About Luis Guillermo
I help brands build, customize, and scale high-performing Shopify stores with clean, scalable, and conversion-focused development.
I’m a Senior Shopify Developer with 5+ years of experience working with Shopify and Shopify Plus, specializing in custom theme development, advanced Liquid architecture, and complex frontend implementations. I focus on delivering tailored solutions that align with business goals, not just standard setups.
I’ve worked on multiple projects involving:
Custom Shopify themes (OS 2.0)
Advanced Liquid development and dynamic sections
Frontend development using JavaScript (ES6+), HTML5, and CSS3
Shopify API integrations and third-party app customization
Store migrations (WooCommerce, BigCommerce to Shopify)
Performance optimization and responsive design
What differentiates me is my ability to translate business requirements into scalable Shopify solutions while maintaining clean code, flexibility, and long-term maintainability.
I typically handle end-to-end Shopify development, from building custom storefronts to implementing complex features and integrations.
Available for freelance and long-term projects.
Spanish
Native or bilingual
English
Conversational
Can work on-site
Cuernavaca (up to 50km)
Experience
- Power Digital MarketingCRO Shopify Developer / Growth Frontend EngineerAugust 2023 - January 2026 (2 years and 5 months)San Diego, CA, USAFocused on improving key business metrics such as conversion rate, AOV, and revenue per session through experimentation, data-driven UX decisions, and highly customized Shopify implementations.Owned and executed CRO initiatives on Shopify, translating experimentation roadmaps into production-ready implementations without relying on third-party apps.
- Canvas LabSr Shopify DeveloperE-COMMERCESeptember 2023 - August 2024 (11 months)Monterrey, Nuevo Leon, MexicoAs a Senior Shopify Developer at Canvas Lab, I was responsible for creating innovative e-commerce solutions tailored to client needs on the Shopify platform. My role focused on optimizing and enhancing Shopify themes, improving checkout flows, and implementing new features that drive conversions. I also developed several custom applications using Node.js that connected to the Canvas Lab website via API, further enhancing the site's functionality and user experience. Additionally, I played a key role in optimizing the overall performance of the website, ensuring a seamless user experience and boosting the site’s efficiency and reliability.
- Sunshift DevShopify Theme & App DeveloperE-COMMERCEAugust 2022 - October 2023 (1 year and 2 months)Development of private Shopify apps, ensuring seamless integration and enhanced functionality for clients. Creation and customization of Shopify themes to improve user experience and align with brand identity. Utilized React.js, Vite, Shopify, and TypeScript to build robust and scalable solutions.
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Education
- NestJS: Node + Typescript al estilo Angular para crear APIS Shopify App Development with Node, React, REST API & GraphQL Curso Práctico de Frontend Developer E-commerce y contenido (CMS) Curso de ECMAScript 6+NestJS: Node + Typescript al estilo Angular para crear APIS Shopify App Development with Node, React, REST API & GraphQL Curso Práctico de Frontend Developer E-commerce y contenido (CMS) Curso de ECMAScript 6+
- Grado en Ingeniería, Ingeniería enUniversidad Nacional Autónoma de México2020Grado en Ingeniería, Ingeniería en