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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


    21 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


    22 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.
  • $1295.00 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.
  • $4842 USD In Progress

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  • $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:

  • $210 USD Today

    A simple app That logs into a website with user and password and pinpoint its location

  • $6842 CAD Today

    App able to create own social network of followers with ability to connect API&quot;s from Facebook, twitter, etc.Customized linking to existing image recognition API&quot;s

  • $26 USD/hr Today

    I looking to develop an Android restaurant delivery app. It must be dynamic and pull data from preferably a Wordpress data base. I have the PSD. Template.

  • $26 USD/hr Today

    Hello, I need to produce (Photoshop made) app presentation images, that demonstrate the apps functions in actuality.I have already had some images made by another app presentation image designer (Image 1).However, there are 3 produced app function presentation images from the bunch that I&quot;m not happy with (Image 2, Image 3, Image 4).I want these images to look more professional. They need to look like they are showing an &quot;augmented reality&quot; ( image (if someone has prior knowledge of working with Photoshop to produce &quot;augmented reality&quot; type images before, that will be a bonus). They need to produce arrows and icons (+ a navigation map, at the top left-hand corner) in a similar fashion as shown in my app product concept images, &quot;Image 5&quot;, &quot;Image 6&quot; (in these images, the arrows are the same color, and need to appear as if actually are against the floor [NOTE: the text in the left pointing arrow says &quot;Science section&quot;, the text in the right pointing arrow says &quot;History section&quot; and the text in the forward pointing arrow says &quot;Reading areas&quot;. The text in the arrow of &quot;Image 6&quot; says &quot;Napoleonic Wars&quot;. The map can be made in enough detail as to seem as something you would see in an actual app) and &quot;Image 7&quot; (the arrow needs to look like an &quot;augmented reality&quot; looking floating arrow, the book needs to look slightly highlighted in red, the information box needs to look like it&quot;s popping out of the book in similar way as shown in &quot;Image 7&quot; [you can choose how the information is layout, so long as it looks like you would see in an &quot;augmented reality&quot; image, and it looks professional so nothing too flashy]).Needs to have a presentation similar to &quot;Image 1&quot;, &quot;Image 2&quot;, &quot;Image 3&quot; ect., but better looking.If accept your offer, I&quot;ll send over the .psd file images of &quot;Image 2&quot;, &quot;Image 3&quot;, &quot;Image 4&quot; (as the previous designer left them) and you can get to work on them with Photoshop.

  • $736 USD Today

    I need an augmented reality mobile application developedWe would like this on iPhone and android- when a user opens the app they have the option to create a new augmented reality object/photo or to activate one with there camera- A user looks at something with there phone and takes a photo using there phone, they are then able to assign 3 links to that photo ie vimeo/youtube videos (to be played within the app) or a link to a website etc. this information is then uploaded to our server- When another user looks at the same thing using there phone/the app they are presented with the links the other user assigned to itWe would like a web backed that would allow us to see edit/delete the photos/links, edit users give them more credit etc...We would like an advertising banner on all pages of the app with an in app purchase to remove adsWe would like to limit a user to being able to take 3 images when they first get the app - we would then like to be able to sell more using in app purchasaes

  • $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.

  • $3157 USD Today

    Looking for a similar application as this one. Please quote me the estimated price.

  • $25 USD/hr Today

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

  • $250 AUD Yesterday

    I need someone to create an iOS app for my business. The app should be functional and professional. The app should also follow the branding of my business.Please message me if you have any questions.

  • $3000 USD Yesterday

    Looking for a dedicated independent developer to code and design our idea for an iOS platform - events mobile application with location based services, an exciting market twist, and a few user friendly features. Would like a base product in about 5 months. Willing to discuss release time if developer has other commitments.Expectations:Weekly benchmarks with daily updatesNightly availability (for around a half hour)A team player personalityGood communicatorExcitement about the ideaWillingness to do whatever it takesLooking for:A developer willing to become a lifetime partner with the initial release and a fairly low, but substantial amount of compendation. ~ 20% of business + $1500ORA fair price around $14 - $17 depending on experience and expected time of delivery for initial release.Please reach me ASAP to schedule a skype meeting time with my business partner and I.Any questions please message me!THANKS SO MUCH FOR YOUR CONSIDERATION!Ongoing Position: Designer, DeveloperProject Stage: I have designs/sketchesDevices: iPhone, iPad, Android

  • $1578 USD Yesterday

    An app for Apple iPhones will pay well for quality work

  • $421 USD Yesterday

    I need someone to create an iOS app for my business. The app should be functional and professional. The app should also follow the branding of my business.Please message me if you have any questions.

  • $4842 USD Yesterday

  • $52 USD/hr Yesterday

    DO NOT APPLY if you do not specifically have experience using the Mobile SDK on iOS running in Background Mode on a native custom app. We have a project for an experience developer with strong English skills. Our users are finding that they are getting logged out of our iOS App. Salesforce is logging users out of our app. It is happening in a way that we can not replicate in our test orgs. How would you begin solve this issue?Please make your response to this posting focused around how you can help us solve this problem. We have a lot of other work for the person who ends up getting this job and solves the problem.

  • $2947 USD Yesterday

    Programmer wanted for mobile app development for IOS and Android System. Development Contents: - Mobile App is broken up into 3 sections 1 section for IOS/Android phone development and 2 for tablet development. ○ These 3 sections must be able to communicate and share all information between each other. - There are around 28 pages to program total○ 12 pages in phone app ○ 16 pages for table development - These pages contain: Social network, Customer Services, Customer Management and Loyalty, Customer/Inventory Reporting , Ticketing, and Database for each sections. Will purchase any programming scripts/APIs necessary to cut down on build time must be able to package scripts together Full details of project contains will be disclosed when nondisclosure/compete is signedEstimate Time for Completion: 2 months Requirements:- Must have viewable portfolio of previous work related to the &quot;development contents&quot; above - Programmers must have experience with mobile app development - Programmers must be able to understand pre-purchased programming scripts and assemble together to make complete package - Must know Google APIs and algorithms to Plugin to App. - Some light design work maybe required- Preferably would like developer to be located within South-West United States however nationwide and International bids are also encouragedPayments:There are 3 options for payment for this app. Please note since work cannot be monitored unless you live in Las Vegas, this is not an hourly paid position. Please indicated what payment option suits you best when bidding.Option #1 - Fixed Payment - Payment will remain in an escrow account until the work until programming is completed. Payments can be received in increments upon completion of various sections. Please Bid Full payment amountOptions #2 - Revenue Share/Company Equity/Stock Options - This option gives option gives programmers opportunity to profit with the company. Revenue Sharing and/or company equity will be provided in exchanged for programming. After VC finalization programmer will have option of Salary position to maintain upkeep of app. Please indicate or inquire about this method with bid of $1 Options #3 - Fixed Payment with Revenue Share/Company Equity - Developer will be paid fix amount and given equity of company and/or shared revenue made from use of app. Fixed Payment, Company Equity and Revenue Share is negotiated

  • $2631 USD Yesterday

    Seeking company to build mobile app that relies on GPS technology. Works in background and GPS refreshes every 30 minutes or hour. Displays items based on GPS location.

  • $10526 USD Yesterday

    I need to develop an app that will feed from my MLS provider to an app/website all the current listings. RETS AND IDX experience necessary. Google Maps capability. WIll need an app and website. Search based on current location, city, zip, price, etc.

  • $5263 USD Yesterday

    I will provide all Artwork and graphics for the app.Compatible with iOS6, iOS7, iOS8Compatible with iPhone4, iPhone5, iPad and retina devicesCompatible with all Android Phones and TabletsNative Development Language:Will you be developing the iOS app using the newly announced programming language: SWIFTConfidentiality, Ownership and Source Code:I will have the ownership of the product will you provide me with the Source Code and the compiled app (.apk for Android devices and .ipk for iOS devices)App Features & Requirements:The mobile app that I would like to start with is a Reminder App, following are some of the features:The app should have 3 Reminder Types: Voice Recorded Reminders, Text Reminders and Photo Reminders (using the phone&quot;s camera and Photo Library)Reminders have the following actions: Add / Edit / Delete and Manage.The app should be able to sync data to Cloud Services (such as iCloud, Box, Dropbox, Google Drive and so on...)The app should be in multiple languagesThe app should have a user-to-user sharing feature, meaning that if I created a voice reminder, I can send it to another user who also is using the app.

  • $3052 USD Yesterday

    I am looking to create an event app &quot;HUOPLA&quot; one in which a user can see what type of events (party, concerts, art show etc etc) are happening on different days. I have attached some app designs so you can get an idea of what i need. i got the concept from if you want to take a look at that as well. main Functionality:Need users to be able to post events (with relevant information) for people to see and possibly say they are attendingneed users to be able to follow each otherneed users to be able to comment and upload pictures and videos on event pages when the event is &quot;live&quot;need a calendar for events that user wants to go; calendar will also serve to see what events are happening that day.of course it will be more and i look forward to speaking to you all.thank you

  • £36 GBP/hr Yesterday

    An opportunity to be​ part of a new and exciting startup with big plans. Campus Society’s vision is to be the all in one online platform for students across the world. We are excited to announce we have already seen 6000 users join the site in only two months of the beta launch.The developer will be expected to actively participate in, the design, development and release of the companies next generation of HTML5/Javascript browser and mobile based applications.The successful candidate will be in their element developing complex, standards-based, full-stack, enterprise applications, both for the browser and mobile devices alike, while demonstrating a passion to push their boundaries.The team is Agile focused with two week iterations, therefore exposure to a collaborative working environment would be beneficial. You should be a self starter and be able to hit the ground running. With strong analytical, problem solving and communication skills, you will be able to handle competing demands and manage your workload effectively.Required skills:- At least 4 years commercial web development experience- Previously built cross-platform mobile apps with standards-based Web technologies, using either of the PhoneGap or Sencha Touch mobile frameworks- Interface design for complex, data rich, low latency, trading applications- Commercial experience of engineering complex, OO, scalable Javascript applications- Expert understanding of software design principles and design patterns – MVC MVVM- Experience with Lifecycle Management Tools such as Jira, Jenkins, Svn and Git.- Javascript, JQuery and HTML, CSS2/3, Less/Sass, Grunt/Gulp/BowerDesirable Skills and Experience:- Comfortable working with Restful or SOAP based web services, XML, JSON etc .- Experience with Agile software development methodologies (Scrum/TDD).- AngularJS, JQuery, Backbone, RequireJS, NodeJS, Grunt or Bower.- JavaScript Design Patterns and code modularisation- CSS preprocessors such as Rework, Less and Sass.- Testing Frameworks/runners – eg. Jasmin/Mocha, Karma/Protractor- Graphic design and UI/UX expertise/enthusiasm

    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