SUMMARY:

• 9 years of experience in Software Engineering
• 5 years of experience iOS Mobile App Development
• 5 published Apps in the App Store
• Experience with Swift, Objective - C, Xcode, different iOS versions, debugging tools, memory management, multi-threading techniques, UI design.
• Extensive experience consuming RESTful web services through JSON and APIs to connect to back-end systems using Firebase, AlamoFire, and AFNetworking, etc.
• Experience in iOS mobile application and software development lifecycle from design to deployment.
• Participates in peer code review, mentoring junior developers and pair programming.
• Expert knowledge in using Cocoa Touch, CocoaPods, and third-party frameworks.
• Experienced in architecture and implementation of native iOS mobile apps in various industries.
• Experience with iOS frameworks such as Core Data, Core Animation, Core Graphics and Core Text.
• Experienced with Agile/Scrum project team management and with development environments using Xcode, Git, SVN SourceTree JIRA, Kanban, and Atlassian tools in development environments.
• Use of XCTest to write and test with unit test and Test Flight for beta testing with a test user group.
• Adept at working in iOS mobile app development environments using source control, continuous integration and test-driven development along with code reviews and unit testing, and functional/scenario testing to achieve a quality product.
• Experience with architectural patterns in iOS such as MVC, MVP, MVVM, along with expert use of various design patterns (Abstracts Factory, Builder).
• Use of Auto Layout with Constraints, XIBs, Interface Builder, Storyboards for implementing user interfaces (UI) following UX design schematics.
• Experience implementing layouts that handle phone and tablet resolutions and adapt to orientation easily and accurately.
• Experience with iOS performance profilers such as instruments
• Advanced knowledge of mobile UX/UI relating to Apple Human Interface Guidelines (HIG) for front-end design and implementation as well as integration.
• Design and development of high quality, scalable and efficient solutions utilizing Reactive-X (RxSwift, RxCocoa) for modular and responsive code.
• Experienced in gathering requirements on project needs from various stakeholders and in working with cross-functional team members.

TECHNICAL SKILLS:

Programming: Swift, Objective-C, C, C++, C#, C++, JAVA, JavaScript, CSS3, HTML5, SQL

Database: SQL, SQLite, Core Data, Firebase, Realm

Web Services: REST, SOAP, XML, JSON, Reachability, NSURLSession, URLSession, NSJSONSerialization, NSXMLSerialization iOS Services: Apple Push Notification (APNS), NSUserDefaults, NSNotificationCenter, NSOperationQueue, Cocoa Pods, Cocoa Touch, Carthage. iOS Frameworks: AVFoundation, Core Graphics, Core Bluetooth, Core Text, MapKit

ThirdParty Frameworks: AF Networking, AlamoFire, RxSwift, RxCocoa, Realm, SwiftyJSON, Charts, Kiwi-

UI Design and Implementation: Visual Paradigm, Auto Layout, Storyboard, Xib, Interface Builder, Size Classes, UIKit, Adaptive layout, UML

Architecture: MVC, MVVM

Operating Systems: iOS, Linux, Windows

Mobile Map Tools: Core Location, MapKit, Location Kit, Google Maps API

Testing: TestFlight, Jenkins. Test Driven Development (TDD), Instruments

Development Tools: Visual Studio, Xcode

Project Management: Agile/Scrum, JIRA

Applications: Microsoft Office Suite, 3DS Max, Maya, Adobe Photoshop, GIMP

PROFESSIONAL EXPERIENCE:

Confidential, Santa Monica, CA

Senior iOS Mobile App Developer & Team Lead

Responsibilities:

• Architected clean navigation for ease of use, collaborating with UX designers and managing the development team on implementation.
• Created an Apple Watch module, in addition to iPad and iPhone.
• Implemented powerful and efficient search, filter and favorites capabilities.
• Performed thorough unit tests using XCTest, to ensure conformance of hundreds of individual unit tests before each release.
• Leveraged Git for version control with private Git server with Jenkins for continuous integration.
• Ensured UI optimized for iPhone and iPad screen sizes using size classes
• Implemented several UI layouts based on UX team specifications to the detail using Storyboards with size classes, and AutoLayout constraints for graceful orientation handling.
• Invoked RESTful web calls using proprietary API and parsed JSON responses using NSJSONSerialization.
• Used multithreading techniques for downloading images on background threads with GCD as to not lock up the UI.
• Integrated with back-end services using AlamoFire to consume RESTful services.
• Managed streaming media and audio playback with AVFoundation.
• Resolved numerous bugs and crash scenarios using NSLogs, Breakpoints, Instruments and LLDB statements, Crashlytics reports, and Instruments as per QA feedback.
• Profiled the application extensively using Instruments to improve performance
• Supervised a team of 8 iOS developers; collaborated closely with back-end, front-end, and QA team
• Worked on development team with 5 other team leads including product, front-end, back-end, UX design team, and project manager. iOS development was managed using an Agile/Scrum methodology with code delivered in 2-week sprints
• Implemented responsive iOS native applications using Swift and the latest technologies to provide users with a smooth and intuitive user experience.
• Responsible for managing and tracking the stories, tasks, issues, and backlog using JIRA.

Technologies: Swift, Xcode, Storyboard, Xib, Interface Builder, Size Classes, UIKit, Xcode, Instruments, NSLogs, Agile SCRUM, UI, UX, Core Data, GCD, NSOperations, SQLite, REST, JSON, XML, SOAP, View Controllers, UI State Preservation, Reachability

Confidential, Menlo Park, CA

Senior iOS Mobile App Developer

Responsibilities:

• Developed this iOS mobile app in Swift using Xcode with native and third-party frameworks.
• Fixed bugs and improved performance until the release of the new iOS mobile app
• Improved background sync, by uncovering bugs, which syncs data with the desktop app.
• Added the ability to record input quickly using 3D touch.
• Resolved memory leaks by using the Allocations and Memory Leaks instruments, and narrowing down where retain cycles were being created.
• Added ability to login with single sign-on using the API.
• Created interfaces as drawn up by the UI/UX team, by using Interface Builder and Auto Layout with Constraints.
• Used multiple storyboards to mitigate Git merge issues as we used Git for version control with Jenkins for continuous integration.
• The iOS mobile app development team followed an Agile /Scrum development methodology with 2-week sprints and daily scrums.
• Administered stories and tasks in JIRA, assigning tasks and managing backlog.
• Facilitated Sprint planning meetings working closely with the Product Manager to prioritize tasks.
• Used Git for source control, pull requests and creating branches
• Experience with Apple Approvals and Distribution Process.
• Used CoreData for local data persistence.
• Created proof-of-concept prototype applications for demonstration and evaluation purposes.
• Backend communications parsed with NSJSONSerialization and placed into model objects.
• Integrated RESTful APIs to provide external services to the application.
• Installed frameworks and tracked dependencies using CocoaPods.
• Resolved various bugs and issues throughout the app using NSLog statements, Breakpoints, LLDB statements, and Instruments as per QA feedback.
• Code base stored in a Git repository with Jenkins for continuous integration and testing.

Technologies: Swift, Storyboard, Xib, Interface Builder, Size Classes, UIKit, Xcode, NSURLSession, Instruments, NSLogs, Agile SCRUM, UI, UX, Core Data, GCD, LLDB Statements, JIRA, GIT, MVVM, POC, Prototype, NSOperations, SQLite, REST, JSON, XML, SOAP, View Controllers, UI Sate Preservation, Reachability

Confidential, Philadelphia, PA

Senior iOS Mobile App Developer

Responsibilities:

• Ensured UI optimized for iPhone and iPad screen sizes using size classes.
• Refactored several UI layouts based off wireframes to heighten the user experience.
• Invoked RESTful web calls using proprietary API and parsed JSON responses using NSJSONSerialization.
• Resolved numerous bugs and crash scenarios using NSLogs, Breakpoints, Instruments and LLDB statements.
• Implemented redesign of UI using Storyboards with Auto Layout and Interface Builder.
• Utilized size classes and programmatic adaptations for graceful orientation handling
• Started adding code in Swift towards the end of the project, and transitioned to MVVM architectural pattern, and used various design patterns (such as Singleton, Facade, and Observer).
• Worked on development team with 5 other iOS developers and 4 back-end developers.
• Manage GitHub repository creating branches doing merge, pull request and releases.
• Worked in an Agile environment, with daily scrum, two-week sprints, sprint planning, and retrospectives.
• Assisted with preparing the app updates for submission to the Apple iOS app store.
• Created proof-of-concept prototype applications for demonstration and evaluation purposes.
• Backend communications parsed with NSJSONSerialization and placed into model objects.
• Integrated RESTful APIs to provide external services to the application.
• Installed frameworks and tracked dependencies using CocoaPods.
• Migrated over to using storyboards from XIBs, and Segues for navigation instead of handling it programmatically.
• Setup Auto Layout constraints with size classes in conjunction with storyboard migration to smoothly handle various device sizes and orientations.
• Used AVFoundation to handle audio playback and video streaming.
• Involved in migration and redesign process from iOS6 to iOS7.
• Resolved various bugs and issues throughout the app using NSLog statements, Breakpoints, LLDB statements, and Instruments as per QA feedback.
• Code base stored in a Git repository with Jenkins for continuous integration and testing.
• Project managed using SCRUM/Agile methodologies.

Technologies: Objective-C, Storyboards, Xib, Interface Builder, Size Classes, UIKit, Xcode, AFNetworking, Instruments, NSLogs, Agile SCRUM, UI, UX, Core Data, GCD, CocoaPods, NSJSONSerialization, RESTful API, NSOperations, SQLite, REST, JSON, XML, SOAP, View Controllers, UI State Preservation, Reachability, Agile/Scrum.

Confidential, Atlanta, GA

iOS Mobile App Developer

Responsibilities:

• Implemented native iOS solutions that communicate with RESTful web services as fully functional prototypes for offshore development teams using Objective-C.
• Worked closely with the design team to implemented prototype and proof-of-concept apps based on design specs provided via Sketch and Photoshop for demonstration and evaluation purposes.
• To ensure code quality, I wrote the unit test cases using the XCTest framework to be used by the testing team which I oversaw.
• Worked on a development team using Agile/Scrum methodology, with daily Scrums calls and three-week Sprints.
• Uses Atlassian software (JIRA, Stash, and Confluence) for organizing the project.
• Involved in getting requirements from the product team and analyzed the feasibility with the existing design.
• Involved in the iOS project plan and effort estimations leading to successful product delivery.
• Facilitated the iOS app approval process in the Apple iOS App store and publishing of the app to the app store.
• Maintained communications with the product manager and kept overall project manager (iOS, Android, Web) apprised of status of all development and testing tasks.
• Designed and implemented custom interactive controls using native iOS to solve complex interface usability issues.
• Designed and implemented native iOS solutions that utilize REST web services for integration with back-end processes.
• Designed custom iOS user interface classes to be used in the application.
• Coordinated with QA testers for end-to-end unit testing and post-production testing.
• Collaborated with product and engineering team members to define and develop new product concepts.
• Implemented Core Location framework, along with MapKit to enable GPS search of nearby locations, Map display and driving directions.
• Updated payment integration services using PayPal and Stripe APIs.
• Administered Git repositories for iOS enterprise code.
• Worked in conjunction with design team on the iteration of the UI/UX design.
• UI/UX refactored to coincide with latest design philosophy changes using XIBs.
• Agile Scrum process used by the iOS mobile app development team with daily scrums and bi-weekly sprints.
• Responsible for enhancing iOS modules including different interfaces.
• Implemented analytics tools used to track user transaction statistics within the application.
• Implemented CoreData for persistent storage of user data such as account info, order history, and orders in progress.
• The app was developed in Objective-C using Xcode.
• Identified and solved for any bugs reported in the testing stage of the project using a combination of Breakpoints, LLDB statements, NSLog statements, and Instruments for performance monitoring.
• Implemented Test cases in XCTest with seventy percent coverage of the project using OCMock framework for mocking payment transactions.

Technologies: Objective-C, Xcode, iOS SDK, Storyboard, Xib, Interface Builder, Size Classes, UIKit, Xcode, NSURLSession, Instruments, NSLogs, Agile SCRUM, UI, UX, Core Data, GCD, OCMock, NSOperations, SQLite, REST, JSON, XML, SOAP, View Controllers, Reachability

Confidential, Lake Oswego, OR

Mobile App Developer

Responsibilities:

• Implemented the iOS mobile application in Objective-C using the Xcode IDE with native and third-party frameworks.
• Utilized the C ore Location framework, MapKit and Google Maps API.
• Implemented UI/UX design programmatically in Xcode Interface Builder with use of Xibs.
• Constructed new UIs from wireframes from Lead Architect.
• Enabled social sharing capabilities by implementing the API.
• Imported XML formatted recipes from cooking sites and blogs utilizing NSXMLParser.
• Project development team comprised of 3 other iOS developers and 3 back-end developers.
• Project matriculated using Agile/SCRUM methodology; code delivered in 3-week sprints.
• Code housed in Git repository.
• Version control functioning handled by SourceTree application.
• Resolved several bugs using NSLogs, Breakpoints, Instruments, and LLDB statements.
• Developed custom Reachability class that determined if device has proper network connection via its home network.
• Constructed and manipulated all application views in Storyboard, adding Auto Layout constraints for graceful orientation- handling.
• Provided the design of several UIViewControllers within the application flow, constructed with custom UIKit elements to provide a unique user experience.
• Resolved numerous bugs throughout development as they appeared utilizing NSLog statements, Breakpoints, LLDB statements, Instruments, etc.
• Regularly performed code reviews to ensure efficiency, readability, and maintainability.
• Recommended and executed plans to improve development tools and processes.
• Performed to complete unit testing, integration testing and regression testing the application.
• All web communications are performed in background threads to enhance performance and the user experience.
• Invoked RESTful web services using AFNetworking and parsed JSON responses using NSJSONSerialization.

Technologies Used: iOS 5 SDK, Objective-C, Xcode, Xcode, Storyboard, Constraints, RESTful, JSON parsing, API, UIViewControllers, NSLog, Breakpoints, LLDB, Instruments, Agile, SCRUM, Subversion, Custom class, Confidential API, Agile, Scrum, Sprints, Scrums, SQLite.

Confidential

Information Systems Technician

Responsibilities:

• Identified and resolved customer technical issues on an enterprise level.
• Provided technical training to co-workers and new staff members.
• Managed and maintained Active Directory sites and domains.
• Managed and maintained Cisco routers and switches via Putty over SSH.
• Resolved major, critical issues and bugs as reported, applying hotfixes as required; accurately reproduced and resolved issues prioritized by severity
• Invoked RESTful web calls using proprietary API and parsed JSON responses using.
• Participated in the full software development life cycle, contributing to architectural de
• Implemented all player abilities, player weapon/gadget use, win/loss conditions.
• Programmed Melee and Ranged A.I. enemies with patrolling waypoint logic.
• Built all U.I. elements, menus, in-game player HUD, enemy detection radar system.
• Collected all game assets and constructed engaging player-focused stealth action levels.
• Shattered Realms (PC) | 2D Platformer with Character Switching | Unity 5 | 3-Man Team Project
• Created enemy and item respawn system.
• Implemented 2 out of 3 character ability sets and built their animation controllers.
• Programmed all enemy and boss character A.I. logic.
• Responsible for integration of other team members work and Git source control repository.
• Built level select, main menus, and in-game player HUD.
• Integrated XAudio, DirectInput, TinyXML, ASSIMP functionality into the Game Engine.
• Built a 3D Renderer supporting Forward, Deferred, and Forward+ rendering techniques. A Forward+ renderer allowed for 100's of lights in a scene without the typical frame-rate drop.