
I Fix Leaky Funnels, You Get More Sales
Conversion Funnel Optimization for Ecommerce, SaaS & DTC brands
Growth & Conversion Specialist | Amsterdam, NL
15+ years helping fintech, SaaS, and ecommerce brands scale. Ex-bunq, Bitvavo, Dyme. I turn leaky funnels into revenue engines using data, UX, and AI.
Your funnel isn't broken. It's just full of holes.
Traffic is flowing in, but conversions begin to level off. Retention suffers. Budget gets wasted.
I join you to spot the crack in your funnel — and plug them. From UX & data to acquisition channels & CRM, I optimise what counts: your sales.
Trusted by





What I Deliver
- 📊 Funnel Simplification (That Is Data-Driven!)
No fluff. Just clear, structured conversion wins across your entire growth engine. - 🔎 User Research + Behavioral Insights
Get visibility into who's dropping and why — and how to convert more of them. - 🚫 Remove Conversion Killers
I unblock the UX snags, the messaging mismatches, the data fuckups that stop users from buying. - 📊 More Intelligent Acquisition Channels
Cut waste. Improve ROAS. Create repeatable growth processes. - ⚙️ AI-Based Execution Support
You receive insights and hands-on fixes — underpinned by automation and over 15 years of growth experience.
Work With Me
✅ Conversion Funnel Fix – €4,999 (3 Months)
- Grab Your High-impact growth sprint to get unstuck in your sales.
- Funnel mapping, analytics & UX teardown: What's the difference?
- Enhanced acquisition, activation and retention
- Data-informed hypotheses & A/B testing plans
- Weekly check ins & full implementation support
- Low fluff, revenue and results focused
💼 Ongoing Growth Partnership – EUR 1,999 / month
- For scale-ups and ecommerce brands looking for ongoing growth assistance.
- Monthly growth plan & its execution
- Cross-team support (acquistions, retained, cro, crm)
- Slack + async support
- Quarterly mini-reviews and re-prioritization of goals
Why Me?
- 15+ years experience in growth, performance, and data
- Growth driver for fintech, SaaS, and ecommerce brands
- Ex-bunq, Bitvavo, Dyme – scaled 10M+ user funnels
- Built & led high-performing growth teams
Client Feedback

"Since I started working with Maciej, our business has undergone a significant transformation. He introduced me to the essential principles of growth processes and offered hands-on support with specific projects and ideas that helped us regain momentum. He has the ability to consider all aspects, from team dynamics and company culture to processes, platforms, and technology. I highly recommend him."
It's Time to Have Your Funnel Print $$$$
Ready to stop guessing and start growing?
Contact Book a Free Discovery CallContact Me
Book a Free Discovery Call
Prefer to talk? Book a free discovery call to discuss your funnel challenges.
Book a call