Marc von HolzenServices
Align, evolve, and elevate your team with values-driven systems.
AI has radically reduced the cost of producing code, not the cost of deciding what to build
As code generation accelerates, teams architectural drift, tool sprawl, or output without progress.
Agentic Engineering gives teams the structure and judgment to move fast without losing direction.
Why Work With Me
I’ve spent 30 years building software at every level — from kernel features to consumer apps at 80M+ monthly active users. I know what good architecture looks like at scale, and I know what happens when it’s neglected.
I’ve also led engineering teams up to 100 people. I understand the organizational pressures, the tradeoffs, and how to get people aligned without slowing them down.
I don’t just optimize for output. I help teams build shared mental models. So the judgment you develop with me stays in the organization after I’m gone.
My approach is grounded in a set of practices I’ve developed and refined over 30 years — built on first principles rather than trends. Your team will keep improving after I’m gone.
Ready to Work Together?
Let's discuss how my experience can help your organization.
Get In Touch
Latest Blog Posts
Let Your Agent Organize Your Workflowy Inbox
I wrote a skill that goes through my inbox, follows my rules to propose locations for each node, and learns from where I eventually place them.
Workflowy CLI: Group Search Results by Parent, Path, Date
Workflowy’s native search squishes deeply nested results to the right until they’re unreadable. The CLI now groups results by path, parent, date, or tree — and you can paste them right back into Workflowy.
Electric Vehicles (EV) vs Combustion Engine (CE): A Lifecycle Emissions Analysis
A viral email claims EVs aren’t green. The numbers tell a different story: after 3 years of driving, an EV has offset even the dirtiest battery manufacturing estimates.