JW Cornelis

Software Engineer

Your Shopify Development Partner

Whether you're just getting started or already generating $10M+ in annual sales, I help businesses at every stage grow, adapt, and thrive on Shopify. I've worked with a wide range of stores, from new ventures to established brands, and I know that every store has its unique needs.

I build custom themes tailored specifically to your brand, seamlessly integrate complex systems, and provide ongoing support to ensure your store scales effortlessly as your business grows.

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Start selling more in weeks

  • Not just another generic theme

    I create custom themes tailored specifically to your brand’s identity. Your store won’t just look good—it’ll stand out from the competition and deliver a unique shopping experience.

  • High-converting store

    My focus is on building stores that don’t just attract visitors but turn them into loyal customers. Every element is designed with conversions in mind.

  • Go beyond Shopify's default features

    Need something more than what Shopify offers out-of-the-box? I integrate complex functionalities and systems that give your store the edge, no matter how specific or custom your needs are.

  • Automate time-consuming tasks

    I help you save time by automating the processes that slow you down. From order management to customer service, I’ll build systems that let you focus on growing your business while the tedious work runs smoothly in the background.

What can I help you with?

  • Cutom themes & designs

    I craft unique, brand-centric themes that go beyond templates. From sleek aesthetics to intuitive user experiences, I ensure your store looks and performs its best.

  • Migrate to Shopify

    Switching platforms can be overwhelming. I handle seamless migrations to Shopify, preserving your data and ensuring your store runs smoothly from day one.

  • Shopify Apps & integrations

    Need custom functionality? I develop and integrate apps that extend Shopify’s capabilities, from third-party systems to specialized tools that fit your business needs.

  • Complex products & subscriptions

    Selling complex products or subscription services? I design solutions that make managing and selling these products effortless, streamlining the experience for both you and your customers.

  • Analytics & Optimization

    I provide data-driven insights and performance enhancements that help you optimize your store’s user experience, boosting sales and improving customer retention.

What clients have to say

  • “From A to Z”

    — Latifa, Marketing at Amani Lab

    Working with JW was exactly the kind of experience you hope for but rarely get. He didn’t just help us get set up and launch the site — he made it feel effortless. He took our branding and Figma designs and turned them into something that just worked.

Build a store that makes the competition irrelevant

I don’t just build stores — I help you craft a Shopify store that reflects your brand’s uniqueness and turns your competition into an afterthought. By understanding your products, customers, and vision, I create something truly custom that boosts conversions and loyalty. My services start at €5000.

Frequently asked questions

  • How long does it take to build a custom Shopify store?

  • What would this cost me?

  • How do you work?

  • Can you work with my existing store or do I need to start from scratch?

  • Do you offer ongoing support after the store is launched?

  • Can you build custom features or apps for my Shopify store?

  • Will my Shopify store be optimized for mobile?