Technical Shopify Developer
Reliable Shopify development for agencies
I help agencies and brands with everything from themes to the heavier technical work: custom apps, Shopify Functions, integrations, migrations, and ongoing support.
Services
From one-off builds to ongoing technical support.
App Development
Building custom Shopify apps when existing apps cannot solve the problem, or when you need deeper integration between Shopify and external systems like ERPs and CRMs.
Custom Shopify Development
Developing custom Shopify Functions (discounts, shipping, checkout logic), product logic, advanced filters, automations, and custom storefront behavior.
Platform Migrations
Moving stores to Shopify from platforms like PrestaShop or WooCommerce while keeping data, SEO rankings, and uptime intact.
Technical Consulting
Advice on Shopify architecture, integrations, performance, and choosing the right technical approach for a project.
Theme Development and Integration
Building and customizing Shopify themes that match the brand and keep the store fast and easy to maintain.
Maintenance and Support
Bug fixes, performance improvements, and ongoing technical support for agencies.
Recent Work
Projects delivered for agencies and brands.
Louis XIII
French Bloom
Bliss
Rémy Cointreau
Sweet Pepper
Filon
Testimonials
What clients and partners say about working together.
"I gave Matthias several technical tasks and he delivered on every one. From a custom loyalty program to automated PDF invoices and bug fixes, he improved the experience on my site. He is professional, responsive, and I would happily work with him again."
"I have worked with Matthias on several Shopify projects and the experience has always been excellent. He understands both the technical side and the business side of e-commerce, and he consistently proposes solid solutions."
"Matthias helped improve the technical structure of my store, optimized SEO, and handled several integrations. Professional, responsive, and easy to work with."
How I Work
A simple process from first conversation to delivery.
Discovery and Analysis
We discuss the goals of the project and any constraints. I review the current setup and outline the technical approach and timeline.
Proposal and Planning
You receive a detailed proposal with a clear scope of work and realistic timeline. Once approved, development begins.
Build and Iterate
I build using clean, maintainable code and Shopify best practices. You receive updates along the way and can request adjustments if needed.
Delivery and Support
Testing and deployment are handled carefully. I can also walk your team or your client through what was built and remain available for future improvements.
About Me
I am a technical Shopify developer with a background in software engineering. For the past few years I have focused entirely on Shopify development. I work with agencies and brands on everything from themes to the heavier technical work: custom apps, Shopify Functions, integrations, and custom features.
Many of my projects involve working with agencies as their technical Shopify development partner. I keep communication clear and reliable so projects move forward smoothly.