Zinzo is the team for the hard technical work: performance-first builds, clean code, and senior Dutch oversight backed by a nearshore engineering hub. Whatever the build need - a new store, deep custom engineering, or a Shopify app - it starts here.
Three ways we build
One team, three clearly defined build services - so you always know exactly what you are getting.
Ecommerce Development
Scalable, high-converting stores built from scratch or migrated onto Shopify and Shopify Plus - no templates.
- Custom Shopify / Shopify Plus builds
- Platform migrations (WooCommerce, Magento, MijnWebwinkel)
- Headless commerce
- Conversion-focused storefronts
Shopify Engineering
The hard engineering - custom logic, third-party integrations, and performance-critical architecture that off-the-shelf teams cannot deliver.
- Custom theme engineering
- Complex integrations and APIs
- Multi-language and multi-store setups
- Performance optimization and migrations
Shopify App Development
High-performance Shopify apps - from embedded admin tools and automation to public App Store listings.
- Custom app development
- Shopify Functions & UI Extensions
- Embedded admin apps and automation
- App Store publishing and maintenance
What our clients say about us
"Zinzo addressed the legacy code affecting our shop's speed performance, while developing some new features. As a result, the performance score already doubled, with more improvements following soon."
Guido Evers
Testa Omega-3
"The custom improvements to our webshop were done professionally, in close cooperation with our technical partner and delivered within 2 weeks. We immediately noticed the results in our analytics: in the first month we measured a 14% conversion rate increase from organic search and +81% increase on paid search."
Ronald Klijsen
Loints of Holland
"The core web vitals changed from 60 (fail) to +80 (pass) following the performance fix to one of our client's Magento webshop. Directly we saw the paid traffic conversions improve by almost 80%."
Akke Pennin
IWB Agency
"The Performance Audit not only gave me practical insights to technical changes, but I also got important feedback how to improve the conversion rate in the buyer journey. Great value!"
Tim Dekens
The Change Starts
"Zinzo built a custom Shopify store that aligns perfectly with my brand, implementing every detail as I envisioned while maintaining clear communication throughout the process."
Susan van Elteren
Noble Xi
"Working with Zinzo was personal, efficient, and delivered a great result: a scalable Shopify solution for our unique gift assortment."
Lennert Rietveld
Geschenken van Vroeg
"Zinzo delivered exactly what we needed — fast, technically solid, and with clear communication throughout. Their Shopify engineering expertise really stood out, especially in making our store fully multilingual and scalable for international growth. Complex requirements were handled smoothly, feedback was picked up quickly, and responses were always within a day. We're extremely happy with the end result and the way the team works."
Yannick Haverkamp
Tote Label
"This team has the expertise and is fast. We migrated from MijnWebwinkel to Shopify and they help us at every step. Super."
Arend-Jan Majoor
StopMijnAfval
Frequently asked questions
What is the difference between Ecommerce Development and Shopify Engineering?
Development is building or replatforming a store - the storefront, theme, and core setup. Engineering is the complex custom logic, third-party integrations, and performance-critical work that goes beyond a standard build.
Can you migrate my store to Shopify or Shopify Plus?
Yes. We migrate stores from platforms like WooCommerce, Magento, and MijnWebwinkel onto Shopify and Shopify Plus, preserving your data, URLs, and SEO in the process.
Do you build custom Shopify apps, both private and public?
Yes. We build private (custom) apps for individual merchants as well as public apps published to the Shopify App Store, including embedded admin tools, automation, Shopify Functions, and UI Extensions.
Do you work with headless Shopify?
Yes. We build headless storefronts when it is the right fit, and we are equally happy to recommend a well-engineered native Shopify build when headless would add cost without a clear payoff.
How do we get started?
Book a free discovery call and we will scope your build. If speed is your main concern, the low-friction Performance Scan is often the fastest first step.