Eric O'Hara Espejo

Senior iOS Developer

Swift Apple iOS Objective-C

PROFESSIONAL SUMMARY

Experienced developer with over 8 years’ experience developing iOS applications using Swift, Objective-C, and Xcode.

Experienced in multiple versions of Swift, current with new developments and releases.

Experienced Lead Developer who works well with internal and external team members, both remote and on-site, and embraced team diversity.

Experienced in development of successful consumer-facing iOS mobile apps.

Experienced in quality code metrics and use of quality guidelines to produce high quality code that is sound, consistent and sustainable.

Experienced quality reviewer, coordinating code walk-throughs.

Implemented applications using Storyboard, Xibs, and programmatically UI building.

Full software development life cycle (SDLC), including coding standards, code reviews, source control management, build processes, testing, and operations.

Experienced collaborative team member who mentors and supports team members, assists in code reviews and gains cooperation of stakeholders.

Experienced consuming REST and SOAP services and using AFNeworking and AlamoFire, NSURL Connection to update application with new data.

Experienced with MVVM architecture and object oriented (OO) principles in iOS

Experienced with layouts that handle phone and tablet resolutions

Experienced with iOS performance profiling tools

Experienced with continuous Integration, Jira,

Experienced investigating and debugging issues in iOS mobile applications.

PROFESSIONAL SKILLS

Languages: Swift, Objective-C,

Databases: CoreData

IDE: XCode, Eclipse,

Operating Systems: iOS, watchOS, Windows, Linux, MacOS X

Version Control: Git, GitHub, SourceTree, Subversion (SVN), IBM Team Concert

iOS Frameworks: CoreData, Cocoa Touch, CoreLocation, CoreBluetooth, MapKit, UIKit, QuartzCore, XCTest

iOS Tools: XCode, Simulator, Instruments, CocoaPods, Firebase

Testing and Issue Tracking Tools: JIRA, Jenkins, TestFlight, XCTest, TDD, Unit Testing

Design Patterns: Model View Controller (MVC), Model View ViewModel (MVVM), Observer, Builder, KVO, KVC

Networking: RESTful, SOAP, JSON, XML, AlamoFire, AFNetworking

Operating Systems: Windows, Linux, Ubuntu, MacOSX

Other: Security, Silverlight, JSP, WCF, Angular.js, Boostrap

PROFESSIONAL EXPERIENCE

Senior iOS Software Developer March 2019 - Present

Intuit Mountain View, CA

Apps: Next30, Cash Center, One Onboarding development pods

Next30

Purpose: For users to see their future budget and many more insights for small businesses. Standalone app deployed in TestFlight for insights.

Situation: Business wants to check their cashflow in the future if they can budget for new assets for their company.

Problem: Users could not foresee their cashflow and will not know if they are dipping to low with their budget, or they do not know where they are spending too much.

Solution: Creating a cashflow forecaster gotten from past data and translated into predicted cashflow and adding current monthly cashflow. Users could also add more to properly see a forecast of their future cashflow.

OneOnboarding

Purpose: For users to easily signup for capital / loans which is being offered by the company.

Problem: Businesses are having cashflow problems and would not have extra capital to run their business.

Solution: Make signup easy and convenient to users as well as provide a way for them to know if they are approved right away.

Cash Center

Purpose: To manage the users ‘QB wallet’ when they are approved for the loan. Consists of OneOnboarding and Next30 which will be the main pod included in the main application.

Worked in a development environment of Swift 5.1 using Xcode 11.1 and Realm.

Coded the iOS applications in Swift 4 and Swift 5 using Xcode IDE with Interface Builder and Storyboards.

In-charge of ‘First Time Use’ screens, built with a UIPageViewController and implemented using designs provided.

Handled UI using both Storyboard and programmatically.

Implemented SwiftLint to the project target.

Acted as tester and joined test jams to check the status of the project.

Actively engaged in troubleshooting and bug fixing.

Worked on a team of 8 – 12 people; with 3 project management, 3-6 iOS developers, 3 backend developers following Agile Scrum development and attended daily scrums and sprint planning meetings.

The team used JIRA to track work and GitHub and SourceTree to manage code-base, commits and branches.

Worked on cross-project tasks with tasks in multiple projects in the same sprint.

Worked using MVC and MVVM architecture with a coordinator pattern.

Used Codable protocol for parsing JSON.

Ensured application supported a variety of devices ranging from iPhone SE to iPads by using Size Classes

Mentored other developers who are learning mobile programming.

Used GCD for multithreading to make sure not to lock up the main thread.

Migrated ‘First Time Use’ screens to another project as well.

Made sure that we are compliant to the rules and regulations set by US law.

Gave inputs/suggestions on the tone of pages as well as some design factors.

Creation of multiple pages, including ‘About’, ‘Settings’ and ‘Feedback’

Created a link to go to feedback page and connected the survey feedback to our Slack channel.

Responsible for cross-functional project setup.

Released Version 0 to beta users and provided feedback on the applications roadmap.

Presented the screens created to the team

Technologies: Swift 4, Swift 5.1, Xcode 11.1, Realm JIRA, GitHub, SourceTree, Slack, BlueJeans, SwiftLint, Grand Central Dispatch (GCD), MVC, MVVM, Coordinator Pattern, Agile, Scrum, Sprint

Senior iOS Developer August 2017 – March 2019

Thumbtack San Francisco, CA

App: https://itunes.apple.com/us/app/thumbtack-hire-home-services/id852703300

Thumbtack is an online service that matches customers with local professionals. Currently, Thumbtack lists 1,100 types of services in categories such as home, wellness, events, and lessons.

Worked in Xcode to develop the iOS mobile app in Swift for new features and refactoring some legacy Objective-C code in the hybrid code-base with bridging headers.

Designed screens for IPhone using storyboard and AutoLayout constraints in view controllers

Implemented CoreLocation/Location Manager tweaks to fully support changes in iOS, namely always vs while in use authorization

Consuming Restful web services and getting them in JSON format and displaying data in the view controllers.

Validated Users based on their username and password.

Stored log details into the database using API's and retrieving them back in log data

Helped revamp the entire framework for delivering API requests and user data and turned it into a CocoaPod, written in Swift, that the entire development team can use

Implemented User notifications when user has completed the trip to show trip details.

Designed and customized mockups before starting the actual development.

Integrated iPhone application with applications across all aspects of the client: user input, protocols, performance, memory management, debugging.

Validating Users based on their username and password.

Designed icons and images that are required for App using Sketch

Implemented User notifications when contractor responds to message.

Designed and customized mockups before starting the actual development.

Integrated iPhone application with applications across all aspects of the client: user input, protocols, performance, memory management, debugging.

Worked with server team to improve data consumed from API’s for internal libraries and development

Used Jenkins CI and Git for continuous integration testing and used SourceTree to manage Git code repository.

Senior iOS Developer April 2016 - August 2017

Fox News New York, NY

App: https://itunes.apple.com/us/app/fox-news-live-breaking-news/id367623543

The Fox New iOS mobile app features a home screen with summaries of news stores. From there you can go to a “watch” screen or a “Listen” screen for any story. This release is available on Apple Watch as well as iPhone and iPad.

Developed in Swift using Xcode and used various native and third-party frameworks in an MVVM architecture.

Created view animations using UIAnimation classes and QuartzCore framework.

Created Custom UITableView cells to accommodate the UX/UI requirements.

Built iOS Storyboards and established IBOutlet, IBActions, create and perform segues between Mobile Application Developer - iOS different scenes in the storyboard.

Involved in the Analysis, System study and designing of the project.

Coordinated with onsite team and client in understanding the requirements and business logics.

Used AVFoundation for audio-video playback and management.

Designed UI using Storyboard and Auto Layout constraints.

Implemented Navigations between views for the view controllers using Segues.

Followed the Apple UI guidelines throughout the project.

Utilized CoreData for persistence of data and used versioning for data changes.

Implemented UIScrollView to show the information about the usage of application.

Worked with UIKit Framework for development and maintenance.

Managed GitHub repository creating branches doing merge, pull request and releases.

Worked as a member of iOS development team following Agile Scrum practices and participating in daily stand-ups, bi-weekly sprints and code reviews.

All web communications are performed in background threads to enhance performance and the user experience.

Utilized GCD/NSOperation multithreading techniques for downloading images on background thread as to not lock up the UI and ongoing animations

Implemented logic to connect to server in order to download document data using GCD

Senior iOS Developer March 2015 - April 2016

Sprint Overland Park, KS

App: https://itunes.apple.com/us/app/my-sprint-mobile/id491126018

Manage your Sprint Mobile account. Check for upgrade eligibility, view and pay your bill or find the tech support you need. The app features and updates designed to improve user experience.

Coded the application in a hybrid code-base fo Swift and Objective-C using bridging headers.

Worked to develop the application using Xcode, and managed Git code repository with SourceTree with a Jenkins CI.

Invoked RESTful web service calls using AFNetworking framework; POC’s made in Swif

Wrote web services to interface with the iOS Mobile App. All web services are RESTful and use Open Authentication to implement a secure environment.

Refactored RESTful requests from NSURLConnection to AlamoFire to be compatible with iOS7+ new standard.

Worked with MVVM architectural pattern and Delegation, Notifications, KVC, and Singleton design patterns.

Key contributor to brainstorming sessions for iOS app enhancements, features and fixes.

Active in leading and mentoring other team members.

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

Applied new layout, refactored source code, reduced app size, fixed memory leaks, reviewed source code, and optimized performance. Wrote unit test. Managed project configuration.

Assisted in running various Agile project management meetings (Sprint Planning Meetings, Scrums, etc.

Built wireframes for app designs, Coding of applications, Built application test framework with UI Automation.

Built, tested and deployed a scalable and modular application. Also modified existing software to correct errors, improve performance and adapt to new versions of iOS.

Senior iOS Developer March 2014- March 2015

The GAP, Inc. San Francisco, CA

App: https://itunes.apple.com/us/app/gap/id326347260?mt=8

Worked on the iOS mobile app in Xcode with Objective-C and started transitioning code and developing new features in Swift.

Collaborated with design and marketing team on look and feel of mobile app.

Collaborated with design team, QAs, scrum master and product owner to implement enhancements or new applications during daily standups, sprint planning and sprint retrospectives.

Collaborated with internal and external teams - Product Managers, Engineers, Designers, and Marketers to conceptualize, build, test, and realize new features.

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

Continuous integration and deployment, and unit testing using the tools like Rally Dev, Cornerstone, Core, and Jira.

Coordinated with project manager and lead developer to design and develop a public facing iOS application.

Core Location framework was integrated into project to allow user to find closest location.

Created and customized views, table views, tab bars and navigation bars, which are some basic functionality in a multi-view application.

Created customized and sophisticated UI/AX elements that prioritize user experience (UX).

Created notifications to detect the autorotation in the customized sub views.

Created models in MVVM and development of delegates for updating model information.

Senior iOS Developer May 2013 – March 2014

American Express New York, NY

App: https://itunes.apple.com/us/app/amex-mobile/id362348516

Worked on the iOS app in Xcode iDE and developed entirely in Objective-C with native iOS libraries and frameworks.

Worked in an Agile environment, with daily scrum, two week sprints, sprint planning, and retrospectives.

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

Design and Develop persistent data layer using Core Data.

Design Core Data objects and use NSOperations to get all GPS coordinates and trip information using encryption AES 256 to store the information.

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

Implemented many OOP and patterns like MVC, KVO and Singleton.

Took part in full Software Development Lifecycle of multiple applications from concept to production.

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

Fixed memory issues by using Instruments, most notably using the Allocations and Time Profiler tools.

Worked through Issues and Backlog tasks pulled from JIRA.

Used Trello for iOS team communications.

Integrated Touch ID capabilities, using Local Authentication

Added integration of time and deadlines using EventKit, with Apple Push Notifications to alert users.

EDUCATION

Bachelor of Science in Business Administration in Computer Applications

College of Saint Benilde, Manila, Philippines

Certifications:

IBM Agile Explorer

IBM Blockchain Essentials

Big Data Foundations I

IBM Design Thinking Practitioner

ASP.NET Core

adma10@r.postjobfree.com

. 650-***-****

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