Joel Grayson's Portfolio

Edit Time

Desktop app that enables users to change files' date creation properties, which was previously impossible without the terminal.

Impact: 7,000 users and $3,000 in revenue

Tech: Swift/SwiftUI, StoreKit, Bash

Focus

Helps users enter the flow while writing in Google Docs.

Impact: 1,000 users

Tech: TypeScript, HTML/JS/CSS, Perl, Bash

Homework Checker

Helps students keep track of completed assignments, so they don't miss any.

Impact: 3,000 users

Tech: TypeScript, OOP, Gulp, HTML/JS/SASS

Buseroo

Website and mobile app for students and teachers to find which school bus leads to any address. Allows schools to sign up and manage their bus route data in admin page. Example use cases: finding a bus to doctor's appointment, aunt's house, or museum.

Impact: 1,000 searches

Tech: TypeScript, Next.js/React, Prisma, Swift/SwiftUI, GCP, OAuth

Try Web Demo

Venderoo

Designed & built vending machine.

Impact: over a hundred snacks sold

Tech: Arduino, C++

Self-Driving Car

In 36 hours, turned a 2018 Honda into a partially self-driving car with team at TreeHacks (Stanford's Hackathon), winning 1st Place in the NVIDIA Track (Edge AI).