SUMMARY:

• Experienced and passionate professional with 7 + years of experience on the software development field. 6 of those as an iOS mobile developer and the latest 2 years working as a senior developer.
• Worked both on Swift and Objective C languages.
• Worked with architectural patterns like MVC and MVVM using best practices and ensuring modularity.
• Worked with design patterns like KVO, KVC, Delegation and Protocols, Notifications, Categories and Extensions to adhere to follow best development practices.
• Experience consuming web services (JSON and XML) with NSURLSession, URLConnection, URLSession, Alamofire and AFNetworking.
• Experience in multithreaded environments with GCD and NSOperation with serial and concurrent queues.
• Experience with third party libraries using either Cocoapods or Carthage.
• Experience on data persistence with Core Data, SQLite, User Defaults, File System, Plist files.
• Implemented Authentication with Keychain, Touch ID and Oauth.
• Find bugs using breakpoints, LLDB statements and NSLogs.
• Comprehension of iOS memory management with MRR and ARC.
• Implemented UI with Storyboards, XIB and programmatic code.
• Experience with Location Management with Core Location, Mapkit and Google Maps.
• Used Jenkins and Xcode server bots for continuous integration.
• Worked with Push Notifications to enhance the user experience and relationship with the user.
• Worked with subversion and Git.
• Worked under SCRUM Agile environments with two week sprints, daily standups, demo and retrospective meetings.
• Handled media with AVFoundation, AVAudioPlayer and HLS.
• Worked on TDD environments with XCTest.

AREAS OF KNOWLEDGE

• TDD and Unit Testing
• SCRUM / AGILE
• Third Party Libraries
• Data Persistence
• Swift
• JavaScript
• API Consumption
• Authentication
• Bluetooth and Media handling
• Location Management
• Objective C
• Web Development

PROFESSIONAL EXPERIENCE:

Sr. iOS Developer

Confidential, New York, NY

Responsibilities:

• Implemented a new UI/UX based on wireframes from the UI designer.
• Implemented new animation to have a better user interface with Core Animation.
• Increased the modularity to allow for a better level of object oriented abstraction.
• Implemented Touch ID along other indicators, as a means of user authentication.
• Implemented the camera interface using UIImagePickerController.
• Created custom JSON Parsers through class extensions.
• Created a Networking Manager wrapper class to handle calls to the API.
• Traced Memory leaks using Xcode instruments tool.
• Used GIT and the branching model for software version control.
• Worked under SCRUM agile project management framework
• Used Core Location along with MapKit and custom MKAnnotations to display the doctors around the user’s location or for specific address.
• Consumed Confidential API with Alamofire and used JSONSerialization to parse the returned data.
• Made use of Cocoapods as the main package manager.
• Worked under the TDD approach using XCTest.

Keywords: Swift, Alamofire, Cocoapods, JSONSerialization, UITableView, UICollectionView, NIB, Cocoapods, Core Location, MapKit, JIRA, Core Animation, UIImagePickerController, XCTest, TDD.

Sr. iOS Developer

Confidential, Dallas, TX

Responsibilities:

• Implemented an attractive UI displaying the devices on the network. Used a UITableView implementation along with custom UITableViewCells.
• Developed the account sign in authentication.
• Developed the account sign up web service communication.
• Incorporated custom icons, colors and font on several sections of the application.
• Peer reviewed code from Jr. iOS developers and mentored them on the best practices, O notation of their solutions and on the advanced topics of the platform.
• Using the Xcode instruments tool made a performance analysis and identified several performance bottlenecks on the application. Additionally, collaborated with the team to improve the performance on the affected sections of the code.
• Traced, identified and refactored code to fix memory leaks on development and release candidate versions of the code.
• Implemented a custom activity indicator, a spinning blue semicircle.
• Designed and implemented unit tests for several core features of the application.
• Used GIT under the branching model and using a private repository for the version control of the source.
• Implemented networking communication with the router using a proprietary library.
• Team comprised of 6 members.
• Developed under the Test-Driven Development approach.

Keywords: Swift, Activity Indicator, UITableView, SCRUM, AGILE, GIT, XCTest, TDD, Xcode Instruments.

iOS Developer

Confidential, Chelmsford, MA 

Responsibilities:

• The project was implemented using scrum with 2 week sprints.
• Application developed using Objective C with the traditional combination of MVC, Delegation, Publisher Subscriber and Singleton.
• UI implemented using Storyboards with programmatic statements.
• Customization of all the UI elements using programmatic statements.
• This included Buttons, Labels, Table Views, Annotations and Pins.
• Navigation between views was implemented using both Segues and accessing directly the Navigation Controller to push views.
• Made use of Core Location to retrieve the user’s location.
• Use of the MapKit to present the location of the different meetings of the user.
• To get the information of the user and all his appointment locations, the application uses Core Location.
• Kronos’s API Consumption with NSURLSession and data parsing into local NSDictionaries with NSJSONSerialization.
• Designed the overall flow of the application.
• Collaborate with multiple teams and stakeholders.
• Made use of Xcode instruments to profile the application and track bugs.
• Custom UIButtons for an enhanced user experience.
• Made use of Core Data to ensure data persistence and reduce the amount of network calls on the user side.
• Version control was handled with GIT.

Keywords: Objective C, NSURLSession, Custom UIButton, NSJSONSerialization, NSURLSession, Core Location, MapKit, GIT, SCRUM.

iOS Developer

Confidential, Bellevue, WA

Responsibilities:

• App was refactored to meet the iOS 7 minimalistic design guidelines.
• Implementations of push notifications to support custom user alerts.
• Implementation of the Expedia API to request Hotel information such as prices, rooms, rating etc.
• Implementation of NSURLConnection for Web Service consumption using HTTPS Requests.
• JSON parsing using NSJSONSerialization to extract information into dictionaries and construct model classes.
• Customization of all the UIControls of the application using sub classing of simply modifying the properties of the objects.
• The project followed the scrum methodology with 2 week sprints and stand up sessions.
• Version control was implemented using Git.

Keywords: Objective C, Xcode, Git, Scrum, NSURLConnection, JSON, Instruments, Push Notifications.

Confidential

Web Developer

Responsibilities:

• Developed modules for a feature that analyzed fuel levels and multiple related metrics.
• Developed this web application using JavaScript, HTML and AJAX.
• Consumed data from an external API using JSON.
• Worked closely with the management team to ensure that the work got finished on time.
• Made use of best practices and handled information with security standards.

Web Developer

Confidential

Responsibilities:

• Developed a CMS web application with a feature that allows users to trace routes for vehicles to follow.
• Made use the Google Maps API.
• Developed with JavaScript, HTML and CSS.
• Consumed an external API through a JSON endpoint.