SUMMARY:

• 6 years of experience in me.T. and mobile app development, creating apps for iOS devices using Xcode and iOS SDK with Objective - C and cocoa frameworks.
• Built Rich User Interface applications, integrating with various Databases and Client - Server applications in iPhone/iPad. Application development using Objective-C, Swift, Cocos2D, Cocoa Touch, UIKit.
• Strong working noledge of Xcode, CocoaTouch, Objective-C, Swift, and iOS.
• Extensive experience in iPhone and iPad application development.
• Knowledgeable in Memory Management and Performance Improvement.
• Constructed and implemented UI designs using Storyboards with AutoLayout constraints, XIB files, and programmatically following Apple's iOS Human Interface Guidelines
• Experience in teh entire software development life-cycle including requirements gathering, design, coding, testing, debugging and maintenance.
• Expert in Object Oriented Programming with experience implementing MVC, KVO, and Singleton architectures
• Strong noledge in implementing core Frameworks like CoreLocation, CoreGraphics, MapKit, UIKit, and EventKit Frameworks.
• Familiar with implementations using AVFoundation for playing/streaming content as well as barcode scanning
• Worked extensively on XCode, Interface Builder and Instrument.
• Strong at using teh third-party frameworks TEMPeffectively.
• Highly-experienced with design patterns such as MVC, MVVM, Viper, Delegation, Singleton, Categories, Notification, KVC, KVO, Blocks.
• Experience integrating with multiple RESTful web services and parsing JSON responses.
• Utilized Mode View Controller architecture to help keep codebase organized and keep classes decoupled
• Experienced in working with Storyboard, Interface Builder, XIB files, program Interface and Auto layout.
• Regularly participated in pair programming sessions
• Experienced in an Agile Scrum development environment, participating in Sprints and Scrums; and employing Test Driven Development (TDD) and Continuous Integration.
• Working noledge on Bluetooth Low Energy (BLE) Communication, Unit testing and automated testing.

TECHNICAL SKILLS:

Programming Languages: Objective C, Swift, HTML/CSS, SQL

Web Services: RESTful, SOAP, JSON, XML

Architecture & Design Patterns: MVC, MVP, MVVM, Abstract Factory, Fa ade, Decorator, Builder, SingletoniOS Development App Extension Handoff

Data Persistence: Core Data, Realm

Testing: TDD Unit Testing XCTest Automated Testing Jenkins TestFlight

Software Project Management: Agile, Scrum, Pair Programming, Xtreme Programming, Software Development Lifecycle (SDLC), Sprint Planning, Requirements Gathering, Backlog, Daily Scrums, Task Prioritization, Working with Product manager, Scrum Master

IDEs/UI Tools: XCode Eclipse IntelliJ Visual Studio Storyboard, Xib, Interface Builder

Cocoa, CocoaTouch, CocoaPods, Reactive: X, ReactiveSwift, ReactiveCocoaCore Data, UIKit, CoreGraphics, Core Animation, XCTest, Core Bluetooth, MapKit Core Location, Location Kit EventKit, Social FrameworkTextKit, RealmUIKit, UI Dynamics, SDWebImage, Kingfisher, Alamofire, AFNetworking

Version Control Tools: Git and SVN

Desktop Software: Proficient in Microsoft Office Word, Excel, PowerPoint, & Access

Project Tools: JIRA, Confluence, Slack, Trello

Version Control: Git, GitHub, SourceTree, BitBucket, Tower

Continuous Integration: Jenkins, Hudson, Travis

PROFESSIONAL EXPERIENCE:

Confidential, Los Angeles, CA

Senior iOS Engineer

Responsibilities:

• Worked with Realm to store information
• Constructed responsive frameworks with RxSwift
• Implemented teh foundation for SwiftLint and teh .yml file it uses for both local Xcode as well as on teh CI pipeline.
• Alleviated race conditions in teh app by using dispatch groups.
• Lead 2 engineers to complete UI bug fixes.
• Created unit test cases for a several parts of teh application.
• Worked at fixing teh special offers dat we offer to teh users.
• Implemented Address Verification Services to our user registration.
• Led discussions on teh project progress in team retros.
• Addressed comments left on pull requests from lead and principal engineers.
• Worked with backend team to alleviate network issues and optimize slow network calls.
• Worked on user interface work throughout teh app.
• Agile process, with daily stand ups, 1-2 week sprints, and 2-week release cycle.
• Gave presentations on work me have done whole fielding questions.
• Gave information and context on problems/issues dat me have worked on.
• Onboarded new engineers by walking through teh SSH key process.
• Addressed issues dat arose from teh team me was leading and fixed them.
• Refactored large sections of outdated code.
• Review pull requests to conform to SOLID principals.
• Managed RunTools on several pull requests to address styling and linting issues.
• Delegated work dat needed other attention while providing in depth KTs.
• Use Firebase to analyze teh application.
• Performed Paired programming sessions with all members of teh team.
• Tested teh project on several devices and simulators.

Confidential, Atlanta, GA

Senior iOS Developer

Responsibilities:

• Worked on refactoring code to Swift 4
• Imported correct assets to be used on a Lexus head unit, such as teh background image of teh current street label.
• Refactored teh Search Results View Controller from MVC to MVV mobile app architecture.
• Split teh view controller even further by separating teh Full-Screen Logic to Reduced-Mode Logic.
• Tested a cross-border feature which checks if a requested route will result in a border crossing and alerts teh user.
• Replaced UISearchDisplayController related code with teh new UISearchController API
• Merged teh cross border feature into master.
• Used BitBucket for source control and integrated with SourceTree as part of app transition.
• Replaced Contacts related code with teh new CNContactStore API.
• Mentored team on method of testing teh Search View Controller to assure there were no big regressions.
• Worked on bug fixing and improving application performance, also tested on various Devices for UI
• Worked on Continuous Integration.
• Worked on implementing several design patterns like Singleton, designed MVVM pattern with Data model classes and several Categories were made to teh existing classes.
• Worked on adding localization to teh app to handle a plethora of different languages.
• Map View implementation using teh MapKit and Core Location Frameworks.
• MapKit, CoreLocation and MKAnnotations used to make UI tweaks on teh map view and enhance functionality
• Added a new 'Nearby' function to teh app using Mapkit, which helped locate nearby locations.

Confidential, Boston, MA iOS Application Developer

Responsibilities:

• Used BitBucket for source control and integrated with SourceTree as part of app transition.
• Mentored team on method of testing teh Search View Controller to assure there were no big regressions. iOS code review and mentored junior developers on iOS best practices.
• Xcode was teh IDE with coding in Swift and RxSwift with RxCocoa to manage third-party frameworks and libraries.
• Created Notifications module dat resurfaces notification messages through APN's from a database connected on a secure socket.
• Refactored adapter classes from JSONSerialization to Codable.
• Adopted Swift 4’s new changes throughout codebase during migration, including usage of Codable, String collections and various other API changes.

Confidential, Seattle, WA iOS Mobile App Developer

Responsibilities:

• Followed continuous integration and test-driven development (TDD) principals in a strict Agile/Scrum environment.
• Imported and integrated 3rd party libraries through CocoaPods.
• Worked with MapKit, CoreLocation and MKAnnotation to make UI tweaks on teh map view and enhance functionality to get teh latitude and longitude co-ordinates.
• Worked with Core Data to prepopulate UITextfields with persisted data received in prior web service calls.
• Used Entity Framework to design conceptual data access layer from relational database to get teh data from teh database.
• Implemented push notifications by creating APNS s and displayed all teh notices in one location in Notices Tab and also handled push notifications TEMPeffectively with server for integration.
• Used SDWebImage for image caching and downloading.
• Improved data management by refactoring iOS legacy code to reduce race conditions and memory access issues leading to crashes.
• Third-party tools included Firebase, Crashlytics, DeviceKit, and GRDB. iOS development team size ranged from 3 to 6 developers.
• Major contributions would be in completing backlog items and fixing priority crash reports.
• Worked with web/backend team to implement Single Sign-On in multiple apps.
• Used Crashlytics for testing and identifying cash issues.
• Worked with NSOperations to consume RESTful web services.

Confidential, San Francisco, CA iOS Developer

Responsibilities:

• Used Swift primarily with some objective-C and bridging headers to manage backward compatibility.
• Implemented push notifications, so dat users could get updates on balances.
• Performed a security audit, to make sure dat teh user’s information is secure, using pinning and other techniques.
• Updated UI elements as instructed by our UI/UX team, using Xib files along with some programmatic implementations.
• Used UserDefaults to store user’s app ps, while making sure to keep rmation out of there for security reasons.
• Used iOS charts to display budget information in meaningful ways to teh user
• Developed entirely in an Agile process, utilizing daily standups, using sprint planning, retrospectives, and JIRA.
• Worked in a team of 4 iOS developers, and communicated regularly with teh UI/UX team
• Tracked code using Git with Jenkins CI for continuous integration.
• Participated in code reviews and followed Test-Driven Development (TDD) methodology.

Confidential, New York, NY

Junior Mobile App Developer

Responsibilities:

• Worked as part of iOS development team comprised of 4 developers, 1 UX designer and 1 product owner.
• Used Xcode IDE and coded in Objective-C and Swift, transitioning this iOS mobile app code base from Objective-C to Swift.
• Refactored legacy Objective-C code and add new coding using Swift.
• AVFoundation was used to handle audio play back and video streaming.
• Used NSCache to enable caching workflow for images to reduce loading time from teh initial launch of app onwards.
• Adapted Core Animation and CALayer to crop and animate images over videos.
• Used Restkit library to make connections to server, and handle autantication challenges.
• Connection to web service was achieved using GCD. Delegate methods implemented to handle reception of response, data, error.
• Analyzed and optimized teh UI and teh backend interface code for efficiency and performance.
• Profiled teh application extensively using Instruments to improve performance throughout multiple sprints.
• Tested system and application performance limits and characteristics to optimize iOS app performance.