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I'm Louis Cathala, a full-stack engineer with over 11 years of experience, focused on web development since 2014. I specialize in JavaScript, Node.js and React (Next.js/Remix.js), and enjoy building efficient, scalable applications. I also have experience with Tailwind CSS, Sanity, and CI/CD tools like GitHub Actions and GitLab CI. I've delivered Shopify solutions ranging from simple theme updates to custom apps and extensions. I value stable, well-tested solutions and love exploring new frameworks while prioritizing performance. I thrive in collaborative environments and continuously seek opportunities to learn and grow as a developer, keeping a strong focus on maintainability, scalability, and delivering value for clients.…I'm Louis Cathala, a full-stack engineer with over 11 years of experience, focused on web development since 2014. I specialize in JavaScript, Node.js and React (Next.js/Remix.js), and enjoy building efficient, scalable applications. I also have experience with Tailwind CSS, Sanity, and CI/CD tools like GitHub Actions and GitLab CI. I've delivered Shopify solutions ranging from simple theme updates to custom apps and extensions. I value stable, well-tested solutions and love exploring new frameworks while prioritizing performance. I thrive in collaborative environments and continuously seek opportunities to learn and grow as a developer, keeping a strong focus on maintainability, scalability, and delivering value for clients.

Louis Cathala

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

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I'm Louis Cathala, a full-stack engineer with over 11 years of experience, focused on web development since 2014. I specialize in JavaScript, Node.js and React (Next.js/Remix.js), and enjoy building efficient, scalable applications. I also have experience with Tailwind CSS, Sanity, and CI/CD tools like GitHub Actions and GitLab CI. I've delivered Shopify solutions ranging from simple theme updates to custom apps and extensions. I value stable, well-tested solutions and love exploring new frameworks while prioritizing performance. I thrive in collaborative environments and continuously seek opportunities to learn and grow as a developer, keeping a strong focus on maintainability, scalability, and delivering value for clients.…I'm Louis Cathala, a full-stack engineer with over 11 years of experience, focused on web development since 2014. I specialize in JavaScript, Node.js and React (Next.js/Remix.js), and enjoy building efficient, scalable applications. I also have experience with Tailwind CSS, Sanity, and CI/CD tools like GitHub Actions and GitLab CI. I've delivered Shopify solutions ranging from simple theme updates to custom apps and extensions. I value stable, well-tested solutions and love exploring new frameworks while prioritizing performance. I thrive in collaborative environments and continuously seek opportunities to learn and grow as a developer, keeping a strong focus on maintainability, scalability, and delivering value for clients.

Available to hire

I’m Louis Cathala, a full-stack engineer with over 11 years of experience, focused on web development since 2014. I specialize in JavaScript, Node.js and React (Next.js/Remix.js), and enjoy building efficient, scalable applications. I also have experience with Tailwind CSS, Sanity, and CI/CD tools like GitHub Actions and GitLab CI. I’ve delivered Shopify solutions ranging from simple theme updates to custom apps and extensions. I value stable, well-tested solutions and love exploring new frameworks while prioritizing performance.

I thrive in collaborative environments and continuously seek opportunities to learn and grow as a developer, keeping a strong focus on maintainability, scalability, and delivering value for clients.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Work Experience

Developer at CloZ

July 1, 2025 - November 1, 2025

Public Shopify app with Gadget to allow a merchant to plug its products in CloZ SmartCloset network. The merchant configures mappings for product details; Shopify products are pushed to CloZ API with mappings applied; Shopify billing API used for paid plans; A webhook pushes stats to the DB; Merchants view per-product stats; Outfit suggestions based on likes; Some dashboard widgets restricted by plan.

Developer at IQ Spirits

January 1, 2025 - October 1, 2025

French taxes, discounts and PDF invoices management for a spirits shop using Shopify and Spark-Layer. Custom Shopify app using Gadget, product and order sync; CRUD for SparkLayer discounts; Create hidden tax products via metafields; Update Liquid theme and Spark cart/history to integrate taxes; Generate PDF invoices on fulfilment; Automated invoices upload to Google Drive; Admin settings available in Shopify.

Developer at Cimaises &+

October 1, 2024 - December 1, 2024

Custom Shopify carrier service to filter shipping methods based on cart items and shipping country. Complex shipping rules by weight, length and destination; Gadget-enabled Shopify app to configure conditions; Register a custom carrier service at checkout; Return shipping methods that match; Free shipping if conditions are met; Onsite products available for viewing without charge.

Developer at JCP Vacances

August 1, 2024 - November 1, 2024

Custom Shopify theme based on Dawn for a travel company; UI with a strong search feature across factors; Custom pages for Home, results, products, blog, account and orders; Heavy use of classic tech: HTML, CSS, JS, Web Components.

Developer at Artenza

June 1, 2024 - October 1, 2024

Management of frame products; Frame selector on product pages with dynamic image updates and price recalculation; Selected frame added to cart with synced quantities; Query parameter support for pre-selecting a frame for easy sharing.

Full Stack Developer at Zone Critique

October 1, 2023 - August 1, 2025

Litterature platform with multiple writers migrated from old WordPress to modern WordPress + headless Gatsby progressive web app; Fast installable static PWA; WordPress data and Stripe products fetched at build; Includes shop for digital, physical products and subscriptions with Stripe Checkout; Premium articles for subscribers.

Lead Developer at Explain.care

February 1, 2023 - August 1, 2023

Shopify and Remix headless app using Sanity for a skincare shop; Complex product specs via Sanity schemas; SSR pages for performance; SEO managed by merchant via Sanity; Routine builder with quiz, product suggestions and routine quick-buy; Fully manageable by merchant: products, SEO, routines.

Lead Developer at The Bradery

January 1, 2021 - July 1, 2021

Private sales clothes Shopify store; React Native app from scratch with automated builds; Node.js microservices for back-in-stock and email campaigns; Middleware Node.js API shared for web and mobile; Docker-based CI/CD; AWS CloudFormation stack with ECS and horizontal scaling.

Full Stack Developer at Ledger

March 1, 2020 - July 1, 2022

Theme evolutions and maintenance for a well-known crypto hardware wallet powered by Shopify; Globalization for shop, blog and support apps; Node.js Lambda functions for email campaigns; Terraform stack for Node.js microservices; Shopify Liquid theme maintenance; PoC app for Nano wallets with cryptographic voting.

Full Stack Developer at YOSS

November 1, 2018 - June 1, 2019

Platform for freelancers and recruiters; Numerous QoL improvements; x2 platform initiatives including yoss.works; Infra deployed on MS Azure; E2E tests with Cypress; CI/CD with GitHub Actions.

Full Stack Developer at Oyst

February 1, 2017 - September 1, 2018

Generic one-click payment solution for multiple platforms; React app embedded as an iframe; Node.js microservices for users, merchants and payments; 4-digit SMS authentication; Adyen card payments; Lead frontend v2 refactor.