About this site
I'm a Fractional CTO advising startups and PE-backed companies on business strategy and technical operations. I help engineering organizations adopt AI development tools safely and effectively. I've been building with AI coding agents for over a year now, and we've hit an inflection point. These tools are no longer optional for developers, product managers, or engineering leaders. I train teams to adopt these workflows and build tools that make the process repeatable.
What I Do
I work with founders and CEOs on two fronts:
Technical leadership. Business strategy, engineering operations, and scaling teams. I've led multiple 3-5x revenue growth initiatives and company turnarounds that resulted in 40-60% faster feature delivery and 22% faster time-to-market.
AI development adoption. I train engineering teams to use AI coding agents effectively. Not a weekend workshop. I build the tooling, establish the workflows, and work alongside the team until the new way of working sticks. I'm shipping full applications in hours or days that used to take months, and I help teams get there too.
What I'm Building
wt: Manages git worktrees for parallel AI development. I run 3-4 AI coding sessions simultaneously on the same repo with this tool.
gsi: Scaffolds new Go projects with standardized libraries, documentation, and CI/CD. AI sessions start productive instead of spending tokens figuring out the project structure.
rag-tutorial: A from-scratch Retrieval-Augmented Generation tutorial in Python. I built this for a development team I was training on AI tools.
FDSN Portal: Full-stack Go and React application for seismic station metadata. Single binary, embedded UI, interactive maps, waveform visualization. Built in days with AI-assisted development.
DBSnapper: Database snapshot and sanitization tool for development and testing environments.
Background
25+ years building and scaling engineering teams at SaaS companies. First employee and VP of Engineering at SendGrid, where I helped scale from zero to $65M ARR. The engineering team was featured in Bessemer Venture Partners' Top 10 Laws of Cloud Computing. Helped run the first two Techstars Boulder classes and ongoing mentor. Started my career writing embedded C and C++ for satellite missions and telecom SONET multiplexers.
- GitHub: https://github.com/joescharf
- LinkedIn: https://linkedin.com/in/joescharf