> Markdown version of [/jobs/ext/488430-mobile-developer-ios-android](https://www.wearedevelopers.com/jobs/ext/488430-mobile-developer-ios-android). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mobile Developer (iOS/Android) - **Company:** TWO95 International, Inc - **Location:** Philadelphia, PA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Ajax (Programming Language), Apple IOS, Apple Xcode, HTML5, Software Design Patterns, Design of User Interfaces, Mobile Application Software, JSON, JQuery, Object-Oriented Software Development, Simple Object Access Protocol (SOAP), Web Services, Extensible Markup Language (XML), Xamarin, Web Technologies, Objective C++, Restful APIs, Web Api - **Published:** June 8, 2026 - **Apply:** https://www.juju.com/job/00000000g6k08x ## About the Role + 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. ## Related Videos - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [WeAreDevelopers LIVE - the weekly developer show with Chris Heilmann and Daniel Cranney](https://www.wearedevelopers.com/videos/1309-wearedevelopers-live-the-weekly-developer-show-with-chris-heilmann-and-daniel-cranney) - [Unleash your web skills on native!](https://www.wearedevelopers.com/videos/122-unleash-your-web-skills-on-native) - [Introducing JSON Structure](https://www.wearedevelopers.com/videos/100219-introducing-json-structure) - [There's an app for that - on the role of cross platform development in the app development ecosystem](https://www.wearedevelopers.com/videos/278-there-s-an-app-for-that-on-the-role-of-cross-platform-development-in-the-app-development-ecosystem) ## Related Articles - [Cross Platform Mobile Development Frameworks to Use in 2025](https://www.wearedevelopers.com/magazine/404-cross-platform-mobile-development-frameworks-to-use-in-2025) - [A Guide to Choosing the Right Tools for App Developers](https://www.wearedevelopers.com/magazine/391-a-guide-to-choosing-the-right-tools-for-app-developers) - [Native Web Apps: Are We There Yet?](https://www.wearedevelopers.com/magazine/83-native-web-apps-are-we-there-yet) - [Flutter Developer Salary [2023]](https://www.wearedevelopers.com/magazine/199-flutter-developer-salary-2023) - [Basic And Advanced Networking in Dart and Flutter](https://www.wearedevelopers.com/magazine/112-basic-and-advanced-networking-in-dart-and-flutter) - [Web Development Best Practices: What The Data Tells us](https://www.wearedevelopers.com/magazine/84-web-development-best-practices-what-the-data-tells-us)