I'm Matys — a freelance Growth Engineer in Paris. I turn your visitors into customers through CRO, code, and automation.
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Every company I work with faces one of these blockers. Here's how I fix them.
Your site gets traffic but doesn't convert enough. I dissect every step of the user journey — landing pages, funnels, checkout — to find what's holding visitors back. A/B tests, UX research, rapid iterations: we turn existing traffic into real revenue.
Your team wastes hours on manual tasks that could be automated. Lead routing, scoring, nurturing, CRM sync — I build the Python and n8n pipelines that keep your RevOps engine running while you sleep.
You need a site that doesn't just look good — it performs. Webflow for speed, Next.js for power, Shopify for e-commerce — every pixel is designed to convert, not just to impress.
You're making decisions on gut feeling because your data is incomplete or poorly structured. GTM, GA4, HubSpot, Salesforce — I set up server-side tracking and dashboards that turn your hunches into certainties.
Behind every metric, there's a story. A problem identified, a solution built, a result measured.
annual growth
Skello
conversion rate increase
Le Dressing de Paolina
visits generated from scratch
B&Inside
countries deployed
Skello International
Every project starts with a real problem. Here's how I solved them.
A simple observation: marketing teams spend thousands on Meta Ads without knowing which leads actually close. I built LinkMeta to solve that — a SaaS platform connecting Meta Ads to HubSpot, using AI to predict which leads will convert. Deployed across 7 countries.
When I joined Skello, the website wasn't matching the company's ambition. No reliable tracking, manual RevOps, and a corporate site that wasn't converting. I rebuilt everything — Webflow redesign, n8n automations, deployment across 7 European markets. Result: +40% annual growth.
Paolina had traffic and a loyal community, but her conversion rate was stuck. The problem wasn't the product — it was the buying experience. Complete Shopify redesign, checkout funnel rewrite, and tracking setup to understand where customers were dropping off. +38% conversion within weeks.
B&Inside didn't exist. No brand, no site, no traffic. We started from a blank page: visual identity, Shopify store, and an aggressive acquisition strategy on Google Ads and Meta Ads. Six months later, 36,000 visits and a ROAS that was funding the growth.
A Norman plasterwork artisan with exceptional craftsmanship but zero online presence. The challenge: translating a centuries-old craft into a premium digital experience. Showcase site, e-commerce, SEO technical blog, and local search — so customers could finally find him where they're looking.
A simple observation: marketing teams spend thousands on Meta Ads without knowing which leads actually close. I built LinkMeta to solve that — a SaaS platform connecting Meta Ads to HubSpot, using AI to predict which leads will convert. Deployed across 7 countries.
When I joined Skello, the website wasn't matching the company's ambition. No reliable tracking, manual RevOps, and a corporate site that wasn't converting. I rebuilt everything — Webflow redesign, n8n automations, deployment across 7 European markets. Result: +40% annual growth.
Paolina had traffic and a loyal community, but her conversion rate was stuck. The problem wasn't the product — it was the buying experience. Complete Shopify redesign, checkout funnel rewrite, and tracking setup to understand where customers were dropping off. +38% conversion within weeks.
B&Inside didn't exist. No brand, no site, no traffic. We started from a blank page: visual identity, Shopify store, and an aggressive acquisition strategy on Google Ads and Meta Ads. Six months later, 36,000 visits and a ROAS that was funding the growth.
A Norman plasterwork artisan with exceptional craftsmanship but zero online presence. The challenge: translating a centuries-old craft into a premium digital experience. Showcase site, e-commerce, SEO technical blog, and local search — so customers could finally find him where they're looking.
Photo
It all started with a frustration. During my studies at IIM Paris La Défense, I watched brilliant marketing teams get blocked by tech — and talented developers who understood nothing about business. I decided to become both. At Skello, I found the perfect playground: a hyper-growth SaaS, 7 European markets to conquer, and the freedom to build the entire acquisition system from scratch. The result — +40% annual growth — convinced me that the real leverage comes from breaking the silos between tech and marketing.
Today, as a freelancer, I apply that same philosophy to every project. I don't just build "a site" or "do analytics." I build complete systems — from the first click to the conversion — where every piece talks to the others. Because a beautiful site that doesn't convert is waste. And a marketing strategy without a technical foundation is hot air.
My journey on LinkedInIt's not the tool that delivers results — it's how you use it. But here are the ones I've mastered.
Webflow · Shopify · Next.js · HTML/CSS · Figma
Python · n8n · Zapier · API REST · SQL · MCP
GTM · GA4 · HubSpot · Salesforce · A/B Testing
From the people who've worked with me.
We were looking for someone who understood both marketing and tech. Matys restructured our entire web ecosystem, automated our RevOps, and the numbers followed. It's rare to find that hybrid profile.
Placeholder Client
CEO · Skello
My conversion rate had been stuck for months. Matys reworked everything — the design, the purchase funnel, the tracking — and within weeks, +38%. He doesn't just deliver a site, he delivers results.
Placeholder Client
Founder · Le Dressing de Paolina
When we launched B&Inside, we started from zero. Zero traffic, zero brand awareness. Matys built the brand, the site, and the entire acquisition strategy. 36,000 visits in 6 months — we didn't see it coming.
Placeholder Client
Co-Founder · B&Inside
The answers to what my clients ask before we start working together.
A Growth Engineer combines marketing expertise with technical skills to accelerate business growth. In practice, I don't just recommend a strategy — I build it, code it, and measure it. From GA4 tracking to Next.js sites to Python automations, I handle the full stack.
I mainly work with B2B SaaS and e-commerce companies looking to improve their conversion rates, automate marketing operations, or redesign their website. Whether it's a full Webflow/Next.js rebuild, reliable tracking setup, or RevOps workflow automation — I adapt to your needs.
We start with a free 30-minute discovery call to understand your problem. Then I propose a clear action plan with scope, budget, and timeline. Projects typically last between 2 weeks and 3 months depending on complexity. You have full visibility at every stage.
Freelance. That means I'm the one doing the work — not a junior it gets delegated to. You get a single point of contact who's responsive and knows your project inside out. No unnecessary meetings, no management layers. We move fast.
It depends on the project, but here are real examples: +40% annual growth for Skello, +38% conversion rate for Le Dressing de Paolina, 36,000 visits generated from scratch for B&Inside. I work with measurable goals — if we can't measure it, we don't do it.
Every project is different, so I don't quote fixed rates upfront. I work on project-based packages or recurring monthly retainers. The discovery call is free and no-commitment — we look at your needs together and I send you a clear proposal.
No pitch, no slides. Just 30 minutes to understand your problem and see if I can solve it.
30 min · free · no strings attached