Justin Kent, Developer in Jupiter, United States
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Justin Kent

Verified Expert  in Engineering

Software Developer

Jupiter, United States
Toptal Member Since
June 20, 2022

Justin's start in software dates back to the mid-90s, building websites with HTML and Flash ActionScript. Soon after iPhone launched, he started developing for mobile, focusing on the Apple technology stack. Since then, he's grown and established over 40 apps for name-brand Fortune 500 companies, including on iPhone, iPad, and Apple Watch.


Award Winning Apps
Xcode, Swift, SwiftUI, Objective-C, UIKit, HealthKit, WatchKit, iOS, tvOS...
Float Left Interactive
Xcode, Swift, Code Review, Android TV, Roku, iOS, Tizen, Git, GitFlow...
Modernizing Medicine
Xcode, Swift, Objective-C, UIKit, Subversion (SVN), Agile, Crashlytics...




Preferred Environment

Xcode, Swift, SwiftUI, Objective-C, UIKit

The most amazing...

...app I've developed is a cube of Jell-O that could listen to music and then dance to the beat.

Work Experience

President and Freelance Developer

2009 - PRESENT
Award Winning Apps
  • Launched over 25 native iPhone and iPad apps to iTunes.
  • Built a wide variety of apps using Xcode, Swift, UIKit, Objective-C, Core Animation, WatchKit, HealthKit, and many other native Apple technologies, as well as several web technologies.
  • Utilized Xcode, VS Code, Swift, Ionic, and other tools to build the apps, then Azure DevOps, AppCenter, or TestFlight, together with Git and CI/CD pipelines, to deliver the app directly to the device.
Technologies: Xcode, Swift, SwiftUI, Objective-C, UIKit, HealthKit, WatchKit, iOS, tvOS, iOS SceneKit, Interface Builder, CI/CD Pipelines, Git, GitFlow, Ionic, React Native, Figma, ARKit, Agile, Scrum, REST, GraphQL, iTunes Connect, App Store

Vice President of Engineering

2016 - 2018
Float Left Interactive
  • Brought life to the vision of our partner brands and delightful TV experiences to their audiences. Created unique and artful apps for the world's most prolific media brands, responsible for all aspects of engineering and production.
  • Drove the on-schedule delivery of professional services engagements.
  • Managed the creation of internal toolkits and external SaaS products.
  • Cultivated a team of talented software professionals.
  • Scoped projects, responded to RFPs, and established pricing.
  • Interfaced with the executive and production staff of clients and partners.
  • Defined departmental priorities and kept them front of mind.
  • Delivered the highest-grossing fiscal year in the company's history.
  • Launched several TV experiences, including NBC Sports, Sony, MLB, Red Bull, AMC, Ovation, and Catholic TV.
Technologies: Xcode, Swift, Code Review, Android TV, Roku, iOS, Tizen, Git, GitFlow, Source Code Review, Management, P&L Management, P&L Forecasting

Lead Scientist

2012 - 2015
Modernizing Medicine
  • Created applications that change the way doctors practice medicine.
  • Developed features in ModMed's flagship product, EMA for iPad, using Xcode and Agile process.
  • Evaluated and prototyped new technologies for inclusion in future product offerings.
  • Researched and prepared patent filings for submission to the USPTO.
Technologies: Xcode, Swift, Objective-C, UIKit, Subversion (SVN), Agile, Crashlytics, HockeyApp, WordPress

Tech Lead and Mobile Specialist

2009 - 2012
Crispin Porter & Bogusky
  • Launched numerous high-profile projects for name-brand clients.
  • Built software to create world-class, native mobile applications.
  • Lectured internally as a product trainer and externally as a mobile evangelist.
  • Conceived, engineered, and deployed native mobile and digital out-of-home products.
Technologies: Xcode, Objective-C, UIKit, Unity, Flash, Agile, REST, Adobe Flex, OpenCV, Core Audio, AudioUnit, ActionScript 3, Flash ActionScript, Subversion (SVN), Scrum, Photoshop CC

Software and Web Developer

2008 - 2009
Miami Herald
  • Developed award-winning iPhone applications for partner brands, such as the Miami Dolphins.
  • Built video and interactive features for MiamiHerald.com and Miami.com.
  • Combined Flash and Ajax to integrate our distinct look with outside vendor APIs.
Technologies: Xcode, Objective-C, UIKit, Flash, ActionScript 3, REST, Flash ActionScript, vMix, WordPress, Interface Builder, iTunes Connect, App Store, Ajax, HTML, CSS

Reese's Book Club

The companion application for Reese Witherspoon's Book Club. Built for iOS and Android using React Native. Nominated for a Webby People's Choice Award.

I was the tech director that liaised with the client and managed the team of developers.

Nike NbG

A native iOS application built for young women, containing a curated feed of products, lifestyle news, and influencer posts. App users are encouraged to weigh in on images and are offered the opportunity to tag them as buy, fave, or share through DM or social media. Hit the buy icon to be seamlessly moved to a store where the featured items are available for purchase.

Astro by PricewaterhouseCoopers

PwC's product group deployed a virtual assistant called Astro internally to help employees navigate back office tasks and 1,600 systems. A cross-platform app for iOS and Android, built on the Ionic framework and integrated with many disparate back-end services to make complex queries accessible via simple spoken language questions. Highly confidential partner data made security and testing a high priority. I was the director of mobile development, leading a hybrid onshore/offshore team on a 24/7 schedule, conducting code reviews, and performing release management.

Trulicity by Eli Lilly

Trulicity is a once-a-week injectable that can be life-changing for people living with Type II diabetes. The companion app was developed natively for iOS in Swift and Obj-C, and as an FDA-regulated Class II medical device, warranted the utmost care in the development, testing, and release. My role was as the lead developer and manager of a small offshore team.
2000 - 2001

Bachelor's Degree in Art and Design

Massachusetts Institute of Technology - Cambridge, MA, USA

1996 - 2000

Bachelor's Degree in Computer Science

Massachusetts Institute of Technology - Cambridge, MA, USA


Certified Scrum Master

Scrum Alliance


Certified Scrum Product Owner

Scrum Alliance


HealthKit, OpenCV, Core Audio


Xcode, Git, Subversion (SVN), Crashlytics, iTunes Connect, Interface Builder, Flash, Figma, Photoshop CC


SwiftUI, UIKit, iOS SceneKit, ARKit, Unity, React Native, WatchKit, Ionic, Adobe Flex, AudioUnit


Agile, REST, Scrum, Management, Azure DevOps


Swift, Objective-C, ActionScript 3, GraphQL, Flash ActionScript, HTML, CSS


iOS, HockeyApp, WordPress, Android TV, Tizen, tvOS, Android


Code Review, GitFlow, Source Code Review, App Store, Scrum Master, CI/CD Pipelines, Algorithms, Systems, Machine Vision, Architecture, Roku, Product Ownership, P&L Management, P&L Forecasting, Design, vMix, Ajax, Cordova, Natural Language Processing (NLP), Text to Speech (TTS), Augmented Reality (AR), Release Management, Generative Pre-trained Transformers (GPT)

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