ios developer

PROFESSIONAL SUMMARY

* ***** ** ********** ** I.T. and mobile app development, creating apps for iOS devices using Xcode and iOS SDK with Objective-C and cocoa frameworks.

Built Rich User Interface applications, integrating with various Databases and Client - Server applications in iPhone/iPad. Application development using Objective-C, Swift, Cocos2D, Cocoa Touch, UIKit.

Strong working knowledge of Xcode, CocoaTouch, Objective-C, Swift, and iOS.

Extensive experience in iPhone and iPad application development.

Knowledgeable in Memory Management and Performance Improvement.

Constructed and implemented UI designs using Storyboards with AutoLayout constraints, XIB files, and programmatically following Apple's iOS Human Interface Guidelines

Experience in the entire software development life-cycle including requirements gathering, design, coding, testing, debugging and maintenance.

Expert in Object Oriented Programming with experience implementing MVC, KVO, and Singleton architectures

Strong knowledge in implementing core Frameworks like CoreLocation, CoreGraphics, MapKit, UIKit, and EventKit Frameworks.

Familiar with implementations using AVFoundation for playing/streaming content as well as barcode scanning

Worked extensively on XCode, Interface Builder and Instrument.

Strong at using the third-party frameworks effectively.

Highly-experienced with design patterns such as MVC, MVVM, Viper, Delegation, Singleton, Categories, Notification, KVC, KVO, Blocks.

Experience integrating with multiple RESTful web services and parsing JSON responses.

Utilized Mode View Controller architecture to help keep codebase organized and keep classes decoupled

Experienced in working with Storyboard, Interface Builder, XIB files, program Interface and Auto layout.

Regularly participated in pair programming sessions

Experienced in an Agile Scrum development environment, participating in Sprints and Scrums; and employing Test Driven Development (TDD) and Continuous Integration.

Working knowledge on Bluetooth Low Energy (BLE) Communication, Unit testing and automated testing.

TECHNICAL SKILLS

Programming Languages

Objective C, Swift, HTML/CSS, SQL

Web Services

RESTful, SOAP, JSON, XML

Architecture & Design Patterns

MVC, MVP, MVVM, Abstract Factory, Façade, Decorator, Builder, Singleton,

iOS Development

App Extension

Handoff

Data Persistence

Core Data, Realm

Testing

TDD

Unit Testing

XCTest

Automated Testing

Jenkins

TestFlight

Software Project Management

Agile, Scrum, Pair Programming, Xtreme Programming, Software Development Lifecycle (SDLC), Sprint Planning, Requirements Gathering, Backlog, Daily Scrums, Task Prioritization, Working with Product manager, Scrum Master

IDEs/UI Tools

XCode

Eclipse

IntelliJ

Visual Studio

Storyboard, Xib, Interface Builder

Frameworks

Cocoa, CocoaTouch, CocoaPods, Reactive-X, ReactiveSwift, ReactiveCocoa,

Core Data, UIKit, CoreGraphics, Core Animation, XCTest, Core Bluetooth, MapKit Core Location, Location Kit

EventKit, Social Framework,

TextKit, Realm,

UIKit, UI Dynamics, SDWebImage, Kingfisher, Alamofire, AFNetworking

Version Control Tools

Git and SVN

Desktop Software

Proficient in Microsoft Office Word, Excel, PowerPoint, & Access

Project Tools

JIRA, Confluence, Slack, Trello

Version Control

Git, GitHub, SourceTree, BitBucket, Tower

Continuous Integration

Jenkins, Hudson, Travis

PROFESSIONAL EXPERIENCE

Dick’s Sporting Goods July 2020 - Present

Senior iOS Engineer

Los Angeles, CA

https://apps.apple.com/us/app/dicks-sporting-goods-fitness/id556653197

Worked with Realm to store information

Constructed responsive frameworks with RxSwift

Implemented the foundation for SwiftLint and the .yml file it uses for both local Xcode as well as on the CI pipeline.

Alleviated race conditions in the app by using dispatch groups.

Lead 2 engineers to complete UI bug fixes.

Created unit test cases for a several parts of the application.

Worked at fixing the special offers that we offer to the users.

Implemented Address Verification Services to our user registration.

Led discussions on the project progress in team retros.

Addressed comments left on pull requests from lead and principal engineers.

Worked with backend team to alleviate network issues and optimize slow network calls.

Worked on user interface work throughout the app.

Agile process, with daily stand ups, 1-2 week sprints, and 2-week release cycle.

Gave presentations on work I have done whole fielding questions.

Gave information and context on problems/issues that I have worked on.

Onboarded new engineers by walking through the SSH key process.

Addressed issues that arose from the team I was leading and fixed them.

Refactored large sections of outdated code.

Review pull requests to conform to SOLID principles.

Managed RunTools on several pull requests to address styling and linting issues.

Delegated work that needed other attention while providing in depth KTs.

Use Firebase to analyze the application.

Performed Paired programming sessions with all members of the team.

Tested the project on several devices and simulators.

UPS Mobile Oct 2018 – July 2020

Senior iOS Developer

Atlanta, GA

https://itunes.apple.com/us/app/ups-mobile/id336377331

Worked on refactoring code to Swift 4

Imported correct assets to be used on a Lexus head unit, such as the background image of the current street label.

Refactored the Search Results View Controller from MVC to MVV mobile app architecture.

Split the view controller even further by separating the Full-Screen Logic to Reduced-Mode Logic.

Tested a cross-border feature which checks if a requested route will result in a border crossing and alerts the user.

Replaced UISearchDisplayController related code with the new UISearchController API

Merged the cross border feature into master.

Used BitBucket for source control and integrated with SourceTree as part of app transition.

Replaced Contacts related code with the new CNContactStore API.

Mentored team on method of testing the Search View Controller to assure there were no big regressions.

Worked on bug fixing and improving application performance, also tested on various Devices for UI

Worked on Continuous Integration.

Worked on implementing several design patterns like Singleton, designed MVVM pattern with Data model classes and several Categories were made to the existing classes.

Worked on adding localization to the app to handle a plethora of different languages.

Map View implementation using the MapKit and Core Location Frameworks.

MapKit, CoreLocation and MKAnnotations used to make UI tweaks on the map view and enhance functionality

Added a new 'Nearby' function to the app using Mapkit, which helped locate nearby locations.

Wayfair Jan 2018 – Sept 2018

iOS Application Developer

Boston, MA

https://itunes.apple.com/us/app/wayfair-shop-furniture-home-decor-daily-sales/id836767708

Used BitBucket for source control and integrated with SourceTree as part of app transition.

Mentored team on method of testing the Search View Controller to assure there were no big regressions.

iOS code review and mentored junior developers on iOS best practices.

Xcode was the IDE with coding in Swift and RxSwift with RxCocoa to manage third-party frameworks and libraries.

Created Notifications module that resurfaces notification messages through APN's from a database connected on a secure socket.

Refactored adapter classes from JSONSerialization to Codable.

Adopted Swift 4’s new changes throughout codebase during migration, including usage of Codable, String collections and various other API changes.

Zillow Feb 2017 – Dec 2017

iOS Mobile App Developer

Seattle, WA

https://itunes.apple.com/us/app/zillow-real-estate-rentals/id31073869

Followed continuous integration and test-driven development (TDD) principles in a strict Agile/Scrum environment.

Imported and integrated 3rd party libraries through CocoaPods.

Worked with MapKit, CoreLocation and MKAnnotation to make UI tweaks on the map view and enhance functionality to get the latitude and longitude co-ordinates.

Worked with Core Data to prepopulate UITextfields with persisted data received in prior web service calls.

Used Entity Framework to design conceptual data access layer from relational database to get the data from the database.

Implemented push notifications by creating APNS certificates and displayed all the notices in one location in Notices Tab and also handled push notifications effectively with server for integration.

Used SDWebImage for image caching and downloading.

Improved data management by refactoring iOS legacy code to reduce race conditions and memory access issues leading to crashes.

Third-party tools included Firebase, Crashlytics, DeviceKit, and GRDB.

iOS development team size ranged from 3 to 6 developers.

Major contributions would be in completing backlog items and fixing priority crash reports.

Worked with web/backend team to implement Single Sign-On in multiple apps.

Used Crashlytics for testing and identifying cash issues.

Worked with NSOperations to consume RESTful web services.

NerdWallet Jan 2016 – Jan 2017

iOS Developer

San Francisco, CA

https://apps.apple.com/us/app/nerdwallet/id1174471607

Used Swift primarily with some objective-C and bridging headers to manage backward compatibility.

Implemented push notifications, so that users could get updates on balances.

Performed a security audit, to make sure that the user’s information is secure, using certificate pinning and other techniques.

Updated UI elements as instructed by our UI/UX team, using Xib files along with some programmatic implementations.

Used UserDefaults to store user’s app preferences, while making sure to keep personal information out of there for security reasons.

Used iOS charts to display budget information in meaningful ways to the user

Developed entirely in an Agile process, utilizing daily standups, using sprint planning, retrospectives, and JIRA.

Worked in a team of 4 iOS developers, and communicated regularly with the UI/UX team

Tracked code using Git with Jenkins CI for continuous integration.

Participated in code reviews and followed Test-Driven Development (TDD) methodology.

WABC Eyewitness News Oct 2014 – Dec 2015

Junior Mobile App Developer

New York, NY

https://apps.apple.com/us/app/wabc-eyewitness-news/id404607612

Worked as part of iOS development team comprised of 4 developers, 1 UX designer and 1 product owner.

Used Xcode IDE and coded in Objective-C and Swift, transitioning this iOS mobile app code base from Objective-C to Swift.

Refactored legacy Objective-C code and add new coding using Swift.

AVFoundation was used to handle audio play back and video streaming.

Used NSCache to enable caching workflow for images to reduce loading time from the initial launch of app onwards.

Adapted Core Animation and CALayer to crop and animate images over videos.

Used Restkit library to make connections to server, and handle authentication challenges.

Connection to web service was achieved using GCD. Delegate methods implemented to handle reception of response, data, error.

Analyzed and optimized the UI and the backend interface code for efficiency and performance.

Profiled the application extensively using Instruments to improve performance throughout multiple sprints.

Tested system and application performance limits and characteristics to optimize iOS app performance.

EDUCATION

Interdisciplinary Computing and the Arts

University of California – San Diego

6 years of experience in I.T. and mobile app development, creating apps for iOS devices using Xcode and iOS SDK with Swift, RxSwift and various frameworks.

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