Federico Barranco

E-commerce web developer

3 years in web development. I run end-to-end e-commerce for brands like Patagonia Argentina: development, operations and logistics on Shopify, Tiendanube and WordPress. I built Loupe, a zoom app published on the Shopify App Store.

See my projects Contact
Try the Loupe zoom 1.0×
Click to zoom in. Move the mouse to pan, scroll up to 6×, click to reset.

3 years in web development

Today I run e-commerce for several brands at a digital marketing agency, work with my own clients and study Programming at UTN (National Technological University).

Work

Current job Apr 2024 – present

Sustentable Digital

Digital marketing agency

Shopify Developer, e-commerce web developer

I run each brand's e-commerce end to end and coordinate projects for several clients.

Development

Custom themes on Shopify and Shopify Plus (Online Store 2.0), Tiendanube and WordPress: product zoom, cart, menus, search, landing pages and collections.

Operations

Shopify Flow automations, order sync with the ERP, invoicing, and evaluation of apps and payment methods with their real cost.

Logistics

Shipping methods, carrier integration and in-store pickup with a QR code on the invoice.

Email and data

Campaigns and flows in Klaviyo, Perfit and Shopify Email, segmentation, behavior analytics and monthly reports for each client.

Brands: Patagonia Argentina, Mercado Textil, Joma, Tincho & Lola, Mundo Meeting, Santo Padre, Colegio San Andrés, Arawak and Mamuschka.

Own clients and own product

2026 – present

CJR Lighting's store, Boston Digital's course site and Loupe, my app on the Shopify App Store.

Occupational Health and Safety

5+ years

Before coding: site supervision and training for teams of 300+ people.

Education

In progress 2026 – in progress

University Technical Degree in Programming

Universidad Tecnológica Nacional (UTN)

Completed Dec 2022 – Sep 2023

Java Full Stack, Argentina Programa 4.0

Egg Cooperation. Java, OOP, MySQL, JDBC and JPA.

Previous education

Associate degree in Health and Safety (ITB) and Bachelor's in Health and Safety, coursework completed (UDE).

What I work with

Platforms

  • Shopify
  • Shopify Plus
  • Online Store 2.0
  • Tiendanube
  • WordPress
  • WooCommerce

Languages

  • Liquid
  • JavaScript
  • HTML5
  • CSS3 and SCSS
  • Twig
  • PHP
  • Node.js
  • TypeScript, learning
  • Python, learning

E-commerce and operations

  • Shopify Flow
  • Checkout and payments
  • Mercado Pago
  • ERP integration
  • Shipping and store pickup
  • Apps and integrations
See all toolsSee less

Email marketing

  • Klaviyo
  • Perfit
  • Shopify Email
  • Email HTML
  • Segmentation
  • Loyalty programs

SEO, performance and analytics

  • Technical SEO
  • Core Web Vitals
  • Lighthouse
  • Microsoft Clarity
  • UX/CRO
  • Search and filters (Boost)
  • Client reports

Workflow

  • Git and GitHub
  • Shopify CLI
  • Tiendanube CLI
  • Theme app extensions
  • FTP
  • Asana
  • ClickUp

My projects

Each project has a link to see it live.

Patagonia Argentina

In productionAgencyShopify Plus

At the agency I run the store's e-commerce end to end: theme, operations, logistics and email marketing.

  • Custom theme: my own zoom engine, per-variant detail gallery, cart, mobile menu and store locator.
  • Operations: Shopify Flow automations and orders synced with the ERP.
  • Logistics: in-store pickup with a QR code on the invoice, and shipping methods.
  • Email marketing in Klaviyo and a monthly report for the client.
Shopify Plus, Liquid, JavaScript, Shopify Flow, Klaviyo Try the zoom at patagonia-ar.com

Loupe Product Zoom

PublishedOwn product

My app on the Shopify App Store. It grew out of the zoom I built for Patagonia Argentina: it adds zoom to product photos and works with every theme.

  • Detects photos by the Shopify CDN URL, not by the classes of a specific theme.
  • Requests no permissions over store data.
  • I designed the product and took it through Shopify's approval.
Theme app extension, Liquid, JavaScript, React Router, TypeScript View on the Shopify App Store

CJR Lighting

LiveOwn client

From selling only on Mercado Libre to its own Tiendanube store, with branding, catalog and a custom home page.

  • 760 products imported and 135 categories generated with my own script.
  • Vehicle finder that builds itself from the categories.
  • Home page with an interactive color temperature scale, no libraries.
  • Spec sheet built in Twig from the imported description.
Tiendanube, Twig, SCSS, JavaScript, Node.js, Git Visit cjrlighting.com.ar

Boston Digital

LiveOwn client

Online course site on WordPress and WooCommerce: initial audit and measured improvements, one by one, before launch.

  • Custom course filter by area, with no page reload.
  • Redesigned course page, with 77 automated tests.
  • Search, footer and SEO fixed, with a before and after for every change.
  • Speed measured with Lighthouse, always with the same protocol.
WordPress, WooCommerce, PHP, JavaScript, Lighthouse Visit bostondigital.com.ar

From diagnosis to production, without breaking what already sells

  1. Evidence-based diagnosis

    I read the code and measure before giving an opinion. I propose changes based on verifiable errors, not impressions.

  2. Demo before building

    The client tries a small version and decides with something concrete in hand.

  3. Build and test for real

    I validate every change in the real theme or store before publishing it.

  4. Version and measure

    Git from the first commit, a restore point before touching production, and before and after measured.

For brands that don't settle for standard.

LinkedIn GitHub Loupe on the Shopify App Store