Roberto Carretero Cantú

E-Mail: advii7@r.postjobfree.com, Phone: 442-***-****

CORE COMPETENCIES

iOS Mobile Application Development

Software Development Life Cycle

Project Management

Development/Configuration Tools

Impact Analysis & Testing

Requirement Gathering

Agile & Scrum

Swift Package Manager

iOS Libraries

SwiftUI

MVC, MVVM, MVVM-C

Software Design & Architecture

CoacoaPods

RESTful and SOAP services

Team Management

PROFILE SUMMARY

A goal-oriented professional with over 10 years of experience in the design & development of iOS Mobile Applications

Expertise in Swift, C, and Objective-C, Object-Oriented Programming techniques and APNS, NodeJS, React, HTML, and CSS

Able to design and develop rich UI/UX via programmatic means, XIBs, as well as through Storyboards

Skilled in working on Apple and third-party frameworks and tools for storing data persistently such as; CoreData, Documents Directory, NSUserDefaults, pLists, Settings Bundle, Codable Protocols, and the Keychain

Honed abilities in end-to-end development of mobile applications for multiple projects simultaneously from requirement specifications, planning, designing, testing, implementation, and configuration to documentation

Experienced in designing and implementing flexible solutions in Mobile IOS application Development using UIKit, SwiftUI, and Core Foundation with Cocoa touch

Proficient in implementing UI/UX with Storyboards, XIBs, AutoLayout constraints, and programmatic elements

Solid knowledge and personal experience with the Swift language; optionals, tuples, extensions, do try catch blocks, etc

Integrated RESTful and SOAP web service requests for parsing JSON and XML responses, respectively

Skilled in consuming RESTful and SOAP web services with AF Networking and NSURL Session

Persistent storage implementations using Core Data, SQLite

De-bugging techniques with NSLog, Breakpoints, LLDB and Instruments

Development experience with both MRR and ARC

Seasoned in Agile/SCRUM project management methodologies

Demonstrated skills in the use of databases such as SQLite and MySQL

Strong knowledge of Core Frameworks like, MapKit, CoreGraphics, CoreAnimation, UIKit, CoreLocation, AVFoundation, CoreData, CloudKit, CoreBluetooth, EventKit, and Social Framework

Expertise in MVC, MVVM, and MVVM-C design architecture, as well as OOP and POP patterns and concepts like delegation, protocols, notifications, and categories/extensions

Proficient in source control with Git and SVN and use of third-partyGUIclientssuch as SourceTree, Tower, and GitHub

Strong commitment to organizational work ethics, supporting organizational goals and the team

TECHNICAL SKILLS

Languages:

Swift, Objective-C, C, Python Assembly, React, NodeJS, HTML, CSS, JavaScript

Databases:

CoreData, Realm, UserDefaults, Key Chain,SQLite, NSCoding, NSKeyedArchiver, FileManager

Frameworks:

AVFoundation, AVKit, CocoaPods, AFNetworking, AlamoFire,

CloudKit, CoreBluetooth, MapKit, LocationKit, Common Crypto, AWS, Firebase, Message Kit, UIKit

Version Control:

SVN, GIT, SourceTree, Tower, Command Line / Terminal, GitHub, Bitbucket

IDEs:

XCode, Visual Studio, Android Studio

Architecture Patterns:

MVVM, MVP, MVC, VIPER, Coordinator

Project Management Tools:

JIRA, Confluence, KanBan, Redmine, Basecamp, Slack

Methodologies:

SCRUM/AGILE, BDD, TDD, Waterfall

Testing Methods:

Unit Testing, XCTest, Automated Testing, XCUITest, Quick, Nimble, Cucumber

Continuous Integration:

Jenkins, Travis, Hudson, TestFlight

Tools

Instruments, Analyzer, Accessibility Inspector, Charles Proxy, Postman,

EXPERIENCE

Sr. iOS App. Developer

Movies Anywhere, Burbank, California Jul’21-Present

https://apps.apple.com/us/app/movies-anywhere/id1245330908

Purchase from your favorite places*, and Movies Anywhere will bring your favorite movies together into one synced collection – for free.**

MORE ACCESS IN MORE PLACES

Create your free Movies Anywhere account and connect your digital retailers to bring your favorite movies together. Watch them on Movies Anywhere or across any of your connected digital retailer accounts.

Developed the iOS app for iPhones of Compact/Compact, Compact/Regular, and Regular/Regular Size Classes

Utilized Auto Layout in Xcode

Used Vary for Traits in Interactive Builder

Added features to support user customized contents collections and allow user to add, delete and reorder their own lists of desired contents

Utilized SwiftUI, Combine, and MVVM architecture to construct a modern solution and created custom layout for re-sizable grid, which places tiles within computed rectangles, using SwiftUI

Created and worked on POCs for experimental applications on tvOS

Utilized AVFoundation and AVKit to perform video streaming services

Migrated from Carthage to Swift Package Manager

Programmed in both Swift and Objective-C

Invoked RESTful web calls using Alamofire, RxSwift, and SwiftyJSON

Implemented “Clear play” to enable function to automatically skip scenes that may be uncomfortable for select audiences.

Enhanced continuous integration, adding XCUITests and unit tests in Jenkins continuous integration tool, and connecting automation flow from development to releasing

Configured SwiftL intto support custom formatting rules

Replaced Fabric with Firebase Analytics to get application live info

Monitored Crashlytics report and resolved critical issues immediately

Changed push notification third-party tools, improving consistency and cost of maintenance across different platforms

Added utility functions and common UI pieces to the code base that could easily be reused, keeping the app look consistent

Debugged using Charles Proxy and Postman

Utilized Instruments, Crash Logs, LLDB statements, NSLog statements, and Breakpoints to resolve various issues and bugs brought to the attention of the QA team

Added Localization to the iOS app to enable content tailored to a user’s language settings

Utilized keychain to store user passwords securely

Added touch-states to several buttons across the app which were missing them.

Sr. iOS Mobile App. Developer

NCR Aloha Mobile 16, Atlanta, GA Mar’19 – Jun’21

https://apps.apple.com/us/app/ncr-aloha-mobile-16-1/id1287520803

Aloha Mobile allows restaurants to easily and securely deploy mobile POS software technology for table server and quick server ordering and payment. With Aloha, you now have the choice to use traditional POS terminals and iOS devices within the same location.

Aloha Mobile enables your staff to spend more time with their guests and leverage guided selling on the mobile devices, resulting in better service, increased order accuracy and consistent up selling.

With Aloha Mobile, the order-to-service cycle runs more quickly, enabling you to serve more guests and shorten wait times to keep potential guests from walking out. Orders are more easily communicated from the guest to the kitchen or bar in a single step.

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Gathered requirements, and interfaced with UI/UX designers and product owners to develop an attractive, user-friendly, customer-facing app

Worked with Swift and Xcode

Coded in Swift on iOS mobile in Xcode IDE, and made use of Storyboards, Interface Builder, and Instruments

Took a BDD testing approach working with testing frameworks such as Quick and Nimble

Completed extensive bug-fixing using NSLog statements, Breakpoints, LLDB statements, and Instruments

Worked with Local Notifications to notify users when certain events occur

Git Flow for branching strategy within GitLab as well as SourceTree and command line tools for Git

Used CocoaPods for third-party dependency management

Used a combination of Storyboards, XIBs, and programmatic approaches to creating UI

Regularly performed code reviews to ensure efficiency, readability, and maintainability

Integrated Firebase Crashlytics and analytics services to best track user usage and crash reports

Used Jenkins for continuous integration and continuous deployment

Mentored junior developers, teaching best practices and conducting regular paired programming sessions

iOS App Developer

KBB.com-New & Used Car Prices, Intuit, Irvine, CA, Sep’17– Feb’19

https://apps.apple.com/us/app/kbb-com-new-used-car-prices/id367353324

This app will provide you with information to help with researching a vehicle or disposing of the one you have.

You can find out what your current vehicle is worth, check prices for your next one, or find a dealer using maps and directions.

The app allows you to view pictures and videos, and it features a Twitter feed.

Used Swift and RxSwift using Xcode.

Interacted with the Backend team to display the correct data format in devices

Worked with Git to checkout the codebase, manage merges and commits, and update the codebase changes

Worked on RxSwift in coordination with MVVM to bind the model and view so that the view reacts to changes in the model.

Handled API Consumption with URLSession and data parsing into local Dictionaries with Codable protocol

Added authorization request “While in use” for users’ location services

Displayed information in table views with custom cells created with nib and custom subclasses

Used Core Data Framework for local storage purpose in SQLite

Performed build work in latest Xcode and Swift 5 using MVVM design pattern.

Used Objective-C and Cocoa Touch Framework to build the app, including UI Kit, Foundation, UI Navigation View, UI Tab Bar Controller, UI Table View and Storyboard

Implemented Bluetooth Charectristic, services Schema to keep track of Bluetooth services and perform extensive work with the low-level Bluetooth stack.

Integrate Rx AndroidBLE library to scan Bluetooth devices and communicate attributes.

Added push notification for changed location and login success.

Handled version control with GIT.

Worked on improving MapKit and Core Location services to reduce drain on battery life.

Leveraged Keychain to securely store sensitive user information.

Added animation between UI Views for a smooth transition and better user experience.

Worked with Storyboards, Size Classes, and Auto Layout constraints for graceful orientation handling and support for various iPhone and iPad devices.

Worked closely with a cross-functional team of testers and developers.

Continuously provide input to project management activities throughout the project life cycle, influencing scope, risk plan, project plan, issues, and status

iOS Mobile App. Developer

Truecoach Inc, Boulder, Colorado Jan’15 – Aug’17

https://apps.apple.com/us/app/truecoach-for-clients/id1439127794

TrueCoach is built for personalized fitness coaching. Check your workouts, communicate with your coach, and track your progress over time - in one easy-to-use app.

TrueCoach is the number one platform for coaches and trainers who want to manage more clients with less admin work. Our easy to use workout builder features a 900+ video exercise library, plus the ability to upload your own videos or even migrate them over from YouTube or Instagram directly. We want to help eliminate accountability issues which is why we built a robust internal messaging function so you can connect and engage with all of your clients on one platform. Spend more time doubling down on what you enjoy and that's engaging with clients, tracking and measuring their data, and delivering the highest level coaching experience possible.

Updated the project, frameworks and dependencies to latest version of Xcode

Worked on legacy UI elements changes and implemented the new design specs almost entirely programmatically

Worked with GCD to build a responsive UI and implemented background threads

Used Core Animations to enhance the user experience and generated build on MVVM architecture

Parsed out new objects from the Contentful API to present AV media content to the user based on region and locale

Performed work in an Agile style practicing Scrums and Sprints

Worked in different environments with normal GitFlow and used Bitbucket and Git for version control along with Sourcetree and Terminal

Used Delegates and NotificationCenter to communicate between classes and pass data between ViewControllers.

AVFoundation was used to handle audio play back and video streaming

Utilized CoreBluetooth to communicate with various devices

Applied Apple UI guidelines throughout the project

Fixed critical bugs in the booking flow and MapKit framework

Used DispatchGroups to perform multithreading operations in asyncronous tasks

Performed programming in Swift language

Used Instruments for profiling and memory management and GDB for debugging and worked with Xcode

Managed merges and commits on private Git servers with Jenkins CI for testing on devices

iOS App. Developer

Home Depot, Atlanta, GA Dec’12 – Dec’14

https://apps.apple.com/us/app/the-home-depot/id342527639

It’s a good time to be a doer.

DIY IN THE PALM OF YOUR HAND

Save time with The Home Depot app. Shop over one million products and find the info you need most.

SNAP A PICTURE, FIND WHAT YOU NEED

Don’t know what something’s called? Just snap a picture and let our Image Search feature tell you.

Dveloped the app using Objective-C and XCode

Worked with UIKit Framework for development and maintenance

Customized UI to create common styling guides and used it throughout the codebase.

Updated logos, colors, and fonts used throughout the applications to the new branding schemes provided

Worked with MVC architecture and eventually started work in cascading the application towards MVVM architecture

Utilized Github and SourceTree for source control

Regularly consumed RESTful API services with SwiftyJSON to have real-time data from the backend

Used Storyboards and AutoLayout constraints to create universal layout designs.

Implemented UITableViews and UICollectionViews to have an efficient user experience integrated into the Products and Product Detail Pages

Enhanced and optimized map functionality using MapKit, CoreLocation, and MKAnnotations

Identified defects and worked with the QA team to resolve defects as per feedback from the QA team

Conducted XCTest for unit testing with a TDD approach

Coordinated with the team members to develop a bug-free application.

Collaborated with offshore teams using the Scrum methodology.

ACADEMIC DETAILS

Universidad Regiomontana – Facultad de Ingeniería y arquitectura, Ingeniero Industrial y de Sistemas

Universidad Autónoma de Nuevo León – Facultad de Ingeniería Mecánica y Eléctrica Técnico Desarrollador de Software

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