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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.

Kỹ năng: Lập trình C#, Microsoft SQL Server, Mobile App Development, An ninh Web, Xamarin

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Về Bên Thuê:
( 0 nhận xét ) dublin, Ireland

Mã Dự Án: #14355478

97 freelancer đang chào giá trung bình €8157 cho công việc này

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. [url removed, login to view] Thêm

€10000 EUR trong 70 ngày
(173 Đánh Giá)
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 Thêm

€8823 EUR trong 30 ngày
(195 Đánh Giá)
8.7
aistechnolabs

Greetings, I am very thankful for this opportunity. It’s really exciting that we have below similar kind of expertise and work experience: [url removed, login to view] Thêm

€9058 EUR trong 40 ngày
(25 Đánh Giá)
8.2
€8823 EUR trong 30 ngày
(61 Đánh Giá)
7.9
mobileservice001

[url removed, login to view] here is my proposal Relevant Skills and Experience object C, Xamarin Proposed Milestones €8333 EUR - Milestone

€8333 EUR trong 30 ngày
(40 Đánh Giá)
7.9
monoLancer

[url removed, login to view] Relevant Skills and Experience ObjectC, Swift, Xamarin Proposed Milestones €8333 EUR - Milestone

€8333 EUR trong 30 ngày
(52 Đánh Giá)
7.9
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 Thêm

€5294 EUR trong 30 ngày
(416 Đánh Giá)
8.0
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 Thêm

€9278 EUR trong 30 ngày
(305 Đánh Giá)
8.0
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 Thêm

€8000 EUR trong 30 ngày
(44 Đánh Giá)
7.9
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 Thêm

€7647 EUR trong 30 ngày
(78 Đánh Giá)
7.5
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 Thêm

€6000 EUR trong 30 ngày
(75 Đánh Giá)
7.6
jinthreek89

How are you? After carefully reading your project description, I'm very interested in your project and it caught my eyes. Also I understood your project scope and features entirely. Based on analysis of the project, Thêm

€5000 EUR trong 30 ngày
(34 Đánh Giá)
7.4
DavidLiu80

Hi, I just double checked your project. After checking, I am sure I am fit on your project. I have got great experiences and skills for mobile & web development and built over 30+ apps and sites so far. Also I can en Thêm

€7058 EUR trong 30 ngày
(77 Đánh Giá)
7.8
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 Thêm

€10000 EUR trong 45 ngày
(110 Đánh Giá)
7.4
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 [url removed, login to view] recently we came across many clients who had problems with Xa Thêm

€14000 EUR trong 50 ngày
(59 Đánh Giá)
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 ◄◄ ► [url removed, login to view] Thêm

€8000 EUR trong 90 ngày
(22 Đánh Giá)
7.3
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 Thêm

€8947 EUR trong 60 ngày
(31 Đánh Giá)
7.5
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 Thêm

€8729 EUR trong 50 ngày
(106 Đánh Giá)
8.1
alexsun1222

Hi, I have 5+ years experience in Xamarin. Now i'm working with [url removed, login to view] and also I can do [url removed, login to view] & Xamarin.Droid. Also i know Shared & PCL projects and MVVMCross. I have rich experience in native rend Thêm

€8823 EUR trong 30 ngày
(40 Đánh Giá)
7.0
€7894 EUR trong 30 ngày
(79 Đánh Giá)
7.2