AI Systems Architect • Full-Stack Engineer • SaaS Builder

I build production-ready AI and SaaS systems for real businesses.

I design and ship full-stack platforms that combine modern UI, secure cloud infrastructure, payments, automation, AI workflows, and business operations.

View Projects Hire Me
AISystems Architecture
SaaSMulti-role Platforms
CloudFirebase • FastAPI • Netlify
PaymentsStripe • Square • PayPal

About

Founder & Principal Software Engineer at Stemn Enterprise

I am a self-taught software engineer and certified AI Systems Architect focused on building useful, deployable products. My work spans retail automation, restaurant delivery, salon booking, event ticketing, AI image workflows, and business SaaS platforms.

Featured Work

Projects built with real business use cases

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ShelfLink AI

Enterprise AI retail platform for specialty grocery stores. Automates product catalog creation, POS sync, inventory workflows, and marketplace distribution.

  • AI catalog enrichment
  • Square/Clover POS sync
  • Multi-tenant SaaS architecture
Read Case Study →
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Restaurant Delivery Platform

Full ordering system with customer, restaurant, driver, and admin portals, including order lifecycle management and payment workflows.

  • Role-based dashboards
  • Driver workflow
  • Real-time order tracking
Read Case Study →
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Event Ticketing Platform

QR-based event platform with secure checkout, ticket generation, scanner validation, analytics, and duplicate-entry prevention.

  • QR ticket validation
  • Payment integration
  • Check-in dashboard
Read Case Study →
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Salon Booking SaaS

Luxury appointment platform with scheduling, deposits, admin management, customer lookup, and responsive mobile-first booking UX.

  • Stripe deposits
  • Booking rules
  • Admin dashboard
Read Case Study →

Architecture

How I think about production systems

Client Apps
React / Mobile Web
API Layer
FastAPI / Functions
AI Services
OpenAI / Automation
Data Layer
Firestore / PostgreSQL
Integrations
Stripe / Square / Clover
Ops
Auth / Logs / Deploy

Technical Case Studies

Each project explains the problem, architecture, and engineering decisions.

ShelfLink AI Case Study Restaurant Delivery Platform Case Study Event Ticketing Platform Case Study Salon Booking SaaS Case Study

Technical Stack

Tools I use to ship

JavaScriptTypeScriptPythonReactNext.jsFastAPIFirebaseFirestorePostgreSQLStripeSquareCloverOpenAI APIOAuthREST APIsNetlify

Contact

Available for remote AI, full-stack, and SaaS engineering roles.

Email: greg2g7@icloud.com

Phone: 978-996-2873