Ios Development Objective C Freelancers

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Suman K.

Suman K.

iOS,iPhone,iPad,Objective C,Mobile development

India - Tests: 4 - Portfolio: 1

My career in IT spans nearly 9+ years. Got a good knowledge and hands on experience in - X-Code - Cocoa Programming - Objective C - Unit Testing - Watch Kit - SQL Database - PHP - MySql - Javascript - SOAP - REST - TestFlight, GitHub etc for project management. - Adopt in Aglie work flow.

$11.00 /hr
105 hours

Devang S.

Devang S.

iOS App Developer, Swift, Objective-C, Mobile App Development

India - Portfolio: 3

Over the last 4 years, I have developed a wide range of iOS applications using Objective-C language for startup companies and small businesses. My core competency lies in developing application from idea level to real life appstore app, and I am seeking opportunities to build applications from the ground up for you or your business. I also have experience in "Swift" and "Cocoa". I have also developed MAC OS apps. I can handle any kind of APIs and 3rd Party library.

$15.00 /hr
357 hours

Dimitar P.

Dimitar P.

iOS App Development for iPhone / iPad (Swift, Objective-C, iOS 9+)

Bulgaria - Tests: 6 - Portfolio: 19

Hello, my name is Dimitar and I am a senior mobile developer. I have rich experience of iOS app development since 2007. I am a passionate iOS developer working with Xcode, Objective-C, Swift and Core Data on a daily basis. Areas of Expertise: - Swift, Objective-C, iOS SDK, Watch, tvOS, AutoLayout - CoreLocation, MapKit, WatchKit, AVFundation, CoreGraphics, MediaPlayer, MessageUI, StoreKit, etc. - RestKit, Alamofire, AFNetworking, OpenTok, XMPP, etc Social networks: - Facebook, Twitter, Foursquare, Instagram, Tumblr, Google+ Web and databases: - Web services, RestKit, JSON, XML, CalDAV - SQLite, CoreData, MySQL Misc: - Git, GitHub, Asana, Pivotal Tracker, Slack - TestFlight distribution, AppStore submission - Graphics: Adobe Photoshop, Illustrator graphics extraction - UI/UX according to the Apple Human Interface Guidelines I own an iPhone 5, 6, 6 Plus and iPad 2, 3 to test on. My workstation is a Mac Pro with Xcode 7, Adobe Photoshop CC, and Microsoft Office installed. I'm now seeking opportunities that will allow me to further develop my skills by providing creative and high quality solutions to my clients. I enjoy new challenges on a daily basis, looking to overcome my own high standard goals. Thank you!

$48.00 /hr
6,327 hours

Michael Winter

Michael Winter

iOS developer

Germany - Tests: 7 - Portfolio: 6

I am a software developer based in Berlin, Germany with more than a decade of experience. During the course of my professional career I had the chance to work for a variety of different companies and clients including EA Sports. As a freelancer, I am strongly focused on iOS development. I can complete smaller projects on my own or work on larger projects as a member of a team. You can expect a seasoned and reliable professional with good English skills who understands client needs and pays great attention to detail. My main skills are: C/C++ Objective C iOS SDK cocos2d

$60.00 /hr
1,005 hours

Shahryar K.

Shahryar K. Agency Contractor

Expert in iOS/ Objective C development

Pakistan - Tests: 4 - Portfolio: 6

I am an iOS developer with 6 years of experience with iOS and overall more than a decade of experience with Software Development. Took the first ever iPhone app Development Class at Stanford University back in 2008 and since then working on iOS development full-time. I also teach courses on iPhone app development. So far, I have worked on more than 50 iOS apps

$30.00 /hr
563 hours

Oksana Kovalchuk

Oksana Kovalchuk Agency Contractor

Upwork TOP RATED Senior iOS Developer

Ukraine - Tests: 6 - Portfolio: 10

I'm Senior iOS Developer with 5+ years of iOS development and 7 years summary development experience. I have full understanding the process of commercial software engineering, systems development life cycle and reporting importance. Good skills in decision making, leadership, team building and motivating always help me with my team and my customers. Above is detailed information for people who want to know more ;) Summary of qualifications: 
Experience in requirements analysis, effort estimating and task scheduling got a lot of successfully finished projects and released products. I always pay attention to system usability and to source code quality, because I have respect for colleagues who can at any time to continue my initiative.
 I got a lot of experience of work in agile environments and successfully integrate it to all my projects since 2010 and can create full report of project status in a few minutes, I can react on deadline terms in a good time and find a best solution. 
Experienced in a teamwork and in working individually, I’m a team player with good communication and always ready to help or suggest. I have a real passion for creating applications and believe that interfaces should be easy to use and beautiful. Form and function go hand in hand to create great user experiences and I don’t like to think of them as “one another application” and leave it “as-is”. Technical skills: I have an excellent understanding of user experience, usability, visual style and Apple Human Interface Guidelines (HIG). Also I have strong knowledge of Object Oriented Programming, Objective C language, IOS frameworks and frequently used 3rd party libraries. Good knowledge of web-service communication, data formats and algorithms. Most of them: ✓ Fundamentals: iOS Code architecture and design; Multi-threading, CGD; Deep knowledge and great experience in web services architecture integration (JSON, XML, SOAP) and networking (TCP, HTTP/HTTPS, SSL); Profiling tools (time, CoreData, CPU, allocations); ARC and non-ARc memory management; OS Code architecture and design; Mobile project management; Experienced with publishing applications with iTunes Connect, also with in-App purchases. ✓ Core: CocoaPods, git, git submodules; Facebook KVOController; CocoaLumberjack, NSLogger, PonyDebugger; Reactive programming, Reactive cocoa; CoreFoundation; Experience with creating SDK and Frameworks; Creating and integrating static libraries; Parsers (XML, JSON, HTML), TBXML etc; Working with Blocks and BlockKit (long time ago) ✓ Multimedia: huge experience with Audio and Video (effects, recognition, analysis); CoreAudio and MediaPlayer Framework; FMOD Audio Framework ✓ Databases: CoreData; Realm; CoreData (Magical Record) background sync, creating utility; mogenerator (+ extending default templates, scripts); experience with SQLite, FMDB adapter ✓ UI: Very strong UIKit skills; CoreAnimation, Animation sequences, transforms, layers, shapes (including Facebook Pop); CoreText (NSTextStorage, custom attributes, paths); CoreGraphics; Custom UIViewController transitions; AutoLayout (Masonry etc.); AsyncDisplayKit; GPUImage (photo and video filtering, cropping, etc); Creating custom filters; Collection view custom layouts (very custom); Custom fast camera view; Dynamic phone formatters also reworking Google’s shitty libPhoneNumber; UITableView/cell layout customizations from custom insert/reload/remove animations, to dragging between tables, with animations, placeholders Creating custom iOS8 keyboards; Creating custom calendars, fighting with DST, time-zones changes Separate layouts (iPhone/iPad); Gesture recognizers (managing several recognizers including system gestures); NSLocalization and created my own Localize Framework; Experience with creating applications for multiple screen resolutions/sizes, like iPhone 3G ... iPhone 5, also with supporting iPad, including AutoLayout tool and before autolayout was announced. ✓ Networking: TCP, HTTP, HTTPS, SSL; Web service architecture and integration (JSON, XML, SOAP); Image caching (SDWebImage, FastImageCache); NSURLSession and AFNetworking (prefer first one). ✓ AppStore: In-App Purchasing (including subscriptions and Purchases validation (receipts) ✓ Advertisements: iAd; AdMob; AdColony; Tons of other advertisements platforms (including fixes for their poor SDKs). ✓ Analytics: Crashlytics; Google Analytics; Flurry Analytics. ✓ Tools: Paint Code; Reveal App; Creating custom Xcode plugin. ✓ Third-Party APIs and Libraries: Parse; Twitter; Facebook; Linkedin; Yahoo; Google; FourSquare; VK; PayPal; A lot of others. ✓ Location and Maps: CoreLocation; Location Services; Apple/Google/OSM/Yandex Maps ✓ Push and Local Notifications; Created Local Push Notification Manager. ✓ iOS integration: AddressBook SDK; Keychain; E-mail controller, SMS handler.

Groups: Application Developers Alliance

$55.56 /hr
2,010 hours

Roberto Garrido

Roberto Garrido Agency Contractor

Senior Mobile & Desktop Developer

Spain - Tests: 2 - Portfolio: 12

I am a Senior Mobile and Desktop Developer looking for new challenges everyday. My main interests are focused on 2D/3D and mobile videogame programming, and apps. Since I was in college, I always chose those projects and subjects related with mobile, videogame, and 3D graphics. I've always been an enthusiastic about graphics, and programming is not only my job, but also my hobby. I can divide my career into two main periods, first as researcher, then as professional programmer. I started working as an intern in a Research Center, where I developed my research and programming skills and participated in various projects, both as programmer and also as project manager, all of them related with mobile Virtual and Augmented Reality. I even published 3 articles in the field of 3D Computer Graphics, and attended various conventions. After my period as a researcher, I move to the professional industry where I work two years as main graphics programmer in a Simulation Company. There, I develop my team work ability, working everyday with colleagues of different professional skills, like 2D/3D designers. My main goal was to get a highly stable and flexible C/C++ based rendering engine, able to be used in multiple kinds of simulators, like trains, tranvs, and bus. My last full time collaboration in a company was now 3 years ago, in a medical imaging company. As part of the development team, I learn new APIs and frameworks related with the medical imaging world. My main contributions were on the 3D visualization module, where a doctor (specialized on aorta prothesis) could interact with a 3D representation of the aorta and determine the exact size of the prothesis to be implanted. The last 3 years of my career have been focused on my freelance programmer career. Here in upwork, I'm one of the top rated profiles, with more than 2,200 hours billed on my back. I sell programming services to both individual clients and startups, specifically in projects involving 3D programming, app programming, and videogames. I encourage you to have a look at my portfolio here in upwork and read the feedback I received from my clients. The success of your project is guaranteed with me! Here you can see a list of applications, languages, and tools I use in my daily life: Applications: Videogames, Games, 3D Editors, Medical Applications Programming languages: C/C++, Objective-C, Java, C#, Visual Basic, Javascript Frameworks/APIs: OpenGL, ARToolkit, Cocos2dx, UIKit, Qt, Ogre, VTK, ITK, OpenSceneGraph, Unity3D, WebGL, Three.js Platforms: Windows, Linux, Mac OS X, Android, iOS Programming Tools: XCode, Visual Studio, Eclipse, AppCode Also, here you can see a list of devices I own: iPhone 5S, iPad Air (Retina Display), iPad Mini (Non Retina Display), Android Xiaomi MI 2S, Macbook Pro (Retina Display), PC with Linux & Windows 7 installed.

$41.99 /hr
2,358 hours

Michael Dihardja

Michael Dihardja Agency Contractor

Full stack iOS and Android expert

Indonesia - Tests: 5 - Portfolio: 23

Top Rated oDesk Verified Mobile Developer! In short, I am first and foremost:a coder, and I always do my best to keep up with the high expectations set by my clients. Over the last 7 years, I have developed iPhone / iPad apps for companies such as Motorola, Warner Bros, Valspar, and some familiarity with Android apps. I also have developed a wide range of websites using HTML, JSP, Struts, and MySQL including sites for large companies such as Kenworth and Peterbilt. IF you want: - clean, quality code, memory-leak free software - on-time delivery with constant communications on the project progress - headache-free experience in your part, definitely contact me as I am more than happy to cooperate with you to build the next great app! You can give me the requirements and features that you want on the app, and I will review it and give feedbacks within 12 hours. If I can't do it since it's beyond my expertise, I will say so as to not waste your time, I wouldn't PRETEND to know everything and make you suffer in the future , like what some of the software contractors do. If I'm able to do it, I would contact you so we would arrange the working agreement some more. Hope that summarizes my objective and working ethics quite nicely. Feel free to contact me on any software development opportunities you might have! Mike

Groups: Application Developers Alliance

$88.89 /hr
1,828 hours

Ivan I. Parfenchuk

Ivan I. Parfenchuk Agency Contractor

iOS/Ruby on Rails Top Rated Developer

Russia - Tests: 7 - Portfolio: 13

Hello and thanks for considering hiring me for your project! My iOS experience includes proficiency in all the core iOS components and frameworks like UIKit, Core Data, MapKit, Core Animation, Quartz 2D and so on, integration with various APIs and web services. I usually use Cocoapods for managing libraries, both Storyboards and xibs for the interface, KIF/specta/expecta for tests and specs. I also switched to Swift for my new projects. My Ruby on Rails skill set includes working with MySQL/PostgreSQL, MongoDB, RSpec/TestUnit/Capybara, Slim/Haml/ERB/RABL, JavaScript/CoffeeScript, Ember.js, Sidekiq, Redis and other numerous gems and technologies. Feel free to contact me for any kind of work.

$40.00 /hr
1,916 hours

Alec Summers

Alec Summers

Programmer / Developer

United Kingdom - Tests: 2 - Portfolio: 10

I am a very keen iOS/Android developer with over 6 years experience working on mobile apps. I previously worked as a software engineer for Bosch based in and around Europe. As of may 2013, I decided to spend more time what I love doing... building apps. I am also a strong backend developer. Specialising on the awesome Parse service. I have over 3 years experience working with Parse ( and fully understand all technologies it has to offer. As well as Parse, I am fully able to develop unique backend systems through services such as AWS. I am an extremely quick learner and so far have not come across any app that has stopped me.

Groups: Application Developers Alliance

$55.56 /hr
2,190 hours