Leon Johnson

Stop Paying for Software That Doesn't Fit

AI Strategy & Custom Apps

I build custom AI apps tailored to your exact workflow. They replace expensive subscriptions, automate the tedious stuff, and actually work the way you do.

Book a Free Consultation See How It Works

What I Can Do for You

01

Hyperspecific AI Apps

Custom-built apps designed for your exact use case. The kind of tool no off-the-shelf software will ever offer. Replace costly SaaS subscriptions with something that actually fits.

02

AI Strategy

Not sure where AI fits in your business? I help you cut through the hype, identify the workflows worth automating, and build a practical roadmap to get there.

03

Workflow Automation

Email triage, document processing, data pipelines. I build AI-powered automations that handle the repetitive work so your team can focus on what matters.

04

Training & Workshops

Hands-on sessions for your team covering prompt engineering, AI-assisted development, building with AI coding tools, and understanding AI security risks.


How It Works

Every engagement follows a straightforward process. We find what's slowing you down, figure out where AI fits, build it, and get it running on your terms.

01
🔍

Identify

We find the workflows costing you the most time, money, or frustration. The ones where generic software falls short.

02
🗺

Map

I document your current process step by step and pinpoint exactly where AI can make the biggest impact.

03
🛠

Build

I build your custom app using AI-assisted development. Fast, iterative, and built to your exact spec.

04
🚀

Deploy

Your app runs on infrastructure you control: cloud, private server, or your own hardware. Your data stays yours.


What People Build

These are the kinds of problems hyperspecific AI apps solve. Things you do every day that generic software was never designed to handle well.

📈

Custom Reporting

Dashboards and reports tailored to your data, pulling from the exact sources you use, formatted the way you need.

📧

Email & Inbox Automation

AI agents that screen, sort, and pre-draft responses to your email based on your rules and communication style.

📄

Document Processing

Turn receipts, invoices, contracts, and forms into structured data. Works across formats, languages, and regulatory requirements.

🔒

Security Tooling

AI-powered vulnerability scanning, threat analysis, and automated security workflows built for your specific environment.

📅

Scheduling & Coordination

Smart assistants that manage calendars, coordinate across time zones, and tell you what to focus on each day.

💡

Your Idea Here

Have a workflow that frustrates you? A process you've been procrastinating on? Something you can't do without the right tool? Let's talk.


Why Me

2024 – Present
AI Consulting, Independent
Independent

Building custom AI apps, workflow automations, and strategy consulting for businesses adopting AI. Shipped dozens of hyperspecific tools for clients and personal use.

2024 – Present
Offensive Privacy Lead
TikTok (USDS)

Leading offensive privacy testing and vulnerability research. Deep experience with AI/ML platform security from the inside.

2023 – 2024
AI Security Researcher
RunSybil

Researched AI security threats and developed automated security testing methodologies for AI/ML systems.


Tools I've Built

gitwho
GitHub profile intelligence tool. Analyzes contributions, tech stack, and activity patterns to build a developer profile. Try it live →
Voice
Local speech-to-text for macOS. whisper.cpp + Ollama/OpenAI/Anthropic for AI text cleanup.
cloudlamma
One-command local LLM deployment via Ollama + Cloudflare tunnels. Zero to internet-accessible LLM.
oclient
CLI client for Ollama's local LLM API. Lightweight Python tool for interacting with local models.
gpt_tools
AI-assisted pen testing and red team tools. Security tooling built with ChatGPT.
claude_hunter
Scans GitHub repos to find where Claude AI has contributed code.
jwtmap
JWT vulnerability mapper using OpenAI API for analysis.

Media & Talks

2025
Xygeni SafeDev Talk
AI-generated podcast

Let's Build Something That Actually Fits

Need a custom AI app, want to automate a painful workflow, or just trying to figure out where AI makes sense for your business? Let's have a conversation. No jargon, no sales pitch.