SUMMARY:

• Versatile Sr. Mobile developer with over 5 years of app development experience
• Highly seasoned programming expertise Objective - C and Swift 3 and 4.
• Experienced with iOS development platforms with XCode and Cocoa Touch framework.
• Experience with every stage of the Software Development Life Cycle like requirements gathering, design, implementation, and testing.
• Worked with multiple design patterns like MVC, Singleton, Delegation, Observer, and recently started working with MVVM.
• Used Grand Central Dispatch (GCD) and NSOperations to achieve fluid, concurrent solutions.
• Worked with webservices to download information on a background thread using URLSession and third-party frameworks.
• Worked on parsing XML and JSON information using the out-of-the-box JSONSerialization and XMLParser objects.
• Experienced using Storyboards, Xibs, and programmatically-generated dynamic content, supporting all screen sizes and device types using Auto Layout, Constraints, and Size Classes.
• Achieved optimum memory footprint using good design techniques and ARC.
• Persisted information to store important information and to achieve offline experience using Core Data, SQLite, User Defaults and Keychain.
• Used Breakpoints, Instruments, and analytics frameworks for logging and crash reports to debug applications and determine the exact source of the problem.
• Performed Unit Testing for various features and followed TDD for some projects using XCTest, OCMock and Method Swizzling.
• Experienced with version control using Git and working with Gitflow.
• Worked with Continuous Integration using Jenkins.
• Followed SCRUM in most of the projects to achieve Agile development environment with 2-week sprints.
• Encrypted sensitive user information with Keychain and implemented biometric authentication for Touch ID and Face ID.
• A team player, committed to hard work while being curious, enthusiastic, and ever-willing to learn new technologies.

TECHNICAL SKILLS:

• iOS
• Objective-C
• Swift 3, 4
• Xcode
• Cocoa Touch iOS SDK
• Core Data
• UIKit
• Alamofire
• REST
• JSON
• SQLite
• HTML
• CSS
• JavaScript
• JQuery
• PHP macOS
• Windows
• Linux
• Realm
• MVC
• MVVM & VIPER.

PROFESSIONAL EXPERIENCE:

Confidential - Roseland, NJ

Sr. iOS Developer

Responsibilities:

• The application was designed with the MVVM design pattern
• Migrated codebase from Swift 3 to Swift 4
• Created customized, reusable TableViews, CollectionViews, Buttons, and other UIElements for use throughout the whole application for most-efficient design
• Worked with Auto Layout to ensure project would look good in all screen sizes
• Used Realm as a database to ensure data persistence, even if the app was offline
• Worked with Push Notifications ensure the user had the best and most recent experience with the application
• Used Alamofire for RESTful webservices to communicate with servers and achieve network functionality
• Parsing XML and JSON from different services to gather user information, as well as conference information, call logs, message logs, and voicemail
• Achieved state-of-the-art UI achieved by fluidly-connecting callbacks from server to UI and displaying latest UX trends.
• Used SCRUM and Agile methodology in 2-week sprints.
• Extensive use of web sockets through the whole application.
• Implementation of Touch ID and Face ID functionality to login without a password.

Confidential - Bellevue, WA

Sr. iOS Developer

Responsibilities:

• Migrated majority of codebase from Objective-C-to Swift, with some legacy Objective-C code being bridged over
• Added customizations for TableViews, CollectionViews, UIImageView, and Buttons.
• Implemented Storyboards, Auto Layout, Constraints and Size Classes to ensure that the UI worked well on all screen sizes and device types
• Created a side bar menu for with easy to access menu options.
• Custom UIViews were created to present the user with a calendar view and add timesheets for specific days.
• Worked on designing a POC to see if migrating to Swift was feasible.
• Used Core Data and UserDefaults to create offline experience and ensure that basic information was available even when there was no connection.
• Helped with authentication and encryption of sensitive data to ensure security in the application.

Confidential - Norcross, GA

Sr. iOS Developer

Responsibilities:

• The entire application was redesigned and built in Swift from the ground up.
• Used MapKit, CoreLocation and GeoFencing to location apartments for rent in the desired city or neighborhood.
• Displayed available apartments in TableViews with custom cells and a MapView with custom annotations.
• Intense background processing and concurrency techniques added to view various floor plans and images for selected apartments.
• Ability to call or email designated person for the property added using MFMailComposeViewController and VOIP technology.
• Added offline experience, hand-off experience, favoriting, rating and reviewing properties using Core Data and webservice syncing.
• Worked with Social SDKs and Action Sheets to share apartment information.
• User Authentication and encryption added along with the ability to securely store user credentials in the Keychain for faster authentication.
• Used ScrollView with custom views to give a card-like layout and follow modern design techniques.
• Live streaming of videos was added using HLS and AVFoundation to display high quality videos of the floor plan, panoramic views, and a 360-degree virtual tour of the apartment.

Confidential - New York City, NY

iOS Developer

Responsibilities:

• Developed project entirely in Objective-C and Xcode.
• Used Auto Layout, Constraints and Size Classes to ensure that the app looked great on all screen sizes and device types.
• Implemented Handoff so that users could keep continue reading articles from one device to the next.
• Worked on designing a lag free experience to ensure fluid experience in the app while the content was being downloaded in the background.
• Designed and added unit tests using XCTest.
• Videos and images were downloaded on different queues and were made available as soon as the user opened the article.
• Worked with Push Notifications to ensure that the user was informed of the latest and top stories as they were added to the digital content.
• Worked on communication with the backend server; downloading information, parsing it, and displaying it to the user using ScrollViews with custom views creating a card-like layout.
• Worked on the ability to save and bookmark articles and sync them between devices.
• Helped redesign the application to the clean and modern UI/ UX design principles.
• Created multiple screens to customize the app experience.