Custom Shopify Development
Custom storefronts, sections and features built around your brand — without forcing your business into a generic template.
Full builds · Theme customization · Bespoke functionalitySOFTWARE ENGINEER × SHOPIFY DEVELOPER
High-performance Shopify stores built for better shopping experiences — and better conversion.
Custom Shopify development for DTC brands that need more than a template — from complete storefronts to high-impact improvements in product pages, carts, performance and UX.
Full builds
Focused improvements
Faster storefronts
Editable from Shopify
Better mobile UX
What I can help with
From focused improvements to complete Shopify storefronts.
Whether your store needs one high-impact improvement or a complete custom build, I can work with what you already have — or build the experience from the ground up.
Ecommerce UX & CRO
Improve the parts of your store that influence buying decisions — product pages, carts, bundles, upsells and mobile purchase flows.
PDPs · Cart UX · Bundles · UpsellsShopify Performance
Faster storefronts, less unnecessary JavaScript and fewer dependencies getting between your customers and checkout.
Core Web Vitals · Frontend optimization · App reductionStore Improvements & Support
Fix what is slowing your store down, improve existing functionality and keep your Shopify experience evolving as your business grows.
Bug fixes · Integrations · IterationHeadless Ecommerce Development
Custom frontend experiences for brands that need more flexibility, performance or control than a traditional storefront can provide.
Custom frontends · Integrations · Modern architectureFocused improvements
A better buying journey doesn’t always require a rebuild.
The right intervention can remove friction from a critical moment. Here, the same cart becomes easier to scan, understand and act on—while preserving the store around it.
- Clearer cart hierarchy
- Simplified purchase flow
- Better offer presentation
- More useful empty-cart state
View of the improvement applied to Kaching Bundles & Cart Drawer.
Selected work
Commerce problems, solved at the right scale.
Two ground-up storefronts and one high-impact cart intervention. Different scopes, the same focus: make the experience better for shoppers and more manageable for the business.
Nocturna
A fully custom Shopify storefront that stays editable from Shopify — without unnecessary storefront app dependencies.
Velor
A complete Shopify storefront that gives the brand a distinct shopping experience while staying editable from Shopify.
Rytual Cafe
A focused cart improvement that made offers, empty states and bundle behavior clearer without rebuilding the store.
Practical Shopify engineering
Custom doesn't have to mean complicated.
Fast. Maintainable. Merchant-editable. Built without unnecessary dependencies.
Selected tools
- Shopify
- Liquid
- Astro
- TypeScript
- JavaScript
- Node.js
- GraphQL
Custom-built. Still easy to manage.
I build Shopify sections and features your team can configure from the Shopify editor — without calling a developer every time you need to change content.
Performance by default
Fast storefronts with intentional client-side JavaScript, fewer unnecessary dependencies and a smoother path to checkout.
Built to keep evolving
Clean, scalable implementations designed to grow with your store instead of becoming harder to maintain over time.
Mobile-first ecommerce
Shopping experiences designed intentionally for the devices your customers actually use — not desktop layouts squeezed onto smaller screens.
About
Leandro Alonso — Software Engineer & Shopify Developer
I’m Leandro Alonso, a Software Engineer specialized in frontend development and Shopify. I combine engineering, ecommerce UX and performance thinking to build storefronts that work well for customers — and remain practical for the teams managing them.
- Software Engineer & Shopify Developer
- Córdoba, Argentina
- Education
- Ingeniería en Sistemas de InformaciónUniversidad Tecnológica Nacional, Facultad Regional Córdoba
Why work with me
Built like a product. Managed like Shopify.
Custom engineering shouldn't make your store harder to run. I build flexible storefronts that stay fast, maintainable and editable by your team.
Clearer buying journeys
Store changes are shaped around what shoppers need to understand, choose and do next.
Speed with a business reason
Performance work focuses on reducing friction between your customer and checkout.
Editable from Shopify
Custom sections and features stay practical for the team running the store day to day.
Less app dependence
When a focused feature can replace another storefront app, the store stays leaner and easier to manage.
Have a project in mind?
Let’s build a Shopify experience that performs.
Whether you need a complete storefront, a better cart, a custom feature or performance improvements, let's make your store faster, easier to use and better prepared to convert.