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Cocoa Upwork freelancers typically receive a client rating of 4.69.

Last updated: October 1, 2015
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Jason M.

Jason M.

Software Developer

Canada - Tests: 2 - Portfolio: 4

Good Technical Fellow who can handle the most difficult jobs across diverse product family and technology library. My previous jobs include software performance optimization, software engineering process design and management. Above 8 years in direct hands-on coding. My skills include great software development practices and tools, including Virtual environments, Source control, Remote development, Issue tracking , Build , Packaging and test automation. Develop both desktop and Web applications using advanced technologies , which include : Java/J2EE, XML , XMLSchema, J2ME , Cocoa , Objective-C , UI Components with Swing /AWT, Web Frameworks such Hibernate,JSF,Struts... Mobile Developer : iOS Recent Application: Property Appraisal Applications for iPhone and iPad

86% Job Success
$30.00 /hr
88 hours

Ruben Semerjyan

Ruben Semerjyan

Inovative Mobile VOIP, Social, Audio/Video Streaming Developer

Armenia - Tests: 2 - Portfolio: 1

I am an innovative, extremely detail oriented and perfectionist Software Development Architect, with expert knowledge in VoIP, audio/video streaming and processing, messaging and social media. My a little over 8 years of experience in VoIP industry gave me a strong knowledge of the protocols, technologies and available solutions. 3 years of successful mobile applications development, architect and project management gave me confidence in creating robust and technologically challenging applications. I am passionate about developing robust, innovative and leading edge applications, getting increasingly challenging assignments and applying disruptive technologies. Looking for a work on technologically challenging projects (in an agile environment preferably), while offering my expert knowledge base, ability to learn quickly and apply new techniques. I usually bid slower than others, because of reading the full job description, trying to estimate all requirements, needed technologies and solutions.

100% Job Success
$25.00 /hr
28 hours

Artem T.

Artem T.

Expert Web developer

Ukraine - Tests: 10 - Portfolio: 7

Hi, I'm Artem, a freelancer from Ukraine (UTC +2) In my portfolio, there are a few projects that I've developed. I believe that my strong points are my Creativeness and Punctuality. Over the last 7 years, I have developed many interested projects using html5, css3, php, mysql, javascript, jquery, etc. While working on a new project, I like to chat with the client, so that I can have a clear understanding of his/her needs and vision of the project. I'm honest and fair. I also have some experience in the following areas: SEO optimization, product management and QA management Thank you in advance for your time and consideration. I look forward to working with you soon.

75% Job Success
$13.33 /hr
53 hours

Quang Le

Quang Le

Senior iOS/Java developer

Vietnam - Tests: 5 - Portfolio: 9

I'm a talented software engineer specializing in iOS platform with 4+ year experience and 3 years for Java technologies. Over the last 4 years, I have developed various iOS applications using: - UIKit framework, Core Graphics for customized UI components - Core Data, iCloud integration for data storage - AV Foundation, Core image - Rest service integration using well-known libraries like RestKit, AFNetworking - Facebook & Twitter integration using SDKs - iAd, In-App purchase - Offline Map using route-me library On Java, I have strong expertise in many web based frameworks using IoC container, Servlet, JSP, Groovy template, WebUI framework, Maven, Git. My strengths include ability to work under pressure and capability of logical analytical thinking in resolving problem. I'm also able to study and apply new technologies quickly. I'm looking for opportunities to assist you in making iOS robust applications from the ground up. Please see my professional work here: Your hiring will be appreciated as the contribution for my open source projects on this site. Best regards, Quang Le

Groups: Corona Labs

$27.78 /hr
432 hours

James O'Brien

James O'Brien

Software Developer

United States - Tests: 9

Over the past 10+ years, I've worked with the following Microsoft Windows based technologies; both for desktop and web application development: Visual Studio 2005,2008 VC++/ MFC, C#/ASP.Net, c#/Winforms, WCF, MS-SQL Borland C++ Builder Borland Delphi WIN32 API In the past few years I have been working with more and more open-source technologies on a variety of web-based projects with emphasis on usability and cross-browser support. Unix/Linux PHP, Symfony Framework Apache jQuery Wordpress MySQL Java General Web-based technologies: CSS 2.0 javascript HTML/XTML JSON AJAX XML/XSLT

$22.22 /hr
22 hours

Surabhi V.

Surabhi V.

**Could try me before hire** iOS / Android / Unity3D

India - Tests: 2 - Portfolio: 50

To be Best in -- Lamp -- .NET -- E-commerce -- Mobile Applications (iOS, Android , Blackberry, Windows) -- Mobile Games (iOS, Android, Windows) -- Product Architect -- Cloud Computation *My objective is to achieve significant growth and name in market space adapting innovative and technically correct IT services model. *I have skilled in Apple's, Blackberry, Android, Windows Mobile, Java/Symbian developer tools like Xcode, Interface Builder, iOS, Cocoa Touch framework, Objective C, Eclipse, Netbeans, etc Leveraging the best of Mobile's technologies and using Social and other APIs. Skills: Social Integration (FB/Twitter/Renren/Weibo/QQ) GPS programming In App Purchase Push Notification Xml, Json Image Processing Audio and Video Streaming Ads(iAd/Chartboost/Revmob/TapJoy/Admob/Flurry) Webservice API(PHP/JSP/Perl/Python/MySQL) *I am strict on meeting optimum time-to-market periods. Understanding the core processes of mobile app development and build third-party applications that are as interactive and easy-to-use as native applications and Cross platform ( Phonegap, Titanium). * Mobile Games Skills: Corona SDK, Cocos2D, Cocos2D-x , Game Salad, iTorque 2D, Sparrow, Unity 3D , EMO , Mono Frameworks, illustrator and Photoshop.

89% Job Success
$17.78 /hr
839 hours

Boris Sokolov

Boris Sokolov

Expert iOS App Developer with various mobile development experience

Russia - Tests: 9 - Portfolio: 9

Provide the best service with detail-oriented professional with a vast knowledge of software, framework and strong leadership skills seeking to well-versed in structuring, developing and implementing interactive mobile & web solutions, assisting clients in all troubleshooting endeavors. Have developed 100+ mobile apps of following categories. - Social networking: Like & Share, Dating service, Events management, Messaging services - Finance & Business: Card reader, Budget management, Stock chart, Currency Converter, - Health & Fitness: Fitness training, Running, Bodybuilding, Health Training for women, WeightLoss, - Photo & Video: Instagram, Photo-booth style, Greeting card, Frame & Caption - Catalogues: Real-estate, Hotel & Flight, Food & Recipe booking, - Geo location navigation: Travel, Find near - Education: Language learn, Storybooks, Game for Kids - Lifestyle: Fashion & Shopping - Medical: Health care, Medical service - Health & Fitness: Workout, Bodybuilding Training, - Cinema, Music, Radio, TV, Streaming apps - News, Sports, Travel, Weather, Magazine apps -Delivering top quality with professional service -Always work with creativity and fast paced development -Devoting my full time, since this is my full time position. My major areas are xcode, cocoa, cocos-2d, twilio, storyboard, core-java, javascript, j2me, swift, NDK, eclipse, ios8, keyboard framework, ios-development, iphone-app-development, ipad-app-development, iphone-ui-design, ipad-ui-design, mobile-app-development, android-app-development, iphone-ui-design, ipad-ui-design, location-based, food & recipe, real-esate, restaurant, hotel-flight booking, nurturion, health-care, fitness, photo editing, video editing, social sharing, messaging, dating, timer/reminder app-development, ibeacon, github, basecamp, xmpp, streaming(wowza), parse, aviary, gpu, in-app purchase, gps, amazon, xml/json, rest/soap, facebook, twitter, instagram, youtube, vuforia, icloud, iAd, adwhirl, revmob, flurry, paypal, stripe

$55.56 /hr
460 hours

Johan R.

Johan R.

Rockstar - iOS App Developer

Netherlands - Tests: 8 - Portfolio: 4

Over the last 7 years, I have developed a wide range of mobile apps using Object C, Java, Xamarin, and Phonegap including apps for startup companies and small businesses. My core competency lies in complete end-end management of a new mobile app development project, and I am seeking opportunities to build apps from the ground up for you or your business. I also have rich experience in developing web apps, so I can build web-services with mobile apps. In my experiences, I always did my bests to make quality apps for my customers. Quality is the most important thing in my works with real-time conversation, flexible position and good results. I would prefer long term relationships with clients. Thank you. Johan

83% Job Success
$68.00 /hr
54 hours

Yasir Ayaz

Yasir Ayaz Agency Contractor

Oracle Certified Professional (Java SE 6)/ iPhone,Android Developer

Pakistan - Tests: 6 - Portfolio: 26

A results-driven, customer-focused, articulate and analytical Senior Software Engineer who can think “out of the box”. Strong in design and integration problem solving skills. Expert in Java, Objective-C, .NET, iPhone SDK , Android SDK and Sqlite with database analysis and design. Skilled in developing business plans, requirements specifications, user documentation, and architectural systems research. Strong written and verbal communications. Interested in a challenging technical track career in an application development environment. Experienced in: Engineering web development, all layers, from database to services to user interfaces Developed Wide range of iOS and Android apps. Supporting legacy systems with backups of all cases to/from parallel systems Analysis and design of databases and user interfaces Managing requirements Implementing software development life cycle policies and procedures Managing and supporting multiple projects Highly adaptable in quickly changing technical environments with very strong organizational and analytical skills Worked in Agile Development Process as well as waterfall.

Associated with: Glitznetic

$20.00 /hr
1,680 hours

Zhenya Tulusha

Zhenya Tulusha

iPhone/iPad & Android developer with more than 3 years experience

Ukraine - Tests: 1 - Portfolio: 22

4 years ago, I developed a wide range of websites using HMTL, CSS, PHP, and MySQL. The biggest part of them was e-shops developed and modifide for KTTSoft company. I start my carier of Mobile Software developer in KTTSoft company too. For last 3 years I have been highly integrated with mobile software development for iOS and Android (especially for iOS). For this period of time learned a lot of mobile technologies and made many different applications. You can check some of them on my portfolio page I mostly worked for DIMALEX LLC and got a lot of experience in mobile technologies and mobile developers team leadership.

$20.00 /hr
75 hours