Gregory Johns

Full-stack developer who builds and experiments with AI

Orlando, Florida, EST

GJ

About

Full-stack developer focused on integrating AI into real products. Self-taught engineer who learns by building. Experience with TypeScript/React, Node.js, and modern AI tools including OpenAI, Claude, and Gemini APIs. Currently exploring Model Context Protocol and AI agent development while modernizing legacy systems at scale.

AI Tools

Claude Code
Cursor
OpenAI Codex
Repo Prompt

Favorite Models

Work Experience

Stellar MLS
Remote

2024 - Present

Software Developer

• Built a prototype MCP server with SSO authentication (Ping) that enables property search via Bridge API. Early exploration of agentic workflows for MLS operations.
• Developed a chatbot prototype using Vercel AI SDK and OpenAI Vector Store, demonstrating improved support query capabilities.
• Internal AI advocate: run workshops on prompt engineering and AI tools, help colleagues adopt new technology, authored AI usage policy framework.
• Built an internal employee recognition app (React/Next.js) that sees active daily usage across the company.
• Modernized legacy systems into React/Next.js platforms, enabling future AI integration.
• Experimenting with Anthropic, OpenAI, and Gemini APIs for proptech applications.

Self Employed
Remote

2017 - present

Full Stack Developer

• Building AI‑powered experiments: voice‑driven MLS Add/Edit tool (Expo + Whisper/OpenAI), and autonomous form‑filling agents via MCP + Playwright.
• Implement growth loops and analytics: Stripe monetization, A/B testing, and SEO—leveraging prior SEM expertise to acquire users profitably.
• Help founders in my network with AI strategy, MCP server implementation, and cost optimization.

Ring Ring Marketing
Remote

2020 - 2021

Senior Client Relations Manager

• Devised and executed strategies for website optimization, including paid search, SEO, and content marketing.
• Implemented PPC optimization techniques to maximize ad spend efficiency.

Omicron Media

2019 - 2020

SEM Manager

• Managed and executed search marketing campaigns for 10 B2C SaaS Usenet brands with a yearly ad spend of $1MM.
• Regularly conducted A/B testing of ad copy and landing pages, optimizing performance and enhancing conversion rates.
• Utilized advanced analytical tools to track campaign performance and implement improvements.

Pearson

2016 - 2018

Search Marketing Specialist

• Managed comprehensive search marketing campaigns with an annual budget of $4.3MM, focusing on paid search.
• Successfully optimized campaign strategies, leading to enhanced performance and meeting key marketing objectives.

Education

Rollins College Crummer Graduate School of Business

2014 - 2016
MBA

University of Florida

2009 - 2013
Bachelor of Science in Zoology

Skills

AI & Agent Development

Multi-Agent Orchestration
Claude Code & Anthropic APIs
Model Context Protocol (MCP)
Prompt Engineering
OpenAI / Gemini APIs
Vector Databases

Web Development

TypeScript
React / Next.js
Node.js
Tailwind CSS
Supabase

Languages

TypeScript
Python