The Headless Commerce Revolution: Spain’s Innovative Development Partners

By Atit Purani

May 19, 2025

You’re Not Moving Too Slow, but Your Commerce Stack Is

Your team is doing everything right with great products, strong campaigns, and an expanding audience.

But your platform? It’s making growth harder, not easier.

You can’t iterate fast. Your developers are stuck fixing clunky code. Your marketing team needs to raise tickets just to update the copy.

And when you talk about launching something new like a mobile app, a regional storefront, or a better checkout everyone just sighs.

This is the harsh reality for many fast-scaling businesses still trapped in legacy systems.

It’s not your vision that’s broken, but it’s the tech stack that can’t keep up.

Whether it’s a lean startup in Barcelona or a legacy retailer in Madrid, the common pain point is friction.

You can’t build quickly. You can’t deploy confidently. You can’t test ideas without asking your CTO for a favor.

That’s why Spain’s smartest brands are moving to headless commerce, and we’re helping them lead the charge.

So, if you are trying to learn about headless eCommerce development in Spain and want to find Headless commerce agencies, this blog is perfect for you.

What Is Headless Commerce and Why Spain’s Businesses Need It?

What Is Headless Commerce

Headless commerce architecture separates your backend (orders, inventory, pricing) from your frontend (what users see and interact with).

With a headless CMS, frontend tools like Next.js or Nuxt, and robust APIs, you can:

  • Create stunning, fast frontends for every channel
  • Let marketers publish content without developer help
  • Launch new campaigns or products in hours
  • Improve site speed, UX, and SEO in one move

And most importantly? You’re no longer locked into a single system that controls every feature.

With headless commerce in Spain, companies are trading rigidity for agility, and it’s making a visible impact on performance, customer satisfaction, and team morale.

Who’s Making the Shift and Why?

We’ve helped:

  • A fashion startup in Valencia rebuilds its storefront with Shopify Hydrogen.
  • A DTC pet care brand in Seville reduced bounce rate by 43% after switching to Next.js.
  • A grocery delivery app in Madrid integrates its ERP and PIM into a unified GraphQL layer.

Across industries, one thing stays the same: companies that move headless move faster. They test new ideas weekly. And they’re not at the mercy of outdated CMSes.

How Long Does It Take to Go Headless and How Much Does It Cost?

Here’s what you’re looking at for typical projects:

Project Type Tech Stack Timeline Cost (EUR)
MVP Storefront Shopify + Next.js + CMS 4 to 6 weeks €5,000 to €10,000
Mid-sized Brand Custom APIs + CMS 6 to 10 weeks €10,000 to €20,000
Enterprise Platform Custom + GraphQL + ERP 12 to 16 weeks €20,000+

At Seven Square, we have a team of remote Headless commerce developers in Spain who deliver best-in-class eCommerce solutions for you.

Why Is Spain Perfect for Headless Commerce?

Spain’s eCommerce scene is booming and diverse. From regional retailers to global B2B platforms, everyone’s trying to move faster without sacrificing quality.

We’re seeing high demand from:

  • Fashion and lifestyle brands need responsive mobile-first experiences
  • B2B marketplaces with complex pricing and inventory
  • Subscription startups that want flexibility on checkout and delivery logic
  • Content-rich commerce (like beauty or wellness) that needs beautiful, SEO-optimized storytelling

If you’re in this space and still stuck on a monolithic platform, you’re leaving growth on the table.

What to Look for in a Headless Commerce Partner?

What to Look for in a Headless Commerce Partner

Not all headless commerce agencies in Spain are created equal. Here’s what to prioritize:

  • Real product thinking: Not just developers, but partners who understand your goals.
  • Proven stack expertise: Next.js, Nuxt, Sanity, etc.
  • Cross-functional communication: They should speak with “dev” and “marketing”.
  • Transparency: No vague estimates or outsourced teams you never meet.

At Seven Square, we’ve delivered custom headless commerce solutions for different industries, from high-traffic retailers to niche SaaS.

Want to build a headless eCommerce solution? Contact Us Today!

What are the 5 Top Headless E-Commerce Agencies in Spain?

If you’re researching top talent, here are five standout companies to explore:

1. Seven Square:

  • Known for: End-to-end headless builds, fast MVPs, deep product thinking.
  • Clients: Retail, food, B2B, SaaS, and more.

2. Sngular:

  • Full-service digital consultancy with strong eCommerce practice.
  • Specializes in enterprise-grade systems and integrations.

3. Onestic:

  • Magento-focused but expanding into composable architectures.
  • Ideal for large retailers with legacy systems.

4. Flat 101:

  • UX-driven agency helping brands optimize conversions and user journeys.
  • Strong in performance analytics and experimentation.

5. Redbility:

  • Premium product design and development studio based in Madrid.
  • Great for companies that prioritize brand and UX excellence.

Whether you’re a startup founder or product lead at a growth-stage brand, partnering with the right agency makes or breaks your next phase.

What’s Next? A Smarter Stack and Less Waiting

If your current setup requires developer tickets just to add a banner, it’s time to evolve.

Choosing the right headless commerce development partner in Spain isn’t about setting your business up to move faster, test more, and win on experience.

Headless eCommerce development is more than a trend, it’s a proven model for agility, flexibility, and results.

And you don’t have to leap blindly. At Seven Square, we:

  • Run fast, low-risk pilot projects (3 to 6 weeks)
  • Offer code audits for your existing stack
  • Help founders and PMs map migration plans

We’re here to help you make smart decisions.

FAQs

  • A headless CMS allows marketers and content teams to update website content independently without developer support, speeding up campaigns and product launches.
  • For Spanish eCommerce companies, using a headless CMS improves SEO and reduces bounce rates, crucial for driving organic traffic.

  • Fashion, lifestyle, B2B marketplaces, subscription services, and content-rich commerce sectors in Spain benefit greatly.
  • Headless solutions offer these industries the flexibility to customize customer experiences and manage complex product catalogs efficiently.

  • APIs are the backbone of headless commerce, connecting frontend interfaces with backend systems like inventory, orders, and pricing.
  • Spanish developers use GraphQL or REST APIs to create seamless, scalable, and real-time eCommerce experiences.

  • ROI can be measured through faster time-to-market for features, improved conversion rates, reduced bounce rates, and increased organic traffic.

Get in Touch

Got a project idea? Let's discuss it over a cup of coffee.

    Get in Touch

    Got a project idea? Let's discuss it over a cup of coffee.

      COLLABORATION

      Got a project? Let’s talk.

      We’re a team of creative tech-enthus who are always ready to help business to unlock their digital potential. Contact us for more information.