EsteveĀ Castells
Barcelona, Catalonia, Spain
Summary
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SeniorEsteve Castells is an independent SEO consultant and growth advisor based in Barcelona with 8+ years shaping data-driven user acquisition strategies at the intersection of marketing, product, and analytics. As Global Head of SEO at Adevinta, he led a 12-person team, built a company-wide SEO program across 30 marketplaces in 16 countries, and steered the merger with eBay Classifieds Group, delivering multi-market organic growth and scalable SEO playbooks. He previously scaled organic traffic to over 1.5 billion monthly visits, implemented ASO, content marketing, and referral growth initiatives, and even built paid acquisition programs driving six-figure revenue at Softonic. In parallel, he shares knowledge as a lecturer and associate professor at multiple universities and business schools, shaping digital marketing curricula since 2018. He co-founded LLM Pulse in 2025, signaling a foray into AI-powered language model applications for growth. Based in Barcelona, Esteve combines hands-on execution with strategic leadership, always looking to connect with peers eager to push the Internet's potential.
8 years of coding experience
Github Skills (14)
compiler10
typescript10
javascript10
nextjs10
react-framework10
server-rendering10
browser10
ssg10
reactjs10
vercel10
react10
hybrid10
storybook10
static-site-generator10
Programming languages (1)
Github contributions (2)
estevecastells/translate-string-php
Jul 2017 - Jul 2017
Contributions:3 pushes, 1 branch in 1 day
vercel/next.js
Mar 2020 - Dec 2023
The React Framework
Contributions:1 comment in 3 years 9 months
reactbrowserssgserver-renderingjavascript
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