Jennyfer St. Louis — Mobile Developer & Designer

Good ideas,
brought to life.

I build native mobile apps for iOS and Android under Good Folk Digital — from concept to the app store. I care about craftsmanship, clean architecture, and making things that feel great to use.

See my work
Selected work
Screenshots go here
iOS & Android — 2026

Whimzy

A cross-platform party card game app built entirely solo under Good Folk Digital. Whimzy delivers a unique, shuffled game every time — Never Have I Ever, Truth or Dare, Would You Rather, and more. Players can customize themes, filter content for any crowd, and unlock new cards through weekly mini-games.

Card artwork was commissioned from indie Etsy artist Huxmay. All app UI, card assets, and game architecture were designed and developed by me.

SwiftUI Kotlin Firebase Auth Cloud Firestore Cloud Functions StoreKit 2 Google Cloud HTML / CSS / JS
Visit whimzygame.com App Store Google Play
Role Sole designer & developer
Platforms iOS, Android
Launched January 2026
Backend Firebase & Google Cloud
Screenshots go here
iOS & Android — 2020–2021

Good Cheer Deliveries

A native delivery app for Good Cheer Deliveries, a London, Ontario business where I worked for over 15 years. I designed and built the app from scratch for both platforms, launching Android in September 2020 and iOS in May 2021.

Version 2 introduced a full product catalogue with pricing. When a customer places an order, a notification email is sent directly to the office. A separate C# console tool I wrote reduced a recurring monthly admin task from several hours down to minutes.

SwiftUI Java Firebase Auth Realtime Database Cloud Firestore Cloud Functions Crashlytics C#
Get in touch
Role Sole designer & developer
Platforms iOS, Android
Launched Android 2020 • iOS 2021
Client Good Cheer Deliveries, London ON

About

Jennyfer
St. Louis

I'm a mobile developer and UI/UX designer based in London, Ontario. I hold two advanced, co-op endorsed diplomas from Fanshawe College — Computer Programmer Analyst and Executive Office Administration — and have been building software professionally ever since.

Full-time I'm a Mobile Developer at PSD Citywide, working on native iOS and Android apps within a cross-functional team. Part-time I teach at Fanshawe College, running courses in Mobile Development, UI/UX for Mobile Apps, and JavaScript. And in the hours between, I run Good Folk Digital — building and shipping Whimzy, and taking on freelance work for clients who have good ideas that deserve to exist.

Past experience includes native mobile development at ZTR Control Systems, a UI/UX research contract at Orbit Engineering, and co-ops at TD and Digital Echidna doing full-stack and agile web work.

I care about technology, UI/UX, women in STEM, mental health, and building things that are genuinely well-crafted — human-made, accessible, and designed to last.

Education
Computer Programmer Analyst Fanshawe College — Advanced Diploma, Co-op • 2016–2019
Executive Office Administration Fanshawe College — Advanced Diploma, Co-op
UI/UX Design BCIT — Associate Certificate, in progress
Experience highlights
Mobile Developer — PSD Citywide Jun 2020–present
Part-time Professor — Fanshawe College Apr 2022–present
UI/UX Research Associate — Orbit Engineering Feb–Aug 2023
Mobile Developer — ZTR Control Systems Feb 2019–Apr 2020
Solutions Developer (Co-op) — TD May–Aug 2018
Web Developer (Co-op) — Digital Echidna 2017–2018