Victor Castrejon, Prototyping Developer in Hermosillo, Mexico
Victor Castrejon

Prototyping Developer in Hermosillo, Mexico

Member since October 12, 2017
Victor has more than 15 years of experience working as a web developer and is a pioneer in adopting front-end technologies. With pixel-perfect UI development, he focuses on semantic HTML, reusable CSS, and accessibility for all of his projects. He also has very good experience with JS frameworks like React or Angular.
Victor is now available for hire




Hermosillo, Mexico



Preferred Environment

Sketch, React, Sass, Visual Studio Code, Git

The most amazing...

...project I've created by myself was a web-based point of sale system for a retail store with stores in more than 20 cities.


  • Front-end Developer

    2019 - PRESENT
    • Built the presentation layer using the latest version of React library with the help of the following components: Webpack tool, PCSS/SCSS Preprocessor, JS/ES6, React-router, and Redux.
    • Designed and implemented the user interface for various workflows.
    • Fixed bugs and worked with support to resolve customer issues, collaborate closely with the quality assurance engineers to understand application issues.
    Technologies: Redux, Sass, CSS3, React
  • Front-end Developer

    2018 - 2019
    True Colors LLC, August 2018 - April 2019
    • Styled HTML components using CSS and SASS.
    • Built fully responsive UI elements that can be reused across the site.
    • Created a mail list client with React and PHP back-end.
    • Improved events platform to handle venues, instructors, and other crucial data.
    • Enhanced WordPress theme functionality with PHP code and modified plugins.
    Technologies: React, WordPress, Flexbox, HTML5, Sass
  • Accessbility Expert

    2016 - 2018
    • Led the accessibility team that seeks to allow the widest possible audience of users with different levels of technological endowment and sensory capacity, to access the online services of the company.
    • Created periodic audits to detect UI and accessibility problems using Wave and Axe tools as well as comprehensive manual testing.
    • Coded new React components fully accessible following Web Content Accessibility Guidelines (WCAG) 2.1.
    • Detected color problems as well as dialog enhancements and apply solutions to user interfaces.
    • Implemented the necessary code using HTML and javascript to support the WAI-ARIA standards in legacy documents.
    • Created documentation to ensure that front-end interfaces adhere to web standards.
    Technologies: Accessibility, jQuery, CSS, HTML, A11Y
  • Front-end Engineer

    2015 - 2015
    ACME Technologies Inc
    • Built HTML templates for ticket purchase confirmation emails.
    • Improved the load speed for heavy traffic sites like NFL hall of the Patriots and San Francisco Zoo.
    • Coded full responsive micro websites using CSS Flexbox, Less, and Bootstrap.
    • Created new user interface features using Angular 1.4, HTML5, and Sass stack.
    • Worked as a front-end developer for a B2B and B2C ticket event company.
    Technologies: CSS, Less, Bootstrap, Wireframing, Express.js, Socket.IO, Node.js, AngularJS
  • UI Developer

    2014 - 2014
    Anyplace by Panasonic
    • Developed UI proposals to solve the very complex interface.
    • Created the HTML/CSS responsive templates.
    • Developed Angular directives for UI widgets.
    • Determined the calls to action to improve the user experience with A/B testing different approaches to see what works best.
    • Implemented responsive web design to provide an optimal viewing experience across a wide range of devices.
    Technologies: AngularJS, PHP, Wireframing, HTML5, CSS3


  • Languages

    HTML, HTML5, CSS3, Sass, CSS, JavaScript, Less, PHP
  • Libraries/APIs

    Flexbox, Node.js, Socket.IO, jQuery, React
  • Other

    Accessibility, WCAG 2, Prototyping, User Experience (UX), Web Accessibility, A11Y, UI Testing, SEO Testing, Wireframing, Web UI, UI Audits
  • Frameworks

    AngularJS, Express.js, Bootstrap, Redux
  • Tools

    Git, Sketch, NPM, Figma, Webpack
  • Paradigms

    Agile, Photoshop Design
  • Platforms

    Visual Studio Code, MacOS, WordPress
  • Storage



  • Bachelor's Degree in Information Technologies
    1996 - 2000
    National Technological Institute of Mexico - Hermosillo, Mexico

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