Senior Shopify Frontend Developer - Freelance

Michael Page España·Barcelona, Spain

What they offer

  • Permanent contract

    Full-time hours.

  • Hybrid

    Office and home days — the ad has the split.

What they ask for

  • Have the right to work in Spain

    Michael Page España doesn't mention sponsorship in the ad.

  • Be near Barcelona for hybrid days

    No relocation package mentioned.

  • Have senior-level experience

    Senior-level role.

Pulled from the advert automatically — the full ad is what counts.

Added 9 days ago
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About the role

We are looking for an expert freelance profile as a Senior Frontend Developer for an important Shopify project.

  • Important digital agency specialized in Shopify and Shopify Plus
  • We are looking for a Senior Shopify Frontend Developer - Freelance

What you'll do

  • Develop and optimize Shopify interfaces using Liquid OS 2.0, HTML/SCSS, JavaScript ES6+ and React (Checkout & Account Extensions).
  • Build complete applications with advanced business logic, not just isolated components.
  • Integrate Shopify with ERPs, CRMs, marketing platforms and logistics systems, managing complex and poorly documented APIs.
  • Ensure high web performance (Core Web Vitals) and WCAG 2.1 accessibility compliance.
  • Manage extensive catalogs (up to 160,000 SKUs) with efficient filtering, pagination and loading strategies.
  • Participate in Shopify migrations (content, redirects, visual testing, technical coordination).
  • Maintain production environments on Azure (Web Apps, Functions, monitoring and cost management).
  • Work in a small team, with autonomy, ownership and active participation in PRs, code reviews and advanced Git workflows.

What you'll get

Opportunities for growth and to work at one of the best Shopify agencies.

About the company & team

Important digital agency specialized in Shopify and Shopify Plus.

Who are we looking for (M/F/D)?

  • Demonstrated experience with advanced Shopify: storefront, cart, checkout, variants, multi-language and multi-market.
  • Ability to build systems with complex logic: subscriptions, loyalty, delivery schedules, POS, asynchronous processes and real-time features.
  • Solid experience with external system integrations: Business Central, SAP, Odoo, Salesforce, Klaviyo, etc.
  • Comfortable working with legacy code, incomplete documentation and unstable APIs.
  • Self-sufficient and solution-oriented profile, accustomed to small teams and making technical decisions with direct impact.

You'll most likely need Spanish to apply.This job was automatically translated to English, .

About the company

Michael Page España

Michael Page España

Staffing

View company profile
International company

Michael Page España is a staffing agency.They recruit for client companies, so the employer you would work for is not named on this ad.