Predictable growth.
Lower CAC.
Higher LTV.

I fix the funnel leaks that waste your budget — and get them working in under 90 days.

15+ years in SaaS, fintech, and ecommerce. I find where your funnel leaks money and fix it. Then I make sure your marketing spend actually pays off over time.

Currently taking on only 1 new client in Q3 2026.
I'll review your funnel before we talk — free, no pitch.
Field note

"Since we started working with Maciej, our business has undergone a significant transformation" — Jan Deruyck, Founder, Guud

Trusted by teams at
bunq Bitvavo Dyme Guud

Your growth engine isn't broken — it's under-optimized.

01

Most growth problems aren't about traffic volume — they're about value leakage at critical funnel stages. Funnels fail quietly in onboarding. Paid campaigns scale in one market but lose efficiency abroad. CRM flows run, but retention metrics don't move.

02

These leaks aren't obvious without structured data and a proven playbook. I don't just patch one channel — I re-align acquisition, activation, and retention so they compound.

03

The process: diagnose leaks → run measurable experiments → scale only what works. Every euro invested returns measurable value: lower CAC, higher LTV, faster payback.

04

My approach turns growth from guesswork into a predictable system — with outcomes that matter to your board, not just your dashboard.

What I deliver

Most of my work clusters around three outcomes: stronger CRM and lifecycle performance, better AEO and AI visibility, and clearer growth architecture. I still support acquisition and AI-powered execution where those outcomes compound — always tied to revenue metrics, not vanity activity.

/01
CRM & Lifecycle Systems

Hands-on implementation in Customer.io, Klaviyo, and Braze: segmentation, events and data logic, lifecycle triggers, retention, reactivation, and churn reduction.

/02
AEO & AI Search Visibility

Answer-engine optimization for AI Overviews, ChatGPT, Perplexity, and similar surfaces: schema and entity signals, answer-ready content structure, and commercial-page visibility.

/03
Growth Architecture & Measurement

Senior-level diagnostics across acquisition, retention, and experimentation: CAC, LTV, payback, attribution, and a prioritized operating rhythm.

/04
Acquisition & Performance Support

Paid and organic performance where it supports the system — channel efficiency, creative testing discipline, and ROAS — without letting media spend outrun retention or measurement.

/05
AI-Powered Marketing

Generative creative testing, smart bidding, and predictive workflows where they lift conversion and efficiency — not AI for its own sake.

/06
Conversion & Funnel Experimentation

Structured CRO and activation work on signup, onboarding, and revenue paths — hypotheses, tests, and fixes grounded in behavior and unit economics.

Where I help most

Most projects fall into one of three buckets. Pick the one that's closest to what's broken — engagement scope and price are tuned to the problem, not a tier.

/01

CRM & Lifecycle

6–12 weeks · €18–40k

Fix retention leaks, messy lifecycle logic, weak segmentation, and outdated CRM platforms. Customer.io, Klaviyo, Braze.

  • CRM implementation and cleanup
  • Lifecycle flows and trigger design
  • Segmentation, events, and data logic
  • Retention, reactivation, churn reduction
/03

Growth Architecture

12–16 weeks · €30–60k

For founders who need a clear POV across acquisition, retention, measurement, and experimentation — without hiring a full-time growth lead too early.

  • Funnel and growth system diagnosis
  • CAC, LTV, payback, channel logic
  • Acquisition + retention alignment
  • Operating rhythm and prioritization

Strategy and the screwdriver.

In short: I combine 15+ years of hands-on growth experience with senior strategic thinking. Unlike pure strategists, I execute directly in your tools. Unlike pure tacticians, I align every test with board-level metrics like CAC payback and LTV. You get both the strategy and the implementation, without needing to hire a full team.

  • /01 15+ years in SaaS, fintech, and ecommerce
  • /02 Ex-bunq, Bitvavo, Dyme — scaled growth to millions of users
  • /03 Proven lifts: +20–30% conversion, shorter CAC payback, higher retention
  • /04 Advanced stack: SQL, GA4, predictive analytics, attribution models
  • /05 Hands-on partner: no vanity decks, just execution and measurable results
"With me, you don't get more tasks — you get a growth system that compounds."
Field note

"Since we 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.

Jan Deruyck
Founder, Guud
Rebuilt growth process across paid, CRM, and CRO

What happens on a Strategy Call

30 minutes, free, scoped to your funnel. No deck, no pitch. You'll leave with three things you can act on this week — even if we never work together.

Before

I review your funnel

Send a Loom + Stripe/GA4/CRM read-only access (or just the Loom). I spend 45 minutes mapping your acquisition, activation, and retention before the call.

On the call

We talk leaks, not features

I'll show you the 3 specific points where you're losing the most money — with the numbers — and how I'd test fixes. You ask anything.

After

You get the notes

I send a 1-page summary: top 3 leaks, suggested experiments, rough scope if you want help. Yours to keep, share, or hand to anyone.

Promise
  • If we're not a fit, I'll say so on the call and tell you who is.
  • No follow-up nurture sequence. No "circling back."
  • If you'd rather email, send me a paragraph and I'll reply within 48h.

Field notes & teardowns.

All resources →

Common questions about working together.

/01What is a Strategy Call?+
A strategy session reviewing your funnel, retention, and acquisition, with clear next steps. It's a 30-minute focused conversation where I map your current bottlenecks and give you three things you can act on this week.
/02How fast can I see results?+
Most clients see lifts in 30–60 days, depending on funnel complexity and test velocity. Quick wins often appear within 2–3 weeks for simple optimization changes.
/03Do you implement campaigns?+
Yes, I work hands-on in ad accounts, CRM tools, and data stacks. I don't just advise — I execute the strategies I recommend to ensure they work.
/04Can you help in multiple countries?+
Yes, I've scaled campaigns in 40+ markets, handling localization, attribution, and ad ops. I specialize in cross-border rollouts that minimize risk while maximizing scale.
/05What industries do you specialize in?+
SaaS, fintech, ecommerce — subscription models and unit-economics work. My experience spans from early-stage startups to €100M+ revenue companies.
/06What's your typical engagement model?+
Engagements are scoped by problem and impact — most often CRM and lifecycle implementation, AEO and AI visibility programs, or growth architecture and measurement work. I also support ongoing senior partnership where the roadmap is clear. We start with a Strategy Call to align on priorities and the right depth of engagement.
/07Do you work with companies outside Europe?+
Absolutely. While I'm based in Europe, I work with companies globally. My experience spans North America, Asia-Pacific, and Latin America, with deep understanding of local market dynamics.
/08How do you measure success?+
Success is measured by sustainable growth metrics: improved CAC/LTV ratios, increased conversion rates, better retention, and profitable revenue growth. I provide detailed reporting and regular check-ins to track progress.
/09What tools and platforms do you use?+
I work with all major platforms: Google Ads, Meta, TikTok, LinkedIn, Customer.io, Braze, Klaviyo, and various analytics tools. I'm platform-agnostic and choose the best tools for your specific needs and budget.
/10How do I know if my site is optimized for AI search?+
Use my free AEO Score Tool to check how well your content performs in AI-powered search engines like ChatGPT and Google AI Overviews. The tool analyzes entity recognition, evidence quality, and experience signals, then provides a tailored fix plan.

Let's fix your funnel — your way.

Book a quick intro call or send me a short brief. I'll review your funnel and reply with next steps — no fluff, no hard sell.

Or — send a brief

Tell me about your growth challenge

Share a few details about your product, traffic, and where you think the funnel is leaking. I'll reply personally within 48h.

Book a Free Strategy Call