Ryan Grier

Resume

Staff iOS Engineer with over 20 years of software development experience. Self-taught iOS developer since the SDK launched in 2008, full-time mobile engineer since 2010. Proven track record leading projects featured on the App Store multiple times.

Download PDF Resume

Experience

Vanguard
Application Engineering Technical Lead - II
Jun 2025 — Present
Slice
Staff iOS Engineer
Aug 2021 — Jun 2025
  • Contributor to Command Center iOS team to design and develop Owner's Portal iOS app utilizing Swift, SwiftUI, Swift Testing, iOS 15+, RxSwift, and Combine.
  • Contributor to Consumer iOS team to design and develop iOS app utilizing Swift, SwiftUI, Quick/Nimble iOS 15+, RxSwift, and Combine.
  • Designed and implemented card-scanning software using Apple’s Vision Framework.
  • Led accessibility efforts to make the iOS App ADA-compliant.
  • Led efforts to identify and reduce teams' technical debt.
  • Contributor to SwiftUI-based component library.
  • Winner of the Fall 2022 and overall 2022 Slice Hackathons.
Warner Bros. Digital Labs
Sr Software Engineer (iOS)
Jan 2019 — Aug 2021
  • Contributor on iOS team to design and develop multiple iOS and tvOS apps utilizing Swift, iOS 11+, Storyboards, Auto Layout, and Realm.
  • Lead iOS developer on DC Universe and DC UNIVERSE INFINITE.
  • Lead iOS developer on Boomerang - Cartoons & Movies.
  • Led efforts to design and develop a comic book streaming mechanism iOS for DC Universe and DC UNIVERSE INFINITE.
  • Developed multiple internal libraries utilized by DC Universe, DC UNIVERSE INFINITE, and Boomerang.
  • Boomerang and DC Universe have been featured on the App Store multiple times.
Comcast
Principal iOS Engineer
Oct 2018 — Jan 2019
  • Contributor on Xfinity Home iOS app and Xfinity Home Video team.
Warner Bros. Digital Labs
Software Engineer (iOS)
Jul 2016 — Oct 2018
  • Contributor on iOS team to design and develop multiple iOS and tvOS apps utilizing Objective-C, Swift, iOS 10+, Storyboards, Auto Layout, and Realm.
  • Led efforts to rewrite the DramaFever tvOS app from the ground up.
  • Contributor on Boomerang - Cartoons & Movies to deliver initial app rapidly.
  • Led efforts to design and develop a comic book reader & download mechanism for iOS and tvOS for DC Universe.
Comcast Interactive Media
Principal iOS Engineer
Sep 2013 — Jul 2016
  • Led team of developers (locally and offsite) to design and develop Xfinity Home iOS mobile app utilizing Objective-C, Swift, iOS 8+, Storyboards, Auto Layout, HAL, and Core Data.
  • Led efforts to design and develop 24/7 Video Recording in the iOS app.
  • Designed and developed a remote logging service that enables application health monitoring.
  • Led efforts to automate the iOS build system for Xfinity Home and other Comcast iOS apps.
Barclaycard
Mobile Engineer Tech Lead
Dec 2011 — Sep 2013
  • Led team of developers to design and develop Mobile Payments app for iOS utilizing Objective-C, iOS 5+, Storyboards, SQLite, and Paydiant SDK.
  • Provided mobile and web-service rapid prototypes utilizing Objective-C, Java (Android), PhoneGap, HTML5, JQuery Mobile, and CoreData.
  • Designed and developed Peek functionality for iOS. A patent was granted for this work.
NAVTEQ
Senior Mobile Engineer
Nov 2010 — Dec 2011
  • Designed and developed NAVTEQ Mapping SDK for iOS utilizing Objective-C, iOS 3.x, YAJL, and OCUnit.
  • Assisted Trapster iOS app transition from Google MapKit to NAVTEQ SDK (14+ million users).
Guideworks / Comcast
Engineer 4
Oct 2005 — Nov 2010
  • Developed Comcast’s MyDVR product utilizing Java 1.5, Oracle 10g, Hibernate, Spring Framework, XFire, JBoss, JUnit, and JMeter.
Siemens Medical Solutions
Software Engineer
Apr 2004 — Oct 2005
CentraView, LLC
Java Programmer
Sep 2003 — Apr 2004
Appligent
Programmer
Sep 2002 — Sep 2003
IBSi
Programmer Analyst
Jul 2000 — Aug 2002

Patents

US11424930B2 ↗
Systems and methods for providing account information
2022

Education

Penn State Great Valley
Master of Science, Software Engineering
2002 — 2004
Millersville University of Pennsylvania
Bachelor of Science, Computer Science
1997 — 2001