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Sergio FernándezSF

Sergio Fernández

Front end Shopify Developer

€250/day
Madrid, ES
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sergio

I come from being a waiter, cashier, telemarketer... I left home at 19 and haven't stopped. I've been in web development for 5 years, and after my last experience working in a digital marketing & design agency, I've gained enormous experience to jump into FREELANCE.

My specialization is the e-commerce world: Shopify, Liquid, Shopify Plus, Shopify CLI, payment gateways, CRO analysis (optimized for purchase, interaction, audience, etc.), Magento, and WordPress. But I could also play the role of a web layout designer given my knowledge in: HTML, CSS, JavaScript, and React.
And lastly, I would like to mention secondarily that I have worked with: Figma (being able to work autonomously with just a Figma design), Jira, Monday, GitHub, Bitbucket, etc.

I worked for 4 years at Fiftyx, the agency I mentioned, where I worked simultaneously for 15 different partners, with their respective necessary adaptations. And in the last year, I took on the responsibility of the Front End department, participating side-by-side with D.Diseño, organizing the team and participating in the web layout. And assuming the meeting with the client to show them what had been achieved in terms of Front End.

Since I've been self-employed, I've worked with the renowned agency Webmefy (Shopify Partner), an experience more than enriching for my career. And I hope to continue collaborating with companies or on projects where the enrichment is even greater.
I hope we can meet and sit down to talk about the proposal.

A big greeting!
Sergio
  • Spanish

    Native or bilingual

  • Catalan

    Native or bilingual

  • English

    Conversational

Can work on-site
Madrid (up to 50km)

Experience

  • FREELANCE
    FRONT - END SHOPIFY DEVELOPER
    E-COMMERCE
    October 2025 - Today (10 months)
    Madrid, Spain
    I decided to go freelance because I felt I had enough knowledge to take on my own projects.
    My experience working in e-commerce agencies has been a masterclass on e-commerce itself, but above all, it has helped me decide to specialize in Shopify.

    During this time, WEBMEFY, a renowned digital marketing agency and Shopify Partner, has been one of my clients.
    Shopify CLI Shopify Liquid Jira CSS3 HTML5
  • FIFTYX AGENCY
    FRONT - END SHOPIFY DEVELOPER & DEPARTMENT HEAD
    January 2022 - January 2025 (3 years)
    Integration of React.js via iframe and Quiz app in Shopify. Research, study, and integration of external apps. Web layout in Shopify environment and CSS in Liquid. Creation and development of new custom Liquid files. Shopify Plus B2B & B2C Metaobjects.
  • WODBUSTER
    FRONT - END REACT DEVELOPER
    April 2022 - June 2022 (2 months)
    Madrid, Spain
    Web layout using React.js. Cleaning, optimization, and componentization of existing code.

Recommendations

David MolistDM
Lucía Aguilar VelascoLA
David Molist and 1 other person have recommended Sergio

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Education

  • LIQUID STOREFRONTS FOR THEME DEVELOPERS Official
    2026
    LIQUID STOREFRONTS FOR THEME DEVELOPERS Oficial
  • SHOPIFY LIQUID
    SHOPIFY LIQUID

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