Fermé

Mobile Xamarin / C# Web services / Social Media

Extending a mobile app for Android and iOS plaforms using Xamarin and C#. The project also involves creating c# web services or c# cloud services to communicate to the mobile app and third party api's. Designing a back-end database using SQL Azure. The mobile app will communicate with a number of web services also and integrating to various social media providers using their native api's from the mobile app. Sending messages to api's need to be verified. The app should also make use of multi-threading wherever practical. Highly optimisied code and fast response times are a must.

General Requirements

1. 100% Fluent English (read, write and speak). All Communications in English in a clear and precise manner.

2. Work from written specifications, but also capable of making own decisions and on own initiative when required.

3. Able to easily adapt to changes in user specifications from one development phase to another.

5. Provide clean concise code.

6. Fully familiar in reading API documentation and recognising pitfalls.

7. Provide fully tested app deliverables.

Technical Requirements

1. 100% familiarity with Xamarin, C#, Cloud/ASP/MVC Web Service technologies.

2. Experience in interfacing with SecureTrading API's for credit card authorisation

3. Experience in handling the OAuth/OAuth protocols from within a Xamarin mobile application.

4. Experience in interfacing with Native social media API's, Facebook, Twitter, LinkedIn and Instagram to send messages to a users wall.

5. Experience in dealing with XML/HTTPS Api's to a custom Host from within a Xamarin mobile app.

6. Experience in communicating Xamarin to own web service running as Azure cloud service or IIS web service.

7. Creating Azure Cloud or IIS web services to send and receive data from the mobile app. CRUD.

8. Creating Azure Cloud or IIS web services to send and receive data from another api (XML). CRUD.

9. Full understanding and implementation experience of multi-threading in a Xamarin App.

Compétences : Programmation C#, Serveur SQL Microsoft, Téléphone portable, Sécurité Web, Xamarin

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N° du projet : #14355478

98 freelance ont fait une offre moyenne de 8125 € pour ce travail

zhengnami13

Hi I'm a Xamarin developer. I have 4 years experience with Xamarin. Also I'm very familiar with creating C# web service and SQL Azure. Please check my skill. https://www.freelancer.com/projects/Android/PDF-M Plus

10000 € EUR en 70 jours
(172 Commentaires)
8.6
jastp

Hi, I've read the details you mentioned and I'm interested in working on this project! I will provide you final time and cost estimate, Once we discuss everything over chat. Relevant Skills and Experience Please have Plus

8823 € EUR en 30 jours
(188 Commentaires)
8.6
aistechnolabs

Greetings, I am very thankful for this opportunity. It’s really exciting that we have below similar kind of expertise and work experience: https://itunes.apple.com/us/app/face-swap-editor-to-morph/id986073281?mt= Plus

9058 € EUR en 40 jours
(25 Commentaires)
8.2
contact2phpsl

Greetings We have gone through your given details. WE are ready to deliver the job. Please interact with us. I have vast experience over Xamarin. I can assure you for a quality work from my side. Kindly find belo Plus

5294 € EUR en 30 jours
(401 Commentaires)
8.0
mobileservice001

https://www.dropbox.com/s/knj2fgmi932w7b8/second%20bid%20text.txt?dl=0 here is my proposal Relevant Skills and Experience object C, Xamarin Proposed Milestones €8333 EUR - Milestone

8333 € EUR en 30 jours
(38 Commentaires)
7.9
monoLancer

https://www.dropbox.com/s/as1kgb329kjm4my/freelancer.txt?dl=0 Relevant Skills and Experience ObjectC, Swift, Xamarin Proposed Milestones €8333 EUR - Milestone

8333 € EUR en 30 jours
(48 Commentaires)
7.8
8823 € EUR en 30 jours
(51 Commentaires)
7.6
Yknox

Dear, I am Smile Song, Mobile developer in China. I've just read your job posting and I’m very interested. I'm a certificated freelancer with almost 600 good reviews from clients. I have experienced knowledge in ev Plus

9278 € EUR en 30 jours
(285 Commentaires)
7.8
hemanshusondhi

30+ team including 22 full time Mobile apps developers. In short, if you need a team who offers *real English* communication, optimized code, AND in time and within the budget, then we are the choice. Relevant Skills Plus

8000 € EUR en 30 jours
(43 Commentaires)
7.9
xiaomingming

How are you? I am a Mobile & Web developer who have 10 years experience of program develop and 5 + years in mobile. My main field is social I am interested in your idea . so I hope to chat with you for details Plus

6000 € EUR en 30 jours
(72 Commentaires)
7.5
AppXonedotCom

Hello Matthew, I'd like to get further insight into actual features of the app to recommend whether Xamarin would be a good choice for that stable app.As recently we came across many clients who had problems with Xa Plus

14000 € EUR en 50 jours
(59 Commentaires)
7.5
MobiStudioz

Hello, Below is the brief of project scope ►►Project Title- -Mobile Application Development. ►►Kindly communicate with us so that we can discuss the job post. ►► Our Profile ◄◄ ► https://www.free Plus

8000 € EUR en 90 jours
(22 Commentaires)
7.3
technorizen

Hello, I m fulltime available for work , I have 5 years of experienced on mobile application (Android & iphone ) and App admimn with development web services where admin can manage the app from backend I have Plus

8729 € EUR en 50 jours
(95 Commentaires)
8.0
sleith

Hi, i’m senior android and ios developer for over 5 years, working at home full time freelancer. I have team to help me on backend side for faster development. Thanks, hope we can work together :) ###### I've done Plus

8947 € EUR en 60 jours
(31 Commentaires)
7.5
8823 € EUR en 30 jours
(18 Commentaires)
7.1
suju8811

Hello I have rich experiences in android ,ios area. I have developed several design ,content management,gps,map,music,video,social,chat,game... apps. I can develop iOS project using both objective c and swift langu Plus

7647 € EUR en 30 jours
(72 Commentaires)
7.4
8823 € EUR en 30 jours
(43 Commentaires)
7.3
Anuitex

We are the team of IT professionals with more than 7+ years experience in C#/.NET and deep specialization in Xamarin development for iOS and Android. Relevant Skills and Experience C#, .NET, Xamarin Proposed Mileston Plus

10000 € EUR en 30 jours
(39 Commentaires)
7.4
leadconcept

Dear Sir, I have read Project Description & . understood everything but I really need more detailed requirements or at least high level features to estimate it precisely, because based on the project description, it Plus

9411 € EUR en 80 jours
(10 Commentaires)
7.3
amitorada

I can take it if you want Native instead of Xamarin application. Hi, I have 5+ years of experience in Android/iPhone/iPad Application development. I have developed applications for range of domains like eCommerc Plus

10000 € EUR en 45 jours
(104 Commentaires)
7.2