Companies I've worked with
The problems I see
Your product should be growing faster. But most teams still can't pinpoint what's blocking it.
Customers are leaving or not converting, and most teams can't pinpoint why. The data shows churn, abandonment, or stagnating adoption. But the cause isn't visible from inside.
Resources are being spent on the wrong things. The team is working. The roadmap is full. But the work isn't connected to what's actually blocking growth. Features ship. Metrics don't move. Budget burns.
The gap between "what we think the product is" and "what users actually experience" widens. Leadership sees the intended product. Users experience the real product. This gap grows silently over time because nobody is doing the forensic work to expose it.
What I do
Not a consultant.
A builder who thinks.
I figure out what's blocking your product's growth. Then I build the fix. From customer evidence to shipped solution.
Context engineering.
Structure scattered customer signals into evidence your team can act on. Support tickets, call recordings, interviews, and CRM notes, organized and prioritized in one system.
Hands-on building.
Diagnose the problem and build the fix. No handoff between insight and execution. Prototypes, workflows, positioning, whatever shape it needs.
System transfer.
Transfer the capability to your team. They inherit a working system and keep making evidence-based decisions after the engagement ends.
Case studies
Complex configurator overwhelmed buyers
The problem
A 47-step configurator forced buyers offline. They abandoned the digital flow and called sales instead, slowing down deals and blocking self-service.
What we did
We found where cognitive load spiked and redesigned the logic with progressive disclosure. Users saw fewer choices at each step and progressed faster.
Procurement platform blocked by poor discovery
The problem
60% of orders were abandoned on their eProcurement platform. Product discovery was broken and the ordering process was clunky, so buyers gave up and called instead.
What we did
We split the flow by user type. Engineers got visual product search. Procurement got bulk upload. We removed validation blocks that slowed checkout. Simple and fast.
Patient onboarding took too long
The problem
Getting a first report from their platform took 3 hours. Clinics couldn't show value fast, so they didn't expand into new locations and growth stalled.
What we did
We flipped the order. Generate the first report fast with basic data. Configure everything else after. Clinics see value in minutes, not hours.
Scientists couldn't compare products
The problem
Supplier data was fragmented across the marketplace. Scientists couldn't compare products side-by-side or find what they needed, so they shopped elsewhere.
What we did
We built advanced filtering and side-by-side comparison designed for how scientists actually search and buy. Fast and reliable.
The engine behind the work
The decision system for product workers.
Built for B2B software companies, where placing the right bets is still a gamble. Capture customer signals, attach them to real customers and their ARR, and always know what to build, defer, or kill.
Validated against senior PM decisions
25 years of building what matters.
Client work
| Company | Revenue | Role | Key Outcome | Duration |
|---|---|---|---|---|
| Endress+Hauser | €3.7B | Product Growth | CES 3.53→1.47. Sales freed 30%. | 2025–now |
| KSB (via bitgrip) | €2.9B | Interim Product Lead | +€10M digital revenue. Orders +90%. | 3 years |
| ZAGENO | €90M | First Product Guy | Seed to Series B. 1.4M products. | 2 years |
| Klenico Health | €5M ARR | Interim Head of UX | First report 3h→20min. | 1 year |
| Sauer Systems | — | Product Growth Lead | Product and growth ownership. | 1 year |
| DER Touristik / REWE | — | Interim UX Lead | Built internal UX practices. | 1 year |
| SAP | — | Market Intelligence | Campaign and lead gen optimization. | 2 years |
Own products
| Product | What it is | Proof |
|---|---|---|
| Arcate | Product decision system for B2B | Live at arcate.io. MCP server. Fermi scoring. |
| Akeetsu | IoT smart mosquito trap | Wing-beat recognition. Prototype + test commerce. |
| Messerheld | Repair-as-a-Service for kitchen knives | 5.0 reviews. Falstaff + Business Punk. |
| Space Bonding | Evidence-based SaaS for urban development | EXIST-funded. 7 years. Origin of Arcate methodology. |
Next: Speaking of (Building with AI).
Productlab Conference
Three days conference for AI-native Product Managers, PMMs, & Leaders. Alongside senior practitioners from Linear, Stripe, Miro, Personio, Parloa, n8n, and Reforge.
Deep Dive · 17 Sept · 15:00
For product builders: Let's build.
A field report from shipping a full SaaS product alone with AI as infrastructure, bridged with 20 years of B2B product work from the C-suite. Most people talk about the product builder. This is what it actually looks like.
15 17 September 2026 · CIC Berlin