Advanced SEO & Growth Consulting for Ambitious Brands

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Unlock your brand's full potential with tailored SEO and growth strategies. Elevate your rankings across Google and beyond, with results that speak for themselves!

Here's how I'm different from other SEO experts

Globally recognized

I have notably identified and reported critical bugs in the Google crawler.

My SEO methods have been featured at Europe's top conferences. But don't worry, I won't bore you with technical jargon (unless you're into that sort of thing).
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Trusted internationally, I predominantly secure projects through referrals, thanks to my reliable and superior outcomes.

Battle-hardened

My SEO experience spans the full spectrum: from sites with virtually no indexed pages to those with over 250 million.

I have optimized websites that receive over 4 million daily clicks and have served for 5 years as the Head of SEO for Adevinta, a leading tech company in Europe, with monthly organic visits exceeding 500 million.

Whatever your SEO challenge, I’ve likely encountered and resolved it.

Directly from me to you

When you work with me, you work directly with someone who's led SEO at scale.

No account managers, no intermediaries, no junior SEO or intern interfacing - just straightforward SEO expertise from someone who's grown international platforms.

Here's some things I can do for you

Let’s work together to grow your business. Whether you need help with SEO, marketing, deploying AI, or something else, I’m here to support you every step of the way.
SEO Consulting

I know what it takes to get your website seen by the right people. I've worked with the world's largest marketplaces and classifieds sites, and SaaS companies to boost their traffic and visibility. If you're dealing with a large website or complex SEO challenges, I can help you cut through the noise and get real results.

Growth Advisory & Fractional CMO

Need a strategic partner to help grow your business? I work with startups and scaleups to turn good ideas into great results. Companies like Manglai have trusted me to guide their growth as a Fractional CMO. I'll help you spot opportunities, make smart marketing decisions, and scale your business the right way.

AI Transformation

Want to make AI work for your business? I'll help you understand what matters and how to use it effectively. We can:
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- Figure out how AI affects your business and industry
- Train your team to understand and use AI tools
- Set up AI-powered systems that make your work easier
- See how AI changes things like SEO and marketing
- Create a clear plan for bringing AI into your business

Beyond boundaries

I don't like putting work in boxes. Over the years, I've helped companies with all sorts of projects - from marketing and data analysis to product development and tech solutions. Need help with market research? Looking at M&A opportunities or integrations? Want to try something different? Let's talk about it and find a way forward that makes sense for your business.

Learn more about my approach by watching my public speaking gigs

You can find here some of content shared in conferences and events over the years

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Learnings on migrating 100,000 subdomains at once

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Scraping avanzado: Cómo hacer de internet tu base de datos

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How to Crush a Global SEO Rollout at Scale Today

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Actualización del algoritmo, Featured snippets y PWA

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SEO at Scale in 2020: How to rock in Google in 2020

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Cómo estamos transformando el SEO en Adevinta de 0 a 100

See More

Explore my SEO insights and resources

And you can also sign up to my newsletter Seopatía, the leading SEO newsletter in Spanish

Interviews

Written Publications

Democratizing SEO Podcast — Talks with SEOs 
Next.js Documentation — Learn SEO for Next.js framework with the official documentation made by Gary and me
TheInbound Podcast — ¿El SEO debe ir en Producto o Marketing? Y cómo liderar Enterprise SEO
Blog — The truth about the future of SEO and why SEO is more alive than ever (and it is ChatGPT’s fault)
Digital Marketing League Conference — Scaling a Global SEO Strategy 
Slides — SEO para desarrolladores, todo lo que necesitas saber
stayathomeconf Conference — SEO At Scale: How To Rock In Google 
Blog — The Rise of Image Metadata in AI-Generated Content (And How to Solve It)
Podcast Marketing Paradise — SEO en grandes Portales 
Slides — SEO vs. SEM: How they can work together to reduce cannibalization and maximize ROI
Podcast de Guillermo Gasón — Esteve Castells tiene que ser un jefe acojonante
Blog — How AI breakthroughs turbocharged my day-to-day as an SEO
See All

I have been featured in Leading Publications

Explore articles, media highlights and mentions in these top outlets

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But don't just take my word for it

Here's what some pretty awesome people have said about working with me (and feel free to ask for a reference!)

"I’d highly recommend Esteve. He’s probably the top marketplace SEO expert in all of Europe, with a rock solid track record. He’s a great guy, business-focused, zero-bullshit, and the real-deal kind of pro that’s so difficult to find. I’ve had the pleasure of working with him and can personally vouch for his expertise and professionalism."
Pere Quintana
CMO at Fotocasa & Habitaclia (Adevinta)
"Esteve has had a transformational impact at YunoJuno. His SEO expertise is second to none. Deeply insightful and navigating complex challenges with ease. Esteve is a rare find, combining technical acumen with commercial flair and a relentless drive for impact."
Runar Reistrup
CEO at YunoJuno
"Collaborating with Esteve on various projects has been a pleasure. He is a versatile professional with extensive experience in large-scale projects. Esteve is hands-on, always engaging with teams and exploring new tech innovations."
Jaume Fontal
Co-Founder & CPTO at Manglai
"Esteve is probably one of the best professionals I have met in my career. His experience, ambition and professional trajectory make him a reference in his field."
Oriol Torres
Co-Founder & CEO at Menorca Republik
"I had the pleasure of working with Esteve, an exceptional SEO expert. His deep knowledge and strategic approach led us to over 30 million page views per month for our site, Psicología y Mente. He is also a natural leader, driving teams efficiently to achieve outstanding results."
Bertrand Regader
Founder at Psicología y Mente
"Esteve is one of the biggest SEO experts in the industry I have ever worked with in my whole career. Thanks to his great ideas, our SEO improved more than 115% YoY, resulting in millions of additional page views."
Vladan Paunovic
Senior Engineering Manager at Shpock
"Esteve is the most impactful leader I had the chance to work with.  I feel privileged that I had the possibility to work with Esteve. He makes a difference and enables others to do the same."
Norbert Hires 
Head of SEO at Pet Media Group

Let's Talk

Unlock your business full potential today!