SUMMARY:

• 6 years of professional experience as a full - time iOS mobile developer.
• Mentored entry level iOS developers and led mobile development projects.
• Programmed both on Objective C and the multiple versions of Swift and migrated several code bases.
• Created MVC, MVVM and VIPER architectures.
• Advanced knowledge on Key Value Observing, Delegation, NS Notification, Categories, Extensions and Protocols.
• Consumed JSON and XML services with URLSession, Alamo Fire and AFNetworking.
• Advanced knowledge with GCD, NS Operation Queue and NS Threads.
• Skilled on third party framework management using Cocoapods and Carthage.
• Stored user information using SQLite, User Defaults, Core Data.
• Implemented authentication mechanisms using Touch ID, Keychain, OAuth 2 and implemented private token based libraries.
• Found bugs using Xcode breakpoints, prints and using the debugging terminal.
• Advanced knowledge on Manual Retain Release and Automatic Reference Counting.
• Built Interfaces using nib files, storyboards and programmatic classes.
• Created map interfaces using Core Location, Google Maps and Map Kit.
• Worked on projects that had continuous integration using Jenkins and Xcode server bots.
• Advanced knowledge on push notifications as well as silent push notifications.
• Released applications to the app store successfully and on test flight.
• Managed version control with Subversion, GitHub and Bitbucket.
• Implemented Firebase Analytics to measure app usage.
• Used a SCRUM Agile Framework, with 2 week sprints and ritual meetings.
• Made applications that used the Core Bluetooth library to handle peripherals.
• Handled media playback with HLS.
• Fluent both on Spanish and English.
• Managed tickets and stories using Jira and Trello.
• Coded under a test-driven development philosophy with XCTest.
• Estimated feature technical requirements in terms of human resources and time, worked very closely with the product owner.

TECHNICAL SKILLS:

• Protocol Oriented Programming
• SCRUM Programming
• Cocoapods
• Core Data
• Objective C
• Networking
• Touch ID
• Test Driven Development
• Location Management
• Swift

PROFESSIONAL EXPERIENCE:

Confidential, NYC, NY

Senior iOS Developer

Responsibilities:

• Developed with early versions of Swift, migrated to Swift 2, then 3 and started the migration to Swift 4.
• Used a tab bar controller to show all the different view controllers of the application.
• Implemented Crashlytics to analyze crash reports.
• Made use of gesture recognizers to detect special touch events and to synchronize them with running animations.
• Used constraints and auto layout to organize the view elements that are shown.
• Displayed information in table views with custom cells created with nib and custom subclasses.
• Created custom UI elements by sub classing UIKit classes.
• Worked on a test-driven development environment, every feature was released with a related test.
• Communicated effectively with the product owner to translate user cases into technical specifications.
• Leaded the iOS team into a successful launch and had a strong input on the technology roadmap of the project.
• Tracked user’s behavior using google analytics.
• Implemented Touch ID to handle local authentication.
• Created internal frameworks to extract reusable features of the application.
• Complied with secure coding standards and pen testing procedures.
• Worked on a scrum environment with 2 week sprints.
• Published application to the app store.
• Worked with continuous integration using Jenkins.
• Used Jira to understand which tickets and stories were pending.

Senior iOS Developer

Responsibilities:

• Prototype was developed on Objective C and then I migrated to the early version of Swift.
• Created UI using storyboards, nib files and programmatic classes.
• Used size classes and auto layout.
• Created a drawer menu using UI views, table views, constraints and animations.
• Worked on a scrum environment with 2 week sprints.
• Used bridging headers to connect the Objective C codebase with the Swift codebase.
• Used Alamofire to consume the Bank’s API.
• Used Keychain to safely store credentials.
• Used User Defaults to store non-sensitive user preferences.
• Made use of several animation blocks to enhance the overall user experience.
• Took advantage of the application lifecycle to understand when the application is suddenly closed.
• Used design patterns like Delegation, MVVM, Publisher Subscriber and Decorator.
• Published application to the app store.
• Worked with continuous integration using Jenkins.
• Made unit tests using XC Test.
• Used Jira to understand which tickets and stories were pending.

iOS Developer

Responsibilities:

• Developed on Objective C and used third party libraries using Carthage.
• Worked on a scrum environment with 2 week sprints.
• Created a tab bar controller to handle the user interaction.
• Made use of Map Kit and Core Location to gather and display the nearby agent’s locations.
• Created a drawer menu using animations, constraints and gesture recognizers.
• Made use of size classes to change the look and feel of the application multiple screen resolutions.
• Created frameworks to encapsulate re-usable features of the application.
• Made use of storyboards, navigation controllers and constraints.
• Used scroll views to show large views on relatively medium sized screens.
• Cached information using NSCache.
• Migrated NSURLConnection to NSURLSession.

iOS Developer

Responsibilities:

• Developed the application entirely on Objective C.
• Created Categories to extend the functionality of NS classes.
• Created custom UIButton subclasses to add custom behavior and appearance.
• Used NSURLConnection to consume the API endpoints.
• Created atomic properties to ensure thread safety.
• Created custom table view cells to display the team’s score information.
• Created segmented controllers to further filter information and display custom views.
• Worked on a scrum environment with 2 week sprints.
• Used a navigation controller to handle the view controller stack.
• Used a Façade design pattern with an MVC software architecture.