I compress a product team into one person.
AI & Technical Product Manager: product, design, growth and code. I've proven it building solo from scratch and leading teams behind products used by millions.
- Product
- Design
- Growth
- Build with AI
- Leadership
- Founder
Facts, not adjectives.
Millions of users protected by the anti-fraud machine learning I led as PM.
LockLove, from idea to Google Play: my own concept, on a paid subscription.
€20M+ in performance-marketing spend managed at Adevinta and 21 Buttons, with ROI as religion.
fabrica Studio (opens in a new tab): projects from scratch: product, design, code, business plan and go-to-market.
Co-founder, CMO & COO of Nexus Clips; helped raise investor rounds.
4–8 people led, in corporations and in startups.
I've played every position on the team.
Product
From idea to backlog and from backlog to production. At scale (Adevinta) and from zero (Nexus, LockLove).
Design
Branding, UI/UX in Figma and a pixel-perfect obsession. This website is Exhibit A.
Growth
I've automated my own work and my team's since before it was called growth engineering.
Build with AI
I don't code blind: I catch bugs, sloppy work and bad decisions. The result runs in production.
Leadership
The real job: clarify, prioritize and unblock.
Founder
Building from nothing: validate the idea, form the team and go raise the money.
An app that lives on your lock screen.
The messages that matter don't ping you: they wait. So I built an app that sends no notifications at all.
Twenty years, no gaps.
- 2025–today
Product Builder
fabrica Studio: MVPs and custom product for clients.
- 2021–2025
CMO & COO · Co-founder
Nexus Clips: from the first MVP to funding rounds.
- 2019–2021
Head of Growth
Agora: product, marketing, data and partnerships in a single role.
- 2018–2019
Performance Director
21 Buttons: leading performance, influencers and SEO across 8+ countries at Barcelona's fashion startup.
- 2016–2018
Performance Marketing Manager
Milanuncios (Adevinta): paid, app marketing and CRM (Braze) for Spain's leading classifieds marketplace.
- 2014–2016
PM · Quality & Fraud
Adevinta (Segundamano · Coches.net): anti-fraud machine learning that protected millions without slowing growth.
- 2010–2013
Platform Operations
Fotocasa: XML integrations, QA and the desk everything passed through.
- 2008–2010
Manager & Designer
Anuntis: classifieds: where the detail habit started.
Understanding how something works isn't enough for me: I have to build it. The first time I went big was with a stratospheric balloon.
2012 · Signal lost
It rose to the stratosphere and never came back. I'd build it again tomorrow.
And I still listen to the sky: if you follow a flight over Barcelona on FlightRadar24 (opens in a new tab), part of that signal comes from my antenna — this sky: 24 hours, 1,170 aircraft.
If you need someone who turns ideas into product, let's talk.
Product roles, building with AI, or leadership. On a team, for the long run.
randy@esperben.com
