Shopify Frontend Developer

what. is a consultancy that supports its clients with their web presence, the creation of digital products, and their growth. For our clients, we conceptualise and build digital products and websites.

At what. we believe that great websites are not only beautiful but also usable - both for visitors and editors. We take a considerate approach to building websites that are stunning and have that little extra that makes them stand out. We want to build great sites that help our clients succeed.

As a company, we want to grow together with our clients and work with them long-term, which is why we are quality-minded and results-focused.

If you share our passion, then this job offer is for you.

We are looking to strengthen our team with a Senior Shopify Developer that will extend our team with their skill and drive. Someone who truly cares about the online stores they build: They work well, are maintainable and can be easily extended.

Building and enhancing Shopify storefronts and themes will be your main focus. You'll work on custom implementations, new features, and optimisations across a variety of Shopify projects. You'll collaborate closely with designers, backend developers, and project managers to deliver high-quality, maintainable, and conversion-driven Shopify experiences.

• Develop, customise, and optimise Shopify themes using Liquid, HTML, CSS, and JavaScript (ES6+).
• Integrate dynamic features with Shopify APIs (REST and GraphQL) and occasionally with third-party apps or custom middleware.
• Implement responsive, accessible, and high-performance user interfaces.
• Translate Figma or other design mockups into robust, production-ready code.
• Continuously improve and refine existing storefronts based on analytics and user feedback.
• Debug and resolve issues related to theme functionality and performance
• Maintain clean, organized, and well-documented code following Shopify best practices
• Optimize website SEO, page load speed, and user experience through front-end improvements
• Manage Shopify theme versions, backups, and deployment workflows

• 3+ years of Shopify frontend development experience.
• Strong proficiency in Liquid, HTML5, CSS3, and modern JavaScript as well as Shopify APIs
• Understanding of Shopify's architecture (themes, sections, metafields, apps).
• Familiarity with performance optimization and SEO principles.
• Experience with version control (Git) and working collaboratively in cross-functional teams.
• Ability to debug and optimize performance, SEO, and page speed
• Basic understanding of Shopify CLI, Liquid schema, and theme deployment workflows
• Bonus: familiarity with Shopify Hydrogen, Tailwind CSS, React, or headless eCommerce setups.

You'll always have the opportunity to learn something new. You'll never get bored with us, as new and exciting challenges come up every day.

At what., we believe that work should be something you want to do, not something you have to do. We foster that by offering:

• Excellent office location in Seefeld, Zürich (if you work in Switzerland).
• Flexible working hours — need to run an errand in the morning? No problem. We're results-oriented, not micromanagers.
• Flat hierarchy — decisions are made fast when needed.
• A large amount of ownership in your work and input in our processes — if you see a way to improve something, just speak up.
• A multicultural and multidisciplinary team focused on improvement and learning.
• Individual training and mentoring to help you grow.
• Opportunity to visit the team in Switzerland (we cover the costs).
• Fair compensation.
• Opportunities to visit clients on-site in Switzerland.

We only accept direct applications from candidates — no recruitment agencies for this position.

Please send your CV, a cover note, and a 1–2 minute intro video (we find Loom or YouTube work best) where you tell us a bit about your experience, contributions, and what excites you about Shopify development.

Please note that only applications with a cover note and an intro video will be considered.