SUMMARY:

• 6 years of iOS mobile apps development experience, starting with iOS4; 5 published apps in the App Store and 3 enterprise apps
• Proficient in understanding customer and business needs, as well as server/hosting requirements, data modeling, business logic and UX/UI design
• Highly - experienced with design patterns such as MVC, MVVM, Delegation, Singleton, Categories, Notification, KVC, Blocks
• Increased security practices.
• Valuable experience in the entire software development life-cycle including requirements gathering, design, coding, testing, debugging and maintenance
• Strong working knowledge of Xcode, Cocoa touch, Objective-C, and iOS5 through iOS10
• Experienced persisting data on device using SQLite, CoreData, Realm and NSUserDefaults
• Experience integrating with multiple RESTful and SOAP web services, parsing JSON and XML, responses respectively
• Constructed and implemented UI designs using Storyboards, XIB files and programmatic UI
• Performed functional Unit Tests using the XCTest framework
• Solid understanding and use of various iOS frameworks such as: UIKit, MapKit, Core Location, AVFoundation, Core Audio, Quartz Core, Security, Data Protection, SSZipArchive, Fabric/Crashlytics, Urban Airship, AFNetworking, Social Framework, Event Kit
• Extensive use of Grand Central Dispatch (GCD) to perform tasks on different threads, allowing for a more lag free user experience
• Experienced developing with Watch Kit and watches
• Working experience in ARC, as well as the older, MRR for managing memory
• Experience working with Swift 1 through Swift 3
• Enthusiastic and willing to do whatever it takes to make sure tasks are completed on time and to the highest standard

TECHNICAL SKILLS:

Languages: Swift, Objective-C

Databases: SQLite, Core Data, Realm

Frameworks: Cocoa Touch, Core Location, Foundational, UIKit, Core Graphics, MapKit, XCTest, Google API, Facebook API, Event Kit, Watch Kit, Fabric/Crashlytics, SSZipArchive, Security Framework, Urban Airship, Fabric

Web Services: RESTful, SOAP, JSON, XML

IDEs: Xcode, Eclipse

Libraries: AFNetworking, Reachability, Red Laser, CocoaLumberJack

Version Control: GIT, SVN, SourceTree, Tower

Issue Tracking: JIRA

Methodologies: Agile, MVC, TDD, SCRUM, Waterfall-hybrid, Categories, Blocks, Continuous Integration, Delegation, Singleton, KVC, Notification, PUSH Notification, Localization

Analysis and Modeling: UML

Operating Systems: iOS4-iOS10, OS X, Linux, Windows.

Tools: Storyboards, Interface Builder, Separations, NSXMLParser, NSJSONSerialization, GCD, UIRefreshControl, NSURLCache, Keychain, Instruments - Allocations, Leaks, Zombies, LLDB, CocoaPods, Flinto, Sketch

Data Persistence: SQLite, Realm, Core Data, NSUserDefaults

PROFESSIONAL EXPERIENCE:

Confidential, Austin, TX

Senior iOS Engineer

Responsibilities:

• Finished the first app from design to working production line in a week.
• Responsible for project planning, architecture and design, implementation, testing, approval and deployment.
• Rearchitected the external facing app to be easier to extend.
• Migrated the code-base from Objective-C to Swift3 to keep it modern and sleek.
• Worked with a Swift-Objective-C hybrid code-base.
• Used AudioKit to play, record and email audio files that are used to run analysis on the server.
• Used Flinto to create and design micro-interactions to demonstrate prototypes before being built.
• Redesigned settings screen to what was designed with new reusable UI/UX components.
• Resolved critical issues causing an app to crash.
• Resolved critical issue involving network traffic and traffic through the web services. Troubleshooting and root cause analysis revealed a problem with RESTKit limits with handling of network traffic and restful web traffic
• Balanced priorities and scope creep to ensure timely deliveries and no missed dates
• Implemented sharing via Emails, Dropbox, Airdrop and more for large Audio Files
• Utilized GCD to keep the app running smoothly.
• Project used Agile methodology in 2 week sprints that resulted in quick turnarounds with bi-daily scrums.
• Implemented use of Android Studio versus Eclipse for development work.
• Decreased product development cycle times.
• Redesigned and engineered mobile agility process with high use of current technology, systems and existing organization assets.
• Worked with Objective-c and Swift hybrid code bases; practical experience working with bridging header files and minor issues with a dual language code base
• All code for the mobile and server applications were written using strict object-oriented design techniques.
• Refactored execution management to be handled in the background without locking up the main thread and UI using GCD; NSOperations also leveraged for more complicated concurrency concerns

Technologies: Swift 3.0, Objective-C, AudioKit, CallKit, Encrypted Core Data, Core Data, RESTKit, Flinto, Sketch, Storyboards, Singletons, Managers, Stateful programming, Push Notifications, Localization

Confidential, MN

Sr. iOS Developer

Responsibilities:

• Added a toolbar to improve user experience in dismissing the keyboard on iPhone
• Fixed a custom calendar implementation to work more predictable and fixed long standing issues
• Resolved crash scenarios that involved the calendar, when switching to a new calendar view
• Rebranded the app and changed assets, including updating the interface to be cleaner and use the newly defined colors
• Created a dynamically sized UITableViewCell to be able to fit all the information that needed to be shown for the cell
• Ensured sure that the apps' security requirements and directions by the security team were strongly followed
• Updated AFNetworking from version 1.3 to 3.1, to replace the now deprecated NSURLConnection with NSURLSession
• Delivered code continuously via 2 week sprints and daily deliverables, with updates to Jenkins as well as managing it
• Updated old scripts and jobs to keep the app as modern as possible
• Created POCs to move the app to a schema based deployment
• Created and maintained custom CocoaPods libraries, to promote code reuse throughout the organization
• Talked about best practices with other developers in the organizations
• Code stored in Bitbucket Repository
• Profiled the app using instruments to see performance leaks, memory optimizations and battery use
• Resolved long standing crashes and weird behavior that was intermittent in the app
• Rearchitected the app in several places to improve the readability, comments and stability to fit a more MVC pattern

Confidential, Austin, TX

Sr. iOS Developer

Responsibilities:

• Initial task was to complete login UI-refactoring based off wireframes from lead architect, using Storyboards, size classes and AutoLayout constraints
• Redesigned shopping list ViewController contents, including custom UITableViewCells
• Resolved crash scenario for iOS7.1.2 users when tapping shopping list and other bugs with Breakpoints, LLDB statements and Zombies
• Implemented Google+ login for users by working with Google API
• Added video functionality within app using AVFoundation library
• Invoked RESTful web services using AFNetworking
• Parsed JSON responses using NSJSONSerialization into NSObjects
• Worked with CocoaPods dependencies for necessary 3rd party abilities
• Optimized store locator functionality and refactored corresponding UI of workflow using Storyboards
• Enhanced performance of app by profiling app using several Instruments
• Handled optimizations of application for compatibility with iOS9 standard calls
• Created POCs in Swift2.0 to prototype current app functionality for decisions on integration
• Project matriculated utilizing the Agile/SCRUM methodology
• Code delivered in 2 week sprints
• Project developed on a team of 3 other iOS developers and 3 backend developers
• Code stored in Git repository; SourceTree used for version control functions

Confidential, Confidential, CA iOS Developer

Responsibilities:

• Created Singleton for converting measurement values from US to Metric based off user’s selection
• Redesigned views using Storyboards for expanding user preferences and filters for optimized searching
• Implemented social sharing APIs like Facebook, Twitter, Pinterest, and Google for allowing user to share recipes to the desired social network
• Made RESTful web calls using NSURLSession and parsed response JSON using NSJSONSerialization
• Utilized GCD for lazy loading, multithreaded workflow to invoke web service request on background to not tie up the main thread
• Added implementation to registration workflow that allows a user to register via Facebook and Google+ social network logins
• Utilized iCloud API for syncing shopping list among other iOS devices
• Refactored code and thoroughly-tested app to ensure compatibility with iOS8 SDK
• Redesigned the home screen experience and other views using Storyboards and AutoLayout constraints
• Code stored in SVN repo
• Project governed by Agile/SCRUM methodology
• Resolved numerous bugs using NSLogs, Breakpoints, LLDB statements and Instruments

Confidential, Seattle, WA iOS Developer

Responsibilities:

• Fully refactored UI into flat, minimalistic standard of iOS7 using Storyboards and AutoLayout constraints
• Constructed new UIs from wireframes from Lead Architect
• Refactored RESTful requests from NSURLConnection to NSURLSession to be compatible with iOS7 new standard
• Parsed JSON responses using NSJSONSerialization
• Enabled social sharing capabilities by implementing the Facebook 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
• Debugged several bugs using NSLogs, Breakpoints, Instruments, and LLDB statements

Confidential, Bellevue, WA iOS Developer

Responsibilities:

• Map View implementation using the MapKit and Core Location Frameworks
• Web Services consumption on the iPhone to communicate with the MediaWiki API using the NSURLRequest and NSURLConnection objects natively; POC’s where made for using ASIHTTP
• Creating project and application architecture deliverables that are consistent with architecture principles, standards, methodologies, and best practices; namely allowing for maintainability and scalability
• Lead technical design sessions with the development teams, including the creation of class models, sequence diagrams, component models, etc., and detailed design specifications to ensuring that architecture standards are followed.
• XML Response parsing using the SAX NSXMLParser and NSXMLParserDelegate. JSON Response parsing using the SBJSON Framework.
• Data scrolling is achieved using UIScrollPane and UITextView
• Lead the technical analysis and evaluation of new technologies, vendors, products, and product enhancements with a strong point of view on end-user functionality and an eye for highly usable user interface design.
• Responsible for defining technical evaluation criteria for product and technology selection and determining technical approaches to ensure all architectural solutions result in a coherent systems design.
• Audio playback using the AVAudioPlayer from the AVFoundation Framework.
• This application was designed and implemented using iPhone SDK, Xcode, interface builder with XIB’s, objective-c and instruments for performance tuning/optimization