Growth & Demand Lead. I find the bottleneck between demand and revenue, then build the tools, funnels and experiments that close it — and ship them myself.
Areas of work: Demand generation, Growth strategy, Conversion rate optimization, AI workflows, Lead magnets, Multi-market execution, Product thinking, Marketing operations.
Each project starts with a growth bottleneck. The collection includes live tools, concept experiments and internal workflows. Explore what I built, the decisions behind it, and the limits of what each example demonstrates.
04 Live tools02 Concept experiments03 Internal tools
3 case studies · 9 tools in the collection
Start with a case study for context, then explore the demo.
reactor-chi-seven.vercel.app
Illustrative preview
Audience simulation
24–26 personas Grouped by what they care about
VerdictToo close to callInside the noise floorExplore a hypothesis before a real audience test.
Selected system · 01Reactor · audience simulation
FeaturedAI lead magnetLive tool01 / 09
Reactor
Explore the copy before you test it with people.
Compare two copy variants with 24–26 AI-generated personas and inspect their simulated responses. Use the output to form hypotheses for a real audience test.
Shows Streaming visualization, synthetic persona generation, and uncertainty messaging. A simulation workflow, not evidence of campaign performance.
The tools are the visible part. The job underneath is the same every time: locate the constraint, remove it with the smallest useful system, then instrument it so the result is not a story.
01 — DIAGNOSE
Start with the number that's stuck.
Traffic without pipeline, leads without calls, launches without learning. Find the real constraint before choosing the fix.
02 — BUILD
Ship the smallest system that moves it.
A calculator, a diagnostic, a QA workflow, a funnel. Built fast, in the open, and useful on day one.
03 — MEASURE
Measure. Kill. Or scale.
Instrument the outcome, read the signal honestly, and double down only when the number earns it.
I'm Fernando, a Growth & Demand Lead based in Barcelona. I've spent my career in the part of marketing where strategy meets execution: finding demand, fixing conversion, and turning repeatable work into systems.
What makes me different is that I don't stop at the brief. I build the calculator, the workflow, the diagnostic, the tool — usually with AI in the loop. This collection includes 4 live tools, 2 concept experiments and 3 internal tools. The case studies distinguish product capabilities from business outcomes that still need to be measured.
FP
Fernando Peccatiello
Growth & Demand Lead
Based in
Barcelona, Spain
Focus
Demand generation, conversion, AI-native growth systems