William C. Email & Phone Number

- Good Experience in React JS for creating interactive UI's using One-way data flow, Virtual DOM, JSX, React Native concepts.- Develop new mobile application on Android and IOS.- Building reusable components and front-end libraries for future use.- Deployed internal react-Native mobile application, developed react-native modules from scratch.- Implemented Kotlin with Android content providers for implementing features like sending E-mails, SMS, etc., from the app and designed… Show more - Good Experience in React JS for creating interactive UI's using One-way data flow, Virtual DOM, JSX, React Native concepts.- Develop new mobile application on Android and IOS.- Building reusable components and front-end libraries for future use.- Deployed internal react-Native mobile application, developed react-native modules from scratch.- Implemented Kotlin with Android content providers for implementing features like sending E-mails, SMS, etc., from the app and designed suitable GUI for these applications.- Converted existing UIKit code to SwiftUI to leverage the benefits of a modern and declarative UI framework.- Good experience in parsing JSON Data with and without third party API into Swift code.- Used design paradigms such as MVC, MVVM+C, Delegation, and Observer.- Developing the application from scratch using React Native and Redux.- Responsible for porting an existing web application into mobile view.- Responsible for design and development of various components such as tab bars, map view, image picker, date picker, push notifications, sign-in/out features, profile management and navigation using react-native. Show less

- Developed and maintained scalable web applications using ReactJS and NodeJS.- Engineered login front end functionality - including RESTful service calls, keychain, credential storage,routing, token verification, and error notifications for international Buick and Chevrolet mobile applications.- Developed hybrid mobile platform for applications using JavaScript and React Native, resulting in 88% code share between iOS and Android while reducing development time by 33%.- Used… Show more - Developed and maintained scalable web applications using ReactJS and NodeJS.- Engineered login front end functionality - including RESTful service calls, keychain, credential storage,routing, token verification, and error notifications for international Buick and Chevrolet mobile applications.- Developed hybrid mobile platform for applications using JavaScript and React Native, resulting in 88% code share between iOS and Android while reducing development time by 33%.- Used React 16.8’s new feature Hooks to rewrite/re-factor front-end application and truncated down 30% codes (better maintenance).- Experienced in monitoring and managing of Oracle instances using Enterprise Manager Grid Control(OEMgrid). worked on introductory Kotlin and dragged application through MVVM architecture.- Used TSLint tool that checks Typescript code for readability, functional errors, maintainability.- Worked extensively with Swift and Cocoa Touch frameworks.- Developed a front-end mobile application using React Native, Redux, Flex and JavaScript.- Architected application following Atomic Design Principal leading to 44% increased reusability ofcomponents.- Developed application by using CSS3 to give gradient effects and to develop various page layouts,multi-level navigation and transitions.- Worked with GIT, Github Version control.- Developed the web application with the newest React features centralized with Hooks.- Refactoring old Objective-C code base to Swift.- Changed Redux action s to Promises, and Lifecycle Methods to asynchronous functions using ES7 async await to better manage ReactJS level state and cut Redux container development time by 80%. Show less

- Native iOS applications written in Objective-C.- Used design paradigms such as MVC, MVVM+C, Delegation, and Observer.- Led dev-ops migration from Jenkins to Circle Ci.- Wrote firebase cloud functions to send firebase cloud messages to both iOS and Android.- Used APN to send notifications to iOS devices through pushKit.- Used lazy loading to expand the number of readable secure chat messages.- Revamped the logic flow of creating new chat groups- Enabled TLS to our… Show more - Native iOS applications written in Objective-C.- Used design paradigms such as MVC, MVVM+C, Delegation, and Observer.- Led dev-ops migration from Jenkins to Circle Ci.- Wrote firebase cloud functions to send firebase cloud messages to both iOS and Android.- Used APN to send notifications to iOS devices through pushKit.- Used lazy loading to expand the number of readable secure chat messages.- Revamped the logic flow of creating new chat groups- Enabled TLS to our Kamailio servers for secure calling- Added keep alive timers to the app and servers to handle forced disconnections- Utilized JIRA to track and manage tasks- Version control was handled by BitBucket using git flow- Tracked crashes with Firebase Crashlytics- Used Firebase Realtime Database to store recent calls, chat messages, users, and devices- Refactored multiple layouts to flatten the view hierarchy to improve performance- Used node.js and firebase-tools to deploy new Firebase Cloud Functions- Show less