You've landed at the right place. oDesk is now Upwork. Learn about the new platform.

Objective C Jobs

169 were found based on your criteria {{ paging.total | number:0 }} were found based on your criteria

show all
  • Hourly ({{ jobTypeController.getFacetCount("hourly") | number:0}})
  • Fixed Price ({{ jobTypeController.getFacetCount("fixed") | number:0}})
show all
only
only
only
show all
only
only
only
only
only
show all
only
only
only
Hourly - Expert ($$$) - Est. Time: More than 6 months, 30+ hrs/week - Posted
Responsibilities - Design and build applications for the iOS platform - Ensure the performance, quality, and responsiveness of applications - Collaborate with a team to define, design, and ship new features - Identify and correct bottlenecks and fix bugs - Help maintain code quality, organization, and automatization Skills - Proficient with Objective-C or Swift, and Cocoa Touch - Experience with iOS frameworks such as Core Data, Core Animation, etc. - Experience with offline storage, threading, and performance tuning - Familiarity with RESTful APIs to connect iOS applications to back-end services - Knowledge of other web technologies and UI/UX standards - Understanding of Apple’s design principles and interface guidelines - Knowledge of low-level C-based libraries is preferred - Experience with performance and memory tuning with tools - Familiarity with cloud message APIs and push notifications - Knack for benchmarking and optimization - Proficient understanding of code versioning tools like GIT - Familiarity with continuous integration - Lots of experience in creating social media applications - Experience with SQLite databases syncing with the cloud
Skills: Objective-C iOS Development
Fixed-Price - Intermediate ($$) - Est. Budget: $4,500 - Posted
Only for individual developers or a small team. Do NOT apply if you are a part of big software development team. Job 1. Software Developer - Python/Django Backend We are developing an app for creating small social events. Like to get someone who has Python/Django experience to work on our api endpoints talked to by the iOS app. The candidate should have understanding of (or can learn quickly of) RESTful API, Amazon AWS admin, Celery and RabbitMQ for Push Notifications and PostgreSQL. Python and Django framework Amazon AWS Celery and RabbitMQ PostgreSQL Git Job 2. Software Developer - iOS We are developing an iOS app for creating small social events. Like to get someone who has iOS/Swift experience. The candidate should have understanding of communicating with backend api endpoints, iOS frameworks such as auto-layout, map, core location, push notifications, etc. iOS/Swift Auto-Layout Communicating with backend API endpoints Map, Core Location, APNS Git Please explain in your reply which job you are applying and why you think you are a fit to the job. Also, provide your skype ID to start discussion soon. Looking forward to talking to you.
Skills: Objective-C Django iOS Development Python
Fixed-Price - Intermediate ($$) - Est. Budget: $200 - Posted
Hello, This is a Example Description Description Kdeals-app is a free VoIP audio and video Dialer to make VoIP call from the Android Phones,Iphone-Phones,Blackberry,window/Nokia & Tablets. It works over Wi-Fi/2G/3G/4G/EDGE/HSDPA kdeals Dialer Must support high quality audio & video codecs like, G729,G729a, G.726 ,G711a, G711u, g722, VP8, H.263-1998, H.264 etc. Compatible with any SIP based Softwitch Connectivity through WIFI/3G/4G/Edge/HSDPA Login by Your SIP server, SIP user & Password Outgoing and incoming VoIP calls Address book integration Calls History Loudspeaker Microphone on / off work in background mode Excellent Voice Quality Audio Codecs Support, G729, G711a, G711u, G722, AMR & GSM,PCMA/G.711 A-law,PCMU/G.u-law Video Codecs Support, H.263, H.264, VP8 AMR Speex16khz Sppex8khz Speex 32 Khz Opus 48khz Silk 24khz Silk 16khz iLBC AAC-ELD 22khz AAC-ELD 44khz Compatible with Android Phones & Tablets OS version 2.6 and above ETC....... Codec Section for Voice: Codec Section: Speex 32 kHz >> Automatic Selected Speex16khz >> automatic Selected Speex8khz Opus 48khz Silk 8khz Silk 12khz Silk 16khz Silk 24khz >> automatic Selected GSM 8 kHz AAC-ELD 22khz AAC-ELD 44khz ISAC 16 kHz ILBC 8 kHz AMR 8 kHz AMR-WB 16 kHz CODE2 8 kHz G729a >> automatic Selected G729 >> automatic Selected G711a G711u G722 G726-32 8 kHz G726-24 8 kHz G726-16 8 kHz PCMU 8 kHz >> automatic Selected PUCMA 8 kH8 >> automatic Selected RFC-2833 >> Automatic Selected QUAD-BAND >>GSM850, automatic Selected GSM900, >> automatic Selected GSM1800 ,>> automatic Selected GSM1900 >> Automatica Selected Support: Description : This app must be a customize SIP/XMPP based VOIP/IM app as my requirement and have ready for use without no Delay Registration when Consumers/Customers download the application.In all Mobile-voip-app Registration is depending on the Developer with code implementation during the production of the application You can review the following above in ( Description ) which will be needed from you to make the application running as a app in perfect condition. The application must work on open source Android/iPhone/web/windows mobile 8/mac/blackberry/Symbian SIP apps those work with Sip server like asterisk. For Example the app must also work on asterisk AMI (Asterisk management interface),AGI (Asterisk gateway interface). 2) Below Must be integrated as a Default when application download, See Below: Registration expire time >> 3600 Transport type >> UDP=5060 to 5080 Stunt Refresh Period == 30000 Send RTP DTMF Send SIP DTMF Send SIP INFO DTMF Noise suppression 2) Under >> Network, See Below: Registration expire time >> 3600 Transport type >> UDP=5060 to 5080 and UDP 10000 to 30000) RFC-2833 Stunt Refresh Period == 30000SIP INFO == automatically Selected 2+) We will Explain you about Complete network. 3) I already Design the presentation of the app how it should presented on a mobile-phone etc.. when downloaded by consumers, So in this case you would only need to Create your apk and implement the functionality of the application, in this email attachment you will see a picture which should be in the application which will come under Codec. ( Tab), when consumers click on codec's which should give them a option to Choose the codec which they wish to use during they Call. and the other image/picture in the attachment Must come under ( settings ) which give the consumer option to Configure the application for use of Voip-calls Chat-flow 4)Regarding My VOIP/ SIP app, as I discussed/mention the implementation of my requirements for chat-plow. Please check features list and let me know, I if you understand: - Personal Chat/ Group Chat - Send/ Receive Pictures/ Audio/ Video files through app - Conference audio/ video calls. Video call will be upto 4 persons at a time - Send / Receive emails similar to BlackBerry Messenger app. User can configure unlimited email accounts in the app and send/ receive email through - Offline message, user can send SMS from itself but received SMS will be saved into the native massage app of the device. Will use messages APIs to send unlimited messages. -Free Calling within the app. - Sending and receiving picture within app. - SIP support: app user can make call on mobile and landline numbers by getting services from SIP providers. Please get back to me with your latest feedback and do let me know if you understand the features list of the app. Look forward to hear . 5) No Mile-stones are no Escrow will be accepted because 99.9% of developers are not Honest they are only/telling lies,when the job is completed and applications is tested the money will be Paid to the Developer Through ELANCE. Thank you Regards Rakesh Singh
Skills: Objective-C Adobe Photoshop Android App Development Asterisk
Hourly - Intermediate ($$) - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
Ultimately we aim to promote a globally higher and sustainable standard throughout the food industry We are looking for a single or a group of experienced and professional app developers that will help us create an iOS Application for Iphone. Expertise in Objective-C and an outstanding sense of design and functionality are priority skills we are looking for in a developer.
Skills: Objective-C Database Administration iOS Development iPhone App Development
Fixed-Price - Intermediate ($$) - Est. Budget: $400 - Posted
Hello, I'm Looking android developer to develop one application. Which is integrated with payment gateway also. I need application which is working on all latest versions. Minimum 2.3 version allowed to use this application. I don't required to use website. so Application directly connected with the database. and interact with the database based on requested. I need security concern also. If you feel you can do this job. please get in touch. I need Complete source code as well. and its hosted on my google play store account (not on your account). I need pure app console ( I Don't wan't any 3rd party app development plateform) regards,
Skills: Objective-C Android Android App Development Android SDK
Fixed-Price - Intermediate ($$) - Est. Budget: $10,000 - Posted
In need of an experienced iOS mobile app developer who is able to work with various payment APIS. We are in need of a developer (or team) that will be able to completely build the iOS app from the ground up (front end, back end, UI / Design, and API work). Will provide more information to individual developers once NDA is signed.
Skills: Objective-C Apple Xcode iOS Development iPad App Development
Hourly - Expert ($$$) - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
Hello, I have an app that is written in PHONE GAP. This app is working on WEB, Android (2 apps) and iOS (1 app). The app is made to control other phones and block usage of apps and other items. We currently made some small changes in the app by redoing the registration. The changes require some additional changes to the APIs for verification. We want verification to be a phone number and not an email address, as it is right now. On iOS, the app seems to clutter at times when utilizing the application. We couldnt finalize fixing this for iOS 9+. thanks and good posting
Skills: Objective-C Apache Cordova CSS HTML
Fixed-Price - Intermediate ($$) - Est. Budget: $5,000 - Posted
We are trying to recreate the iOS application in android form. You must have several years experience with developing on android and have excellent english communication. The backend is on Parse and we want to continue using it (we know it is being discontinued). We strive for very high quality design. You must have an iPhone as well to test and match functionality. http://www.onupkeep.com/ https://itunes.apple.com/us/app/upkeep-maintenance-management/id921799415?ls=1&mt=8
Skills: Objective-C Android Android App Development Java
Looking for the Team App?
Download the New Upwork Team App
Fixed Price Budget - ${{ job.amount.amount | number:0 }} to ${{ job.maxAmount.amount | number:0 }} Fixed-Price - Est. Budget: ${{ job.amount.amount | number:0 }} Open to Suggestion Hourly - Est. Time: {{ [job.duration, job.engagement].join(', ') }} - Posted
Skills: {{ skill.prettyName }}
Looking for the Team App?
Download the New Upwork Team App