# Mobile Developer (iOS/Android)

**Company:** [Two95 International Inc.](http://jobs.workable.com/companies/uBLbLticQ1T2pGzVbXvnAu.md)
**Location:** Philadelphia, United States
**Workplace:** on site
**Employment type:** Contract

[Apply for this job](http://jobs.workable.com/view/88cf6492-cd33-4090-a87c-66ee6e71d3d9)

## Description

Required Skills and Experience

-   Probably about 7+ years of building iOS / Android (iPhone, iPad and universal) applications with relevant SDKs and Tools.
-   Expert experience building in complex native mobile applications that successfully shipped to customers.
-   Knowledge of native mobile design patterns (iOS / Android ) and experience building sleek, high performance user interfaces.
-   Expert proficiency in Objective-C/ Cocoa, XCode and Android.
-   High degree of proficiency in Xamarin framework.
-   Expert knowledge of REST Services, Web APIs.
-   Experience on web service integration (SOAP, REST, JSON, XML).
-   Experience of development using web technologies.
-   Good understanding of OO programming and design patterns.
-   Good understanding of HTML5, JavaScript, jQuery and Ajax.