire again.

    Project Description:Hello, We have developed a complete and functional web service in WCF(.Net) and have a developed a working android app with it. We now want to have a similar version for iOS . In this first phase, the...
  • $2680.00 USD
    Profile image for Seller dsweany


    15 days ago

    Zheng is an excellent developer with incredible knowledge. I would definitely recommend him and would hire again without question.

    Project Description:Write an application that uses the built in iPhone accelerometer technology. Very similar to the iPing and PerfectPutt applications with some unique differences. Golfer would be required to purchase an iPing cradle that holds the iPhone and attaches to the putter...
  • $2880.00 CAD
    Profile image for Seller o0JoeCool0o


    Jun 12, 2014

    Fantastic work. Was able to get around complex issues, definitely will rehire.

    Project Description:I need an Android version of the PSPDFKit framework, with hand written annotations that look the same quality and smoothness as the pspsdfkit one. We have a project we made in ios in pspdfkit that needs...
  • $1052.00 AUD
    Profile image for Seller tomii955


    Jun 9, 2014

    The app has been completed.

    Project Description:Concrete calculator The Concrete Calculator can be used to estimate the volume of the concrete you will need for the size, or area, of the land that needs to be covered. The size of the area can be specified using rulers or using the drawing tool...
  • $504.00 USD
    Profile image for Seller aliemami


    Jun 7, 2014

    awesome experience<br/>few times i have worked with him, he is very pleasant to work with and excellent programmer <br/>he is one of the best programmers i ever have worked with. I would hire him again. <br/>great programmer, awesome to work with and a great communicator. I will continue work with him for rest of my project

    Project Description:to finish an iphone music application, the work is almost 90% complete the candidate should have following expertise: - be expert in creating application using xib files - be expert in pre ARC applications...
  • $1286.20 USD
    Profile image for Seller hkbilly828


    May 23, 2014

    Good, On Time, Nice. Very nice

    Project Description:Write an iPhone application for socket + stock quote I have a server have provide json data (web socket []) you need to create a iphone application (using tab controller and tableview to store...
  • $150.00 USD
    Profile image for Seller bmrlau


    May 16, 2014

    Zheng is a Smart Developer, and is always there for support in case of any problems, and perfect communication through the whole project.

    Project Description:Correct a bug fix in who viewed my profile.
  • $650.00 USD
    Profile image for Seller rzckh123


    May 5, 2014

    Awesome work<br/>

    Project Description:Additional functionality.
  • $945.00 USD
    Profile image for Seller magnusandersen


    Apr 30, 2014

    Yeah hes good :)

    Project Description:I need an app where users can store credit card number, expire date and cvc code. The program should need a security code to start, selected by the users upon first start of the app. Then add-edit-delete for every card...
  • $4937.00 USD
    Profile image for Seller rzckh123


    Apr 22, 2014

    Good developer, work hard finish tasks fast.<br/>Good work!<br/>Good!<br/>quick and fast, definitely will hire again.<br/>Good work, on budget and on time<br/>Good job<br/>great work, nice and fast<br/>Good, solve problem very quick!<br/>Good work, solve problem quick and clear, explain code nicely. Definitely will hire again in the future.

    Project Description:We need a skilled iOS developer cooperate with us as a consultant with follow skills:\r\n1. Familiar with coreLocation/GPS service, coreData(might or might not need, depend on how we handle localized data), data validation and other basic iOS SDK function.\r\n2...
    Zhengnami has not completed any projects.
  • $31 USD/hr In Progress

    Hellowe are developing new mobile apps based on Wordpress.we need professional freelancers that familiar with BOTH WordPress and PhoneGap.if you have 3+ years you can bid !thank you.

  • $4842 AUD In Progress

    - Endorsement System- Fix Bug List

  • [Sealed] In Progress

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

  • $36 USD/hr In Progress

    Experienced programmer wanted for Xamarin project.Applications from programmers with proven experience ONLY.We need a prototype mobile application build in Xamarin for Android.The purpose is a general application for field service / delivery, including:- local database for offline functionality- Multi treated, background communication with webservice, when having Network connection, logging GPS-position every 10 secs (configurable)- Login - call to webservice- Load route from webservice (a route is a set of stops; adresses to visit and to perform a task; fx delivery or field service)- Display a list of stops for the loaded route- Select a stop on the list, show a page with details for the stop eg. name, address, phone number- Show stop on a map and enable navigation to the address- Signature capture for proof of delivery. Save the signature in the database.- Report the stop as done, register the actual date/time and GPS-position in the local database- In the background send the information to webservice whenever possibleThe prototype should be documented and we should be able to continue the work ourselves.

  • €1443 EUR In Progress

    Our company is looking for an Android App developers. The application already exists on iOS device, now it must be developed on android mobile and tablet. The app present on mobile phone is dedicated to customers, that on tablet is dedicated to the merchants.The mobile app allows the customers to purchase product directly from the app and receive coupon and special offers from the merchants.The two apps will communicate with a backend server through restful php web services already implemented.Those web services will let apps fetching data in the XML format.We have attached a wireframe in order to let you understand the app main functionalities.Once the project is taken in charge a specification document will be provided with all the details about communication web services.The project is very urgent and it should be developed in one week once the technical requirements will be provided with. We will deliver the requirement on Friday 10th January and the project must be completed on Friday 17th January.

  • $35 USD/hr In Progress

    I know you get this request all the time and I am in now way trying to low ball this project. I studied math and many of my peer in university studied computer science and I first hand know this is a huge project. But I also know the average going rates for software development so lets play fair ball pure business/service. I need to develop a website with a monthly registration fee as well as a very small transaction fee. As you may know Vaporizers and associated items are becoming a large consumer interest. I am the founder of Vaporize-IT Distribution Corp. I have created a web or net between local (socal) wholesalers and local (socal) retailers. BUt this is growing to large for me to manage on my own. My niche is that &quot;on hand inventory&quot; is deliverable within 6 hrs and my &quot;on call inventory&quot; is available in 24 hours. We mark up the item on average (emphasis) average 35%. My on hand inventory is once the order is received is delivered by a driver within 6 hrs and my on call is delivered by a drivr within 24hrs. BUT! I want to give a retailer the option of being a wholesaler as well for certain items. If they must order some they might as well order a lot and wholesale a portion to another retailer. THey can choose to send it themselves, or have a driver of mine pick it up and deliver the item for an added cost than can be divided by both parties evenly. THe seller should be able to choose his payment option be it Cash on Delivery or Cash on Order. It is imperative that this site is exclsively for retailers (who identity should be masked with only location of store available to view to prevent retailers fueling neighboring competing stores. This exclusivity can be maintained by invite only memebership. Im willing to put up funds to have this done well for I feel it has a huge growth potential.

  • $1546 USD In Progress

    Hi, i need a good developer to improve completly a componant community poll in my website joomla, if you do a good and speed job tell me. For all task tell me in skype [ USERNAME = nojmoi ].

  • $180 USD In Progress

    I have a client that uses Smugmug to display photos from his events. He&quot;s looking to have his Smugmug account perfectly match his header/nav and footer with his website. Smugmug:

  • $824 USD In Progress

    Looking for professional to do the Mobile Optimizayion of our B2B platform http://www.italianbrandsdistribution.comWe are also looking for someone to do the Mobile App for our offer system for members to register, login and send to their friends, sharing, etc.Our offer system page:

  • $4842 USD Today

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

  • [Sealed] Today

    We have an existing iOS application that needs to be ported to Android urgently, full access to the iOS code is available.\r\n\r\nYou can find the iOS app on the app store:\r\n\r\n\r\nThe app communicates with an API - the server developer is available to answer questions and guide through the API.\r\n\r\nThe app itself pulls 90% of its image assets via the API.\r\n\r\nWe have an extremely tight deadline and need to have the app fully functioning within 10days.

  • $8947 AUD Today

    Hello, I am looking for a team to create my version of texas holder pokerThe app will be extremely similar to this app will have customisable avatars, as well as a shop to purchase accessories and addons for their character. this game will be a mixture of the app above and PKR poker apply if you are in a team, you have experience and good reviews.

  • $789 USD Today

    This is a really basic app to create, basically it will use all of the Vine&quot;s previous functions and operate exactly how Vine does. Essential it will be vine with one added in feature. If you have any questions please feel free to ask. I am looking for experienced people to make the app as crisp and smooth as possible. The added on feature will take a little skill but is not hard at all :)

  • £263 GBP Today

    A football app with live transfers and a blog

  • $789 CAD Today

    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.

  • $750 USD Today

    We are looking for a android developer who can work for us full time for our mobile messaging app with features like picture, file, location, doodle between users and within groups. There are more additional features. Successful individual will be entitled for employee stock ownership plan (ESOP)There are other benefits attach to this opening. The individual we are looking for should be go getter with advance understanding of android.

  • $789 AUD Today

    I need an android app, which can send and receive FSK data through audio jack. It needs to have the following features:1- Android app should be able to send and receive FSK data through audio jack,,,there should be to text box ,,one for writhing send data and one to show receive data.2- There should be three buttons,,,1 for recording,,1 for stop recording and one for play3- There should be the possibility for start and stop recording through FSK. For example when the application receive #hi> it shoud start recording (disable recording button and enable stop) and when it recive #by> it should stop recording and save it in the storage (enable recording button and play button).4- When I press play button it should start play the recording5- I may want to add other command to it, that would be good to have optionto add other comment for other application

  • €26 EUR/hr Today

    We need to develop a social networking app for IOS, Android and Windows. In the first phase for IOS. The application that will be similar to Tinder in terms of features but not for dating purposes, but for connecting similar minded people with similar intrests and activities.Features:- Ability to signup/login- via FB or email. Get a list of users- View their profiles-Ability to chat with them, similar to Whatsapp - In-App purchase-.As the first step we need someone to create the IOS application.We would like the work, in this first phase to be done fast, so that we can make a testlaunch and then improve and develop the app for Android and Windows.When interested I will be happy to provide with further information.

  • $526 USD Today

    An app Who connect to The company server and download new update and save it....

  • $7894 USD Today

    We’re seeking proposals for an Android app to list and search “information” (iPhone app already exists). The contractor should have EXTENSIVE experience and an ELABORATE portfolio to back their competence. App to be developed is in the category of AutoTrader, Kijiji etc… ; search, list, save, post, manage posts, manage documents, signin/signout. Certain functions require geo-positioning. Proposed work flow is as follow:1.If interested, submit references of experience and portfolio2.If selected for second round of review, we will provide you with a.iPhone app link b.Detailed documentation on the various functions of the app c.Documentation of the API (REST)3.You will need to provide us with a.Estimated time to complete with your functional milestones b.Propose hybrid or native c.Cost d.Setup of mutually accessible source control4.Milestone payments will be released upon functional release of sub-functions of the app AS WELL as associated source code5.Final 10% to be released after 1 month of app release to the public or until most of the bugs have been fixed

  • €250 EUR Today

    Write an Android application for a website

  • $1578 USD Today

    Looking for experienced designers and developers for ios and android apps. With Payment and Booking integration. Please email me a list of your previous work, must be able to provide references.

  • $26 USD/hr Today

    I am looking for a team of testers for my mobile app. You must be able to provide a team of 10-50 people that can test my mobile app on demand. Each tester must have access to an Iphone, Ipod touch or Android device. They must also have access to a computer on a network with wifi access. The testing will run from 9am EST to 2pm EST. The testing lasts about 15 minutes each hour, and they repeat every hour, so I will not need them for the full hour. I am looking to pay about $1-$2 per person for each 15 minute block of their time.

  • £1578 GBP Today

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

  • $3157 USD Today

    We are a young start up based in London, United Kingdom. We are looking for a team of developers to build our project. We want to make an application on IOS and Android as well as a website. This project will be about betting on sports between users. This project will be a long-term project as we aim to make future version and a constant control on the project by the same team.

  • $2947 USD Today

    I have attached several documents outlining this project to build an SMS archival tool and email gateway.Please read them before bidding. Please provide an accurate bid, should you have questions please ask them before bidding. I would prefer a PM which I will respond too them in bulk and allow ample time before awarding the project.I would prefer that you not place incomplete bids, example being changing the price on your bid.

  • $2105 USD Yesterday

    Our two iPad applications were developed by a freelancer who I can no longer get in contact with. The freelancer provisioned the applications to our iPads using TestFlight. We now have an Apple Enterprise account and need the apps provisioned so that they can be installed on any device using the features of the enterprise account.In addition, the applications have a few bugs that need to be worked out. Both apps use a web view to host a UI off of our server. The apps detect when certain pages are loaded and then allow an interface with the iPad camera. One app allows photos to be taken and posts a photo to the server via the web. The other app reads a bar code and goes to the website encoded in the barcode. Both apps work, but have minor bugs that need to be addressed which I can give details on later.Please do not apply unless you are a highly experienced IOS developer. I need someone who knows what they are doing and have no patience for developers who cannot clearly communicate and quickly understand what needs to be done.

  • €3157 EUR Yesterday

    Development a xamarin app for both ios and android

  • €2947 EUR Yesterday

    Develop apx. 50% on an uncompleated planning app

    Zhengnami does not have any open projects.
    Zhengnami does not have any work in progress.
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Mobile Software Development

Jan 2010 - Dec 2011 (1 year)

Shanghai Guangming Software Development Co., Ltd.

I developed many mobile business apps.


Software engineer

Shanghai University of Engineering Science


Software engineer

Shanghai University of Engineering Science



Electronic Engineer

Shanghai TV University


Network technology