SUMMARY:

• 5 years of experience in iOS mobile application development in the USA
• Strong with Swift programming through Swift 4 as well as Objective - C using XCode and Interface Builder.
• Knowledgeable of the latest XCode / iOS versions, and beta builds, as wells as trends in mobile.
• Knowledgeable of Reactive programming using RxSwift, RxCocoa, RxBluetoothKit, etc.
• Proficient in consuming webservices (REST, XML, JSON, SOAP based. Native experience with NSURLConnection, NSURLSession. 3rd party experience with RestKit, AlamoFire, AFNetworking, NSJSONSerialization, NSXMLSerialization, Reachability)
• UI/UX following Apple’s skeumorphic minimalistic design and Confidential .
• UI implementation using CoreGraphics, CoreAnimation, UIDynamics, IViewAnimateWithDuration, XIBS, NIBS, and Storyboards.
• Stored data persistently (Core Data, SQLite, NSCoding (archiving/unarchiving), and PLists; Documents/Temporary directory, NSUserDefaults, Keychain, as well as cloud based with iCloud
• Avid tester seeking to always have high code base test coverage percentages. For business logic of application XCT framework utilized for verification of model logic of an app
• Proficient with processing crash logs / reports, using the debug console, breakpoints, instruments, etc.
• Good with application architecture (MVVM, MVP, MVC) and general design patterns (Delegation/Protocols, Observer, Singleton, Block, etc.)
• Worked with both GIT via command line and GUI tools like Tower, GitHub.
• Passionate developer always looking to learn and expand his skill set in the field adapting and the ability to learn are the greatest assets.
• Expertise with processing audio and video with Core Audio, Audio Toolbox, Media Player and use of various codecs, file formats, and media frameworks; as well as programmatic custom equalizers.
• Good with computer science problem resolution using best approaches, diagramming, acknowledgement of time complexity gains, etc.
• Up to date with latest Apple news, technologies, trends and development.
• Strong knowledge in all phases of Software Development Life Cycle (SDLC) process, which includes requirement analysis, designing, implementing, debugging, testing, fixing and maintaining applications.
• Multi-threading using both Grand Central Dispatch (GCD) and NSOperationQueue

TECHNICAL SKILLS:

Languages: Swift, Objective-C, C/C++, Python Assembly, Unix, MatLab, Verilog

Databases: SQLServer, SQLite, MySQL, Mongo DB

Web Services: REST, SOAP, (JSON/XML)

IDEs: XCode, Visual Studio

Architecture Patterns: MVVM, MVP, MVC, VIPER

Frameworks: CocoaPods, CocoaTouch, AFNetworkingAVFoundation, EventKit, CloudKit, MapKit, LocationKit Reachability

Project: JIRA, Confluence, KanBan, Redmine, Basecamp Slack

Tools: Instruments, Analyzer

Version Control: SVN, GIT, SourceTree, Tower, Command Line / Terminal, GitHub

Operation Systems: iOS, Windows, OS X, Linux

Methodologies: PSP, SCRUM/AGILE, TDD

Testing: Unit Testing, XCTest, Automated Testing

Continuous Integration: Jenkins, Travis, Hudson TestFlight

Persistence: Core Data, Keychain, NSCoding / NSKeyedArchiver, SQLite, PList, NS User Defaults

WORK EXPERIENCE:

Senior MOBILE developer

Confidential, Playa Vista, CA

Responsibilities:

• Designed native iOS application flow using Storyboard, and user gestures in Xcode Interface Builder. Responsible for requirement gathering, having a thorough understanding of the use case and architecting the application in keeping with functional and marketing specifications.
• Collaborated with stakeholders, SMEs and engineers, and ensured specific back-end communications functionality.
• Worked in Swift 4 to develop the app on MVVM architecture for streamlined and efficient modular design.
• Employed a basis in Reactive-X using Rx Swift, RxCocoa and Wi-Fi integration for the smart functions.
• Developed critical tools for this project like customized navigation bar, page control and scroll view.
• Pre-fetching data for different views for smooth screen transitioning.
• Verify system logic by overseeing the preparation of test data, testing and debugging during QA cycles
• Used the AFNetworking for asynchronous communication with devices and backend systems.
• Used class to parse the JSON and to extract the data required.
• Worked on implementing Firebase Framework, Core Data Framework, UI Kit Framework, and AFNetworking.
• Used Atlassian tools such as JIRA and Applause to manage and keep track on progress of project.
• Experience collaborating with senior backend and senior mobile developers in an Agile Methodology with little supervision.
• Publishing the IOS Mobile application on App store and maintaining release standards.
• Created custom UI Views, custom Table Views, custom Buttons and custom Table View Cell for user interface.
• Created Notifications module that resurfaces notification messages through APN's from a database connected on a secure socket.
• Updated online user ID and password fields to allow special characters to be used.
• Created modules for switching the application in between and coming back to the present session.
• Implemented security ciphers and Keychain user logon for ensuring safe implementation in homes.
• Created modules for account section, energy and usage tracking and setting preferences.

Senior iOS application developer

Confidential, Southfield, MI

Responsibilities:

• Worked with SMEs and stakeholders to advise on iOS app design and recommended technologies.
• Developed the iOS application in Swift 3 using Xcode, Interface Builder and Storyboards.
• Designed and Implemented UIs as per the specifications: UINavigation, UIButton, UITableView etc.
• Implemented Storyboards and auto-layout throughout the app.
• Parsed data and displayed them in cells by implementation of JSON web services
• Designed and built flexible UI using Auto-Layout with complex interactions, animations, drop-downs and expandable input areas.
• Worked hands on with UIKit Framework for the application.
• Worked extensively on table view controller and created customized table where required.
• Was part of the complete design of the flow for the application with UI components and controllers to be used for Category View.
• Performed web services deployment and testing on devices.
• Was responsible for Service Integration Development and end to end testing.
• Interacted with Backend team to display the correct data format in devices.
• Involved in Integration of web-based content made with HTML5 on a Native app using UIWebView
• Formatted the Data as per Business rule to display in UI.
• Worked closely within a cross functional team of testers and developers.
• Performed Code review, Unit & Integration Testing oversaw debugging issues using (Charles Proxy/Firebug).
• Performed thorough analysis and debugging in X-Code.
• Collaborate closely with the product and design teams to enhance App experience.
• Involved in requirement analysis, designing and developing the application
• Implemented JSON to get display the items on the respective views
• Implemented Custom Table View and Worked on push Notification for Richpush message
• Did developer test and fixed bugs to meet client specifications and standards
• Designed and engineered UI components within agile environment.
• Worked on GCD to build a responsive UI and implemented background threads.

Senior iOS application developer

Confidential, Houston, TX

Responsibilities:

• App UI developed using storyboards with auto layout constraints and size classes utilized to handle all possible screen sizes; priorities were used to ensure no conflicts arose between constraints
• Accounts framework and Keychains integrated to allow users to login and manage their account information
• Developed various UI elements used throughout the app
• Worked closely with product team to determine requirements and business logic
• Worked closely with TDD, developing unit tests to validate functionality and business logic as per determined requirements documentation
• Created POCs working with Swift for potential new features and functionality
• Invoked RESTful web services to pull down the latest information, such as coupons, popular pizza configurations, previous orders, and for sending out pizza order requests; Confidential Serialization used to parse service JSON responses
• JIRA was used for tracking and assigning of bugs
• Continuous integration handled with Jenkins

Confidential, San Diego, CA

Responsibilities:

• Developed and updated various pages and UI elements used throughout the app as per design team specifications and wireframes
• Tasked with migrating over to using storyboards and segues from programmatic navigation and XIBs
• Worked with Localization to allow users to view content in a variety of languages
• NSOperations were used for pulling the latest information on quakes from various services with NSJSONSerialization used to parse said service JSON responses
• NSCache utilized to mitigate loss of internet connection
• MapKit and MKAnnotations use for tracking quake information
• Integrated with Social Frameworks to post updates to user social media
• Completed extending testing and bug fixing using NSLog statements, Breakpoints, Confidential statements, and Instruments as per QA feedback
• Implemented Core Audio and Core Location, AlamoFire, SwiftyJason, MapKit to integrate and display weather events.
• Jenkins used for continuous integration and testing

Confidential, New York, NY

Responsibilities:

• Main role focused on refactoring UI with XIBs and AutoLayout to work with new iOS 7 design principles
• Grand Central Dispatch utilized to get news articles; XML data would be parsed with NSXML parser
• Utilized Media Player framework with Core Audio, and KVO to stream video content
• Developed various UI elements used throughout the app
• Involved in migration process to ARC memory management from MRR
• Resolved numerous bugs utilizing NSLog statements, Breakpoints, Confidential and Instruments as per QA team feedback
• Performance tuning of the application was done with instruments to ensure no leaks, zombies, or other adverse conditions existed in the app
• Git used for housing source code and keeping version history with SourceTree GUI