Full-Stack Developer · AI Application Engineer

I build and ship
production software.

I design, build, and run web applications end to end — custom PHP/MySQL architecture, payment systems, and AI integrations. Two live platforms with real users and real revenue running through them.

PHPMySQLJavaScriptWordPressWooCommerceStripe APIClaude APIAmazon SESPWA

Selected Work

Two platforms I architected and built end to end. Both are live and in daily use.

Coaching SaaS

The Pro Fit Prep

A multi-user coaching platform where coaches build training and nutrition programs and clients access them through a portal and installable app.

  • ✓AI assistant on the Claude API with per-client context injection
  • ✓Stripe subscriptions with webhook recovery and self-healing access sync
  • ✓15+ custom MySQL tables with versioned, self-healing migrations
  • ✓7 program builders with real-time macro calculation and PDF export
Business Platform

Truss Tender

A proposal and RFP management platform for construction firms — client portal, document systems, and an app that sends proposals and invoices.

  • ✓Role-separated portal — client and staff dashboards with independent auth
  • ✓Document vault with managed upload, storage, and retrieval
  • ✓Agreement system with an audit log of executed agreements
  • ✓Installable PWA that sends proposals and invoices from a phone

What I Work With

Backend

PHP, MySQL schema design, versioned migrations, AJAX & REST endpoints, cron jobs, ETL and bulk data imports, third-party API integration.

AI & LLM

Anthropic Claude API, chatbot development, prompt engineering, context injection and retrieval, AI-assisted development workflows.

Payments

Stripe subscriptions, webhooks, billing portals, dunning and failed-payment recovery, WooCommerce, access gating.

Frontend

JavaScript, jQuery, responsive design, Progressive Web Apps, UI/UX, wireframing and prototyping, accessibility.

Infrastructure

Amazon SES, cPanel, phpMyAdmin, Git, DNS, performance optimization, Core Web Vitals.

Also

Technical writing and documentation, SEO and schema markup, Adobe Creative Suite, government RFP/RFQ response.

Let's build something.

I'm currently open to full-time and contract development roles. The fastest way to see how I work is to read the code.

Christian Garrett · Winter Park, FL · cgarrettgraphics@gmail.com · LinkedIn