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I am a Middle FullStack Developer with +4 years of hands-on experience, and I have also spent over a year as a Shopify Engineer building, scaling and optimising high-conversion DTC storefronts. I focus on Shopify OS 2.0, performance optimization, modular component development, and data-driven UX improvements to help products convert more customers. I enjoy collaborating with Product, Growth and Creative teams in fast-moving remote environments. I own features end-to-end from brief to deployment, ship conversion-focused updates, and continuously iterate to improve speed, stability and revenue.…I am a Middle FullStack Developer with +4 years of hands-on experience, and I have also spent over a year as a Shopify Engineer building, scaling and optimising high-conversion DTC storefronts. I focus on Shopify OS 2.0, performance optimization, modular component development, and data-driven UX improvements to help products convert more customers. I enjoy collaborating with Product, Growth and Creative teams in fast-moving remote environments. I own features end-to-end from brief to deployment, ship conversion-focused updates, and continuously iterate to improve speed, stability and revenue.

Luis Adrián Cuellar Barba

Full Stack Developer, Web Developer, Front-End Developer, +2

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I am a Middle FullStack Developer with +4 years of hands-on experience, and I have also spent over a year as a Shopify Engineer building, scaling and optimising high-conversion DTC storefronts. I focus on Shopify OS 2.0, performance optimization, modular component development, and data-driven UX improvements to help products convert more customers. I enjoy collaborating with Product, Growth and Creative teams in fast-moving remote environments. I own features end-to-end from brief to deployment, ship conversion-focused updates, and continuously iterate to improve speed, stability and revenue.…I am a Middle FullStack Developer with +4 years of hands-on experience, and I have also spent over a year as a Shopify Engineer building, scaling and optimising high-conversion DTC storefronts. I focus on Shopify OS 2.0, performance optimization, modular component development, and data-driven UX improvements to help products convert more customers. I enjoy collaborating with Product, Growth and Creative teams in fast-moving remote environments. I own features end-to-end from brief to deployment, ship conversion-focused updates, and continuously iterate to improve speed, stability and revenue.

Available to hire

I am a Middle FullStack Developer with +4 years of hands-on experience, and I have also spent over a year as a Shopify Engineer building, scaling and optimising high-conversion DTC storefronts. I focus on Shopify OS 2.0, performance optimization, modular component development, and data-driven UX improvements to help products convert more customers.

I enjoy collaborating with Product, Growth and Creative teams in fast-moving remote environments. I own features end-to-end from brief to deployment, ship conversion-focused updates, and continuously iterate to improve speed, stability and revenue.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Spanish; Castilian

Fluent

English

Advanced

Work Experience

WordPress Developer at Westaflia

January 1, 2024 - May 1, 2024

Led WordPress development and customization for a client project using Elementor Pro and custom plugins. Developed and customized WordPress themes, modified plugins, and optimized site performance through various strategies.

Full Stack Developer at CareFlash

January 1, 2020 - Present

Maintained and modernized a legacy PHP/MySQL web application serving over 13,000 users. Executed migration to modern frameworks and implemented automated processes to enhance efficiency.

Shopify & E-commerce Developer at Forma Tu Cuerpo

January 1, 2025 - Present

Built, optimized, and managed multi-region Shopify storefronts for a high-growth brand. Developed modular sections, integrated ERP systems, and collaborated with various teams to drive updates.

Shopify Engineer / E-commerce Technical Specialist at Forma Tu Cuerpo (FTC) – DTC Shapewear Brand

January 1, 2025 - January 1, 2026

Led front-end development and optimisation for multiple Shopify stores across US, MX and LATAM markets. Built modular OS 2.0 sections and blocks to support rapid experimentation by Growth and Creative teams. Customised and extended Dawn-based themes, ensuring clean, reusable and scalable Liquid code. Improved site performance through lazy loading, image and asset optimisation, and reduction of render-blocking scripts. Implemented custom storefront logic and integrations using Shopify APIs and third-party services. Owned features end-to-end: requirements → development → QA → deployment. Collaborated daily with Product, Marketing and Design to ship conversion-driven updates. Maintained high technical quality through self-QA, debugging and continuous refactoring. Supported catalog scalability (large variant sets, metafields, pricing logic) without impacting storefront performance.

Full-Stack / Front-End Developer at CareFlash

January 1, 2020 - Present

Maintained and modernised a legacy PHP-based platform with over 13,000 users. Refactored front-end components to improve usability, responsiveness and performance. Worked with MySQL data structures and business logic while keeping the UX stable. Led gradual migration planning towards modern stacks (Laravel + modern front-end tooling). Collaborated cross-functionally to deliver stable releases with minimal regressions.