
MM Shopy Devs
Shopify Plus agency for fashion, luxury and jewellery brands
Barcelona Shopify Plus Partner for fashion, luxury and jewellery brands since 2017. Custom themes, migrations, CRO and integrations, including Recharge subscriptions, from a small senior team.
United Kingdom & Ireland · Europe · North America · Latin America
Barcelona, CT, ES

About MM Shopy Devs
MM Shopy Devs is a Shopify Plus Partner in Barcelona that designs, builds and runs online stores for fashion, luxury and jewellery brands. Founded in London in 2017, we have delivered more than 120 Shopify stores for brands such as Nude Project, Hunza G, Sabyasachi, Marfa Stance, Anglo-Italian and Private White V.C.
Brands come to us when their store needs more than a theme can give: custom Shopify and Shopify Plus themes, migrations from Magento, WooCommerce and other platforms, CRO on product and checkout pages, and custom apps and integrations.
For brands selling subscriptions or replenishment products, we build Recharge into the store so it matches the design and works with the rest of the stack: subscription options on the product page, the customer portal and Klaviyo flows.
We are a small senior team. You work directly with the people building your store, in English, Spanish or Italian, backed by AI-assisted development and QA from MM Gate, our in-house system that reviews and tests every change before it reaches your live store. For fashion and luxury brands that means a premium storefront your own team can update day to day, without waiting on developers for every change. Our team has built on Shopify since 2017, with hands-on expertise in Liquid theme development, Hydrogen and headless rebuilds, platform migrations and conversion optimisation, and verified client reviews on Google and Clutch.
At a glance
BUDGET
- $50,000+
- $2,500-$4,999
- $5,000-$9,999
- $10,000 - $29,999
- $30,000 - $49,999
PLATFORM
- Shopify
- Shopify Plus
EXPERTISE
- Design
- Klaviyo
- Migrations
- Development
- Conversion Rate Optimization (CRO)
REGIONS SERVICED
- Europe
- South America
- North America (US)
CATEGORIES
- Conversions
- Personalization
- Subscription Management
- Upselling and Cross-selling
COLLECTIONS
- Shopify Checkout Integration
Testimonials
“MM Shopy Devs consistently delivers technical excellence while keeping merchant usability front and center. The result is stores that look great, convert well, and are genuinely easy for clients to manage day-to-day.”
Avalon Portolan · Creative Director, UX/UI Designer at Studio Portolan
“Their deep knowledge of Shopify is superb: they understand the platform inside out and offer solutions that are both effective and efficient. They don't just do what's asked, they take the time to understand your goals and offer suggestions that take the project to the next level.”
Oliver Lucas
“Having professionals like MM Shopy Devs by our side has, without a doubt, helped our ecommerce grow fast. They take on every challenge with professionalism and commitment, and they are always quick and available.”
Paula Sanchez Vazquez · UX/UI Designer at Nude Project
“We chose MM Shopy Devs to move from Hydrogen to a custom Shopify theme, and we couldn't be happier. Thanks to their work, our team can now make changes to the site without constantly relying on developers.”
Jose Ghirardotti
“Very professional and helpful, with great knowledge of Shopify. MM Shopy Devs helped me all the way from template selection to website launch.”
Marco Mecocci
Media

Selected Clients
Resources
Case studies: fashion and luxury Shopify stores
Builds, migrations and redesigns for Nude Project, Hunza G, Marfa Stance and more.
Case study: Nude Project, Shopify Plus partner from launch to scale
How we built the custom theme, premium setup and ongoing CRO for the Barcelona fashion brand, working as their Shopify team since the early days.
Case study: Sabyasachi, luxury fashion and jewellery on Shopify Plus
Our Shopify Plus work for one of India's best-known luxury fashion and jewellery houses.




