● Available for new projects

Frontend Developer

Esteban W

Crafting exceptional digital experiences for over a decade.
Expert in core web technologies HTML, CSS, JavaScript, and certified as "Adobe Commerce Frontend Developer Expert" and "Fullstack JavaScript Developer".

10+
Years Exp
100%
Core Web
4+
Countries
View Projects Hire Me

Profile

About

I'm a Frontend Developer with 10+ years of experience, expert in core web technologies

My expertise lies in the foundational web technologies —HTML, CSS, and JavaScript— combined with a deep understanding of modern frameworks and best practices.

I've worked with startups, agencies, and enterprise companies, delivering high-quality solutions that prioritize user experience, performance, and accessibility. I believe in writing clean, maintainable code and staying current with industry trends and standards.

My international career spans across Germany, Austria, New Zealand, and Latin America, giving me a unique perspective on diverse markets and user needs.

Certifications

Professional History

Experience

A journey of continuous learning and professional growth

  1. 2025 - Present

    Valtech

    Latin America

    Frontend Developer

    Contributing to enterprise-level e-commerce solutions and digital transformation projects.

    • React
    • TypeScript
    • Adobe Commerce

  2. 2024

    Loop GmbH

    Austria

    Frontend Developer

    Developed e-commerce projects representing new revenue channels for companies. Focused on custom mobile-first theme modifications, email template customizations, and checkout area feature implementations.

    • Adobe Commerce
    • Magento
    • KnockoutJS
    • LESS
    • SASS
    • Mobile-First

  3. 2021 - 2024

    Webvisum GmbH

    Germany

    Frontend Developer

    Implemented React apps for checkout areas that improved speed and experience, making a positive impact on conversion rates. Built mobile-first themes and integrated custom modules using REST APIs.

    • React
    • AlpineJS
    • TailwindCSS
    • LeafletJS
    • Formik
    • Adobe Commerce
    • Magento
    • GraphQL
    • Mobile-First

  4. 2019 - 2020

    Summa Solutions

    Argentina

    Frontend Developer

    Developed a marketplace e-commerce project enabling users and businesses to generate income sources through custom design implementations and UI components.

    • Adobe Commerce
    • Magento
    • KnockoutJS
    • JQuery
    • LESS
    • SASS
    • Mobile-First

  5. 2018 - 2019

    Talos Digital

    Colombia

    Frontend Developer

    Developed e-commerce projects with mobile-first implementations, UI component customization, and checkout area enhancements.

    • Adobe Commerce
    • Magento
    • REST APIs
    • KnockoutJS
    • JQuery
    • LESS
    • Mobile-First

  6. 2014 - 2017

    InstaRent

    New Zealand

    Frontend Developer

    Implemented a frontend framework resulting in more effective development and time savings. Integrated REST services, charts, and Bootstrap framework.

    • Bootstrap
    • REST APIs
    • BackboneJS
    • JQuery
    • SASS
    • Highcharts
    • Mobile-First

  7. 2013 - 2014

    Politecnico Colombiano Jaime Isaza Cadavid

    Colombia

    Web Development Team Lead

    Led a team of five developers creating HTML5, CSS3, and JavaScript interactive content for online learning courses. Created a system of course content templates for more efficient development.

    • HTML5
    • CSS3
    • Javascript
    • JQuery
    • Interactive Content

  8. 2012 - 2013

    Politecnico Colombiano Jaime Isaza Cadavid

    Colombia

    Web Developer

    I helped transition web course content into HTML5, CSS3, and JS, which guaranteed total web browser compatibility and positively impacted the reach metrics of the offered courses.

    • HTML5
    • CSS3
    • Javascript
    • JQuery
    • Interactive Content

Technical Proficiency

Skills & Expertise

A comprehensive toolkit built over 10+ years of professional development

Core Web

  • HTML5 / Semantic HTML
  • CSS3 / SASS / LESS
  • JavaScript (ES6+)
  • TypeScript
  • PHP

Frameworks

  • React / Redux
  • Angular
  • Node.js
  • KnockoutJS
  • AlpineJS

E-Commerce

  • Magento / Adobe Commerce
  • Hyva Theme
  • Checkout Optimization
  • REST API
  • GraphQL API

Styling

  • TailwindCSS
  • Bootstrap
  • SASS / LESS
  • CSS Grid / Flexbox

Tools

  • Git / GitHub
  • Docker
  • Formik / Yup
  • Highcharts / LeafletJS

Languages

  • English (Native/Bilingual)
  • Spanish (Native/Bilingual)
  • Portuguese (Elementary)

Selected Works

Featured Projects

Every project brings different challenges, demanding unique solutions for each client

Trotec

Trotec

E-Commerce created with Magento / Adobe Commerce, implementing Hyva Themes and React Checkout.

  • Magento / Adobe Commerce
  • Hyva Themes
  • React Checkout
  • PHP
  • Javascript
  • React
  • Formik
  • AlpineJS
  • GraphQL
  • LeafletJS
  • TailwindCSS

DISCLAIMER: This project is included as a reference of work I have done as a Frontend developer within a software development team for an international agency, but ownership of the project, associated data, digital resources, etc. belong to the end client (in this case Trotec).

Live Site
Gmund

Gmund

E-Commerce created with Magento / Adobe Commerce, implementing the default Magento / Adobe Commerce tech stack.

  • Magento / Adobe Commerce
  • Custom theme
  • React Checkout
  • PHP
  • Javascript
  • KnockoutJS
  • LESS
  • SASS

DISCLAIMER: This project is included as a reference of work I have done as a Frontend developer within a software development team for an international agency, but ownership of the project, associated data, digital resources, etc. belong to the end client (in this case Gmund).

Live Site
Los Aicardi

Los Aicardi

Website created for Los Aicardi music band, features YouTube content integration and video player implementation.

  • Fully responsive
  • YouTube content integration
  • Video player implementation
  • HTML5
  • CSS3
  • Javascript
  • Boostrap
Live Demo
Testla

Testla

Website created for Testla a quality testing firm for the textile and cosmetic industry. Features different sections with all the firm's information and products for their main categories textile and cosmetics.

  • Fully responsive
  • Content rotator
  • HTML5
  • CSS3
  • Javascript
  • Boostrap
Live Site
Online learning activity

Online Learning Activity

Activity developed using vanilla Javascript and implementing module patterns, this is an example of content I created during previous experiences.

  • Fully responsive
  • HTML5
  • CSS3
  • Javascript
Live Demo

Get In Touch

Let's work together

I'm always open to discussing new projects, opportunities, or partnerships. Feel free to reach out!

[email protected] LinkedIn
Send me an email