Justin Willemsen
Software
Developer

About

Hi! I'm Justin.


A computer science student with experience designing and building iOS apps using SwiftUI. I successfully launched two apps, QuitClock and Army Fitness Pro, to the App Store and I built the guided workout feature for a fitness app as part of a collaborative course project.


I spent over 13 years in the Army, where managing systems, personnel, and resources helped me develop a strong combination of technical, organizational, and leadership skills. I graduate in December 2026 and am actively seeking an iOS or mobile engineering internship for Summer 2026.

Projects

Army Fitness Pro app screenshot

Army Fitness Pro

iOS app to calculate Army Fitness Test scores and body composition standards

Language: Swift

Frameworks: SwiftUI, SwiftData, StoreKit

QuitClock app screenshot

QuitClock

iOS app that helps users track progress since quitting a bad habit

Language: Swift

Frameworks: SwiftUI, SwiftData, StoreKit

Fitness app screenshot

Mobile Fitness

iOS app focused on ease of use for individuals new to fitness

Language: Swift

Frameworks: SwiftUI, SwiftData, Combine, AudioToolbox

* Group project. I was project manager and developed the guided-workout feature.

Contact

[email protected]
in/jstnwll
jstnwll
@jstnwll.com