I help retail and e-commerce brands who struggle with performance issues, low conversion, and scaling pains by engineering high-performance storefronts and interactive experiences built for conversion so they can launch smoothly, iterate faster, and grow revenue.

I work with retail and e-commerce brands when their storefront starts getting in the way of growth. Maybe the site feels sluggish, conversion has plateaued, or adding “one small feature” turns into a whole adventure. I know how frustrating that is, because every slow page and clunky flow quietly costs you sales.

I’m a developer at heart, and I love turning messy problems into clean, dependable builds. I engineer high-performance storefronts and interactive experiences that are built for conversion, the kind that stay fast under traffic and don’t crumble the moment you need to scale. I sweat the details, from how quickly a page renders to how smoothly the checkout journey feels.

What you get is a launch that feels calm, and a storefront that keeps improving after day one. You can ship updates without fear, experiment with new ideas, and grow revenue with confidence. And instead of fighting your tech stack, you get to enjoy it.

You’ve put real care into the vision, the brand, and the customer experience. My role is to translate that into a build that feels just as sharp in the browser as it does in the concepts, down to the small details that make it feel premium.

I work as a true partner, not just someone who takes tickets. I’m thoughtful and proactive, and I’ll speak up when something can be stronger, simpler, or more scalable. You’ll get steady updates, clear options when trade-offs appear, and a process that keeps momentum without surprises.

You can expect clean builds, clear communication, and craftsmanship you can depend on. The outcome is a website that performs beautifully, converts better, and stays easy to evolve as the business grows.

I have had the pleasure to work with a variety of companies like CLEVER°FRANKE, GoSpooky, Monks, Superhero Cheesecake, Wonderland and Your Majesty.

And I have created work for brands like Adidas, ING, KPN, Lucid Motors, Netflix, Philips, Tony Chocolonely, Viktor & Rolf and WeTransfer.

Nothing beats a solid collaboration. And seeing it being acknowledged by industry peers is a great bonus.

The FWA (30x), Awwwards (33x), Cannes Lions (16x), Lovie Awards (1x), ADCN (6x) & Spin Awards (12x).

I’m Peter, an experienced developer with a background in Interaction Design. I care about how it feels to use: clear structure, predictable flows, good hierarchy, and the kind of micro-interactions and motion that add polish. I naturally think from the user’s perspective, which helps me translate design intent into interfaces that are easy to understand and satisfying to navigate.

Q: Do you work with companies or agencies?
A: Both! I enjoy working directly with brands as well as in collaboration with agencies.

Q: What technologies do you work with?
A: I specialize in React and Next.js for web applications and include Shopify for e-commerce. I also use other tools and frameworks as needed to deliver the best solution like GSAP, Threejs and more.

Q: Do you offer design services?
A: My primary focus is on development. I collaborate closely with designers to ensure the final product aligns with the design vision. If needed, I can also recommend skilled designers.

Q: Can you handle complex animations?
A: Yes, I have extensive experience creating smooth, performant animations that enhance user experience without compromising performance.

Q: Which CMS do you work with?
A: I have experience integrating various headless CMS solutions such as DatoCMS, Storyblok, Contentful and Prismic.

Q: Can you help with performance optimization?
A: Absolutely! I focus on building fast, efficient applications that provide a smooth user experience.

Q: Do you offer post-launch support?
A: Yes, I provide ongoing maintenance and support to ensure your application continues to perform well after launch.

Interested in working together? Send a message to info@petercoolen.com.