Stephen Campbell

software developer / full stack developer🇨🇦

chemical engineer turned programmer solving complex problems through intelligent automation and ai-powered solutions.

about

tldr; mostly self-taught by shipping things on the internet

passionate about profitable saas apps, prompt engineering, and building intelligent systems that solve real problems.

fascinated by the intersection of technology and human potential — creating tools that amplify productivity and creativity.

recent work

Little ExitsLittle ExitsSaaS Platform

Production saas marketplace for digital product acquisitions. Next.js 13+, TypeScript, Firebase, Stripe, and real-time Globe.gl analytics across 150+ countries.

The Maker MindsetThe Maker MindsetBook

The peculiar attributes of the modern day inventor

CheckoutKeysCheckoutKeysB2B SaaS

Automated license key management for digital products. React, Node.js, Stripe checkout with webhooks, and SendGrid for instant key delivery.

ExcelBotExcelBotAI Tool

AI-powered Excel assistant generating formulas and VBA from plain language. Next.js, OpenAI GPT integration, and responsive mobile-first UI.

Rent Fair OntarioRent Fair OntarioData Platform

Rental market comparison using Statistics Canada data. Next.js, Vercel deployment, and data visualization helping Ontario residents compare rent to CMHC averages.

PreRevenuePreRevenueStartup Evaluation Tool

Pre-revenue startup evaluation with instant AI analysis. Next.js, TypeScript, and OpenAI GPT trained on Little Exits marketplace data from 200+ successful exits.

Parking KioskParking Kiosk Management System3D Demo

Interactive 3D parking kiosk simulation with Three.js and WebGL. Ticket management, payment processing, gate automation, and real-time vehicle controls.

skills

Languages & Frameworks

TypeScript & JavaScript
Next.js 13+ & React
Python, Node.js & Django
PHP, HTML5 & CSS3

Cloud & Backend

Firebase (Auth, Firestore, Functions)
Supabase & PostgreSQL
RESTful APIs & Serverless
SQL & Database Design

Frontend & Visualization

React Hooks & Tailwind CSS
Three.js, Globe.gl & WebGL
Bootstrap & Responsive Design
Mobile-First Development

Integrations & APIs

Stripe (Checkout, Webhooks)
SendGrid & ConvertKit
Google Analytics 4 & OpenAI GPT
Google OAuth & Webhooks

Developer Tools

Git (GitHub, GitLab) & CI/CD
VS Code, Cursor & Claude Code
Vercel & Agile/Scrum
TDD, Unit Testing & Chrome DevTools

Accessibility & SEO

WCAG / AODA Compliance
WAVE Testing
Google Search Console & Schema Markup
Core Web Vitals Optimization

experience

McMaster University

WordPress Developer

2024 - Present

Custom WordPress solutions with AODA compliance, ACF components, and GitLab/GitHub workflows for internal and external clients

WordPressPHPHTML5CSS3JavaScriptBootstrapACFGitWAVE

Little Exits

Full Stack Developer

2021 - Present

Production SaaS marketplace. Next.js 13+, TypeScript, Firebase migration from Bubble (50k+ records), Stripe payments, and Globe.gl analytics dashboard

Next.jsTypeScriptReactFirebaseStripeThree.jsGlobe.glSendGridVercel

Campbells Investment LLC

WordPress Developer (Freelance)

2018 - 2022

Freelance WordPress development across music, education, and e-commerce industries

WordPressPHPHTML5CSS3SEOGoogle Analytics

Jamalco, Bauxite Refinery

Process Engineer

2015 - 2019

Full-time process engineering at bauxite refinery prior to career transition into software development

Process EngineeringChemical EngineeringOperations

toolkit

Current Stack

Next.js 13+, React & TypeScript
Firebase, Supabase & PostgreSQL
Cursor, Claude Code & VS Code
Vercel deployment & CI/CD
Stripe, SendGrid & OpenAI GPT

Specializations

Production SaaS marketplace development
Payment systems & fraud prevention
Database migration & serverless architecture
SEO, schema markup & Core Web Vitals
Real-time data visualization (Three.js, Globe.gl)

contact

let's build something together.