Twenty years of CTO and senior engineering work. Currently co-founder and CTO at HeyRosie. Previously CTO at CartHook (acquired by Shop Circle) and head of engineering at Rally. Founder of Auctoritas.
A short list of the patterns I see most often when founders bring me in.
You have a roadmap and an engineering team. Cadence is slow, scope creeps, AI experiments never make it out of branches.
Prototype works, production breaks. You need someone who has lived through 0 to 1, 1 to 100, and the years that follow, without a six-month onboarding tax.
Every engineer uses AI tools differently. No shared playbook, no measurable lift, no clear path from a working demo to a working product.
Three shapes of engagement, depending on what you actually need. All hands-on, all senior.
Full-stack development from concept to production. Web apps, APIs, mobile, microservices, built to scale and built to be handed off.
Voice AI, agents, and automation that move the metric. From RAG to MCP servers to in-house LLM pipelines, production-grade and observable.
Tech strategy, architecture, hiring, fractional CTO work. Senior judgment without the full-time hire.
Entrepreneur and CTO with 20+ years of building products, leading teams, and wearing every hat a startup demands.
As CTO at CartHook, I built the product that pioneered post-purchase upsells for Shopify. It processed over $1.5B in merchant transactions before the acquisition by Shop Circle.
Led engineering at Rally, a Series A headless checkout platform, with a 15-person engineering team and ambitions beyond Shopify.
Currently co-founder and CTO at HeyRosie. We build AI voice and telephony products that have handled over 3M calls for 2,000+ businesses.
I also run Auctoritas, a small studio I work through when I take on outside engagements. No agency layer, no juniors learning on your dime. Just senior engineering output, end to end.
Language-agnostic, tool-obsessed. I pick what fits the problem, not what's trending.
Collect commits, dodge bugs. How long can you survive?
← → Move SPACE Start / Restart
I take on a small number of engagements at a time. The fit I look for: founders who need senior hands writing code, shipping product, and making technical calls.