Willian Dos Reis, Shopify Developer in Buenos Aires, Argentina
Willian Dos Reis

Shopify Developer in Buenos Aires, Argentina

Member since June 17, 2020
Willian is a freelance web developer specializing in Shopify. He's worked with Shopify plus accounts, developed themes from scratch with Slate or the Shopify theme kit, and created private and public apps. Along with several years of hands-on experience, Willian has an eye for detail in his visual presentations and always develops with a responsive design in mind. Willian has delivered several apps—building them from the beginning while working with teams to design new features.
Willian is now available for hire




Buenos Aires, Argentina



Preferred Environment

Mac OS, Trello, Slack, GitLab

The most amazing...

...thing I've developed is a public Shopify app called Activate Account App. I've also worked on many private Shopify apps.


  • Shopify Full-stack Developer

    2018 - 2021
    Arteta LLC
    • Worked as a full-stack developer and led the updates and customization of the existing sites (mainly new features and workflows).
    • Tracked the new features and bugs using Trello as a reporting-and-organizing tool.
    • Built out new branded websites as the company grew; also developed three private apps and one public app.
    Technologies: HTML5, CSS3, Bootstrap, Ruby, Node.js, React, Gulp.js, Next.js, Koa
  • Full-stack Developer

    2018 - 2019
    Mujeres Audiovisuales
    • Defined the architecture to be used and also developed the platform’s back end and front end with other two developers.
    • Tracked the new features and bugs using Trello as a reporting-and-organizing tool.
    • Coordinated the development of a messaging module with Pusher; also implemented the project on the production servers.
    Technologies: Laravel, Vue.js 2, PostgreSQL, HTML5, CSS3, Webpack, Pusher
  • Front-end Developer

    2015 - 2017
    Ministerio de Modernizacion
    • Developed the website's front end which consumed the data from an API provided by another team and showed all that information in a user-friendly manner.
    • Tracked the new features and bugs using Trello as a reporting-and-organizing tool.
    • Oversaw the launch which handled more than 200,000 requests that day.
    Technologies: HTML5, CSS3, Angular
  • Full-stack Developer

    2014 - 2016
    • Worked as a full-stack developer for a generic brand ERP; it mainly invoiced and documented audits, stock handling, checkout, customers, checking accounts, and reports.
    • Tracked the new features and bugs using Trello as reporting and organizing tool.
    • Implemented the back-end architecture as well as front-end information consumption.
    Technologies: Groovy, Grails, CSS3, HTML5, Sass, PostgreSQL


  • Alas App (Development)

    The Alas app is an augmented reality (AR) mobile application that enables the user to discover and observe the native butterfly species from the Rio de la Plata area in 3D as well as to add information.

    I worked with another developer to build this app from scratch while following the technical specifications from the National Farm Technology Institute. I adapted 3D models to Vuforia's augmented reality environment.

  • Savetrack (Development)

    Savetrack is a product presentation built in WordPress for a national startup that developed a product that detects when a driver, primarily truck drivers, is fatigued or is close to falling asleep at the wheel; it has central monitoring that informs on the situation in real-time. I developed the site in WordPress and implemented several plugins including a multi-language one since the site is in Spanish, Portuguese, English, and Chinese.


  • Languages

    HTML, CSS, PHP, JavaScript, Sass, JavaScript 6, R, Java, HTML5, CSS3, Ruby, Groovy, C#
  • Tools

    Shopify Plus, Trello, Slack, GitLab, Gulp.js, Webpack
  • Paradigms

  • Platforms

    Shopify, Heroku, Mac OS, Vuforia, WordPress
  • Frameworks

    Laravel, React Native, Next.js, Bootstrap, Koa, Angular, Grails, Unity
  • Libraries/APIs

    Shopify API, jQuery, Node.js, React, React Native for Web, Vue.js 2, Pusher
  • Storage

    MySQL, PostgreSQL
  • Other

    PSD, Agile Coach, Group Management, Web Logic, Augmented Reality (AR)


  • Bachelor's Degree in Digital Technologies
    2016 - 2021
    Universidad Nacional de Lanús - Lanús, Buenos Aires, Argentina
  • Technical Degree in Web Development
    2011 - 2014
    Universidad Nacional de La Matanza - San Justo, Buenos Aires, Argentina

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