Mobile Application Developer

Title : Mobile Application Developer

Experience : 5 – 7 Years

Position : Contract

Duration : 3 – 6 Months

Key Skills : ExtJS, Sencha, Apache Cordova, Restful APIs

We are looking for a proficient Mobile Application Developer with hands-on experience in ExtJS, Sencha, and Apache Cordova to develop, maintain, and deploy hybrid mobile applications for Android, iOS, and Web platforms. The developer will also be responsible for preparing clear and thorough documentation throughout the project lifecycle.

You will be accountable for delivering end-to-end mobile solutions—from app development to app store deployment—ensuring performance, responsiveness, and security.

Responsibilities :

Develop hybrid mobile applications using Ext JS (Modern Toolkit) and Sencha, wrapped with Cordova for Android and iOS.

Build responsive web apps using the same codebase, ensuring feature consistency across platforms.

Integrate with RESTful APIs and handle local storage, offline data caching, and data synchronization.

Design and implement efficient local data models using tools such as LocalStorage, IndexedDB, SQLite (via Cordova plugins), or similar.

Handle medium complexity data structures, including relational models and nested data objects.

Ensure data integrity, performance, and security in both local and synced states.

Deploy applications to Google Play Store and Apple App Store, including certificate management and app signing.

Implement authentication, authorization, and secure data transmission.

Write clear, thorough documentation covering architecture, database schema, deployment, and user guides.

Collaborate with backend developers to define data contracts and optimize API interactions.

Participate in Agile ceremonies and contribute to planning, development, and testing activities.

Requirements :

5 - 7 years of hands-on experience in mobile / web application development.

Deep understanding of Ext JS (Sencha) framework, including components, stores, models, and views.

Proficient with Cordova for hybrid app packaging and native plugin integration.

Strong knowledge of JavaScript, HTML5, CSS3, and mobile-optimized design.

Medium-level experience in mobile data storage :

Working with local storage (IndexedDB, LocalStorage) or SQLite on-device

Syncing with remote APIs and managing offline / online data states

Experience integrating and consuming RESTful APIs securely and efficiently.

Familiarity with mobile app deployment processes for both iOS and Android.

Strong Git version control and code management practices.

Ability to write and maintain high-quality technical documentation.