Vicubites
Pet food for two kinds of buyer on one store: pet owners on autoship and clinics buying wholesale.
Case study →
Open to full-time and part-time remote roles, and freelance projects
Shopify stores that load fast, sell more and are easy to change.
I’m Mario Vicuña, a senior Shopify developer. For more than nine years I’ve built and run stores for international DTC brands: custom themes, app integrations, Core Web Vitals work, A/B tests and Magento to Shopify migrations. Today I work across themes, apps, checkout, Hydrogen and the Shopify APIs.
- 9+years building ecommerce
- 50+Shopify and WordPress stores built
- −35%average load time, Core Web Vitals work at Trafilea
- +15%Facebook ad ROAS from mobile-first A/B tests at Trafilea
Trafilea Group, 2019–2026Redstage, 2016–2019
01Selected work
Six concept stores. Each one solves a different selling problem.
All projects →Every store is open to browse. Password: mariovic
Saelle Care
A short skincare routine, sold by skin type and step, on a store rebuilt entirely from code.
Case study →
Fjelder
Technical outerwear sold in Canada, the US and the EU, to shoppers who compare specs before they buy.
Case study →
Ondo Studio
Made-to-order furniture sold to homeowners and to the trade, on the same store.
Case study →
Kairon Audio
Headphones and speakers for shoppers who decide on battery life, weight and codecs.
Case study →
02Capabilities
The whole Shopify surface, not just the theme.
- 01
Themes
Online Store 2.0 sections and theme blocks, built on metafields and metaobjects, editable by the merchant.
- 02
Apps & integrations
Embedded apps, app blocks and webhooks, plus the review, subscription and analytics apps a store already runs.
- 03
Checkout & Functions
Checkout UI extensions, discount and validation Functions, B2B and Markets on Shopify Plus.
- 04
Headless
Hydrogen storefronts on the Storefront and Customer Account APIs.
- 05
Catalog data & AI
Catalogs and custom data rebuilt from code with the Admin API, and AI on top of that data: product recommendations, semantic search, LLM features.
- 06
Performance
Core Web Vitals audits and fixes for LCP, INP and CLS, measured before and after.
03Services
Need it built? Hire me for a project, or for your team.
All services →Custom theme development
A store that looks like your brand and that your team can edit without a developer.
Store features and integrations
The feature your theme or app stack is missing, built to last.
Speed and Core Web Vitals audit
A faster store and a prioritized list of what is slowing it down.
04How I work
Specs before code. Reviews before merge. Nothing touches live by surprise.
- 01 Brief
A 20-minute call and a written scope with acceptance criteria
- 02 Spec
Estimate, approach and risks before any code
- 03 Build
Work on a preview theme or branch; nothing touches live
- 04 Review
Pull request with self review and checks; you see every change
- 05 Ship
Release, handover notes and a short video walkthrough
Have a Shopify project or an open role?
Tell me what you’re building. I reply within one business day.