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Calvin Koepke, Software Developer in Boise, ID, United States
Calvin Koepke

Software Developer in Boise, ID, United States

Member since April 11, 2017
Calvin has over a decade of experience in both front-end and back-end development. He specializes in WordPress and front-end engineering yet he also has experience in modern technologies and frameworks like React, Vue.js, JavaScript, CSS, and PHP. He is a clear and efficient communicator and has both developed and deployed high-scale WordPress solutions and websites.
Calvin is now available for hire



  • PHP, 8 years
  • CSS3, 5 years
  • WordPress, 5 years
  • Genesis Framework, 4 years
  • Gulp.js, 3 years
  • Webpack 2, 2 years
  • JavaScript 6, 2 years
  • React, 2 years
Boise, ID, United States



Preferred Environment

NPM, Webpack, PhpStorm

The most amazing...

...thing I've built is a large-scale, responsive WordPress website that achieved an average load time of ~1 sec without sacrificing usability or design accuracy.


  • Owner | Developer

    2018 - PRESENT
    Freeshifter LLC
    • Built a performant and responsive website for Blank on Blank, converting a high-profile design into a functional and flexible website.
    • Developed open-source themes for the WordPress community.
    • Ran a front-end engineering community.
    • Build highly performant WordPress websites.
    • Managed hosting and configuration via DevOps experience.
    Technologies: JavaScript, WordPress, React, HTML, CSS
  • Senior Web Engineer

    2017 - 2019
    Zeek Interactive
    • Created high-scale WordPress websites.
    • Contributed to company open-source projects.
    • Built performant front-end code.
    • Led the development of enterprise-level projects.
    Technologies: PHP, WordPress, JavaScript, HTML, CSS, React
  • Front-end Engineer

    2015 - 2017
    Rainmaker Digital
    • Improved an internal codebase through coding a configurable, drop-in solution—saving our internal development team 50 hours a year in repetitive tasks.
    • Identified, suggested, and implemented new technologies and tools into our workflow that resulted in 300% increased efficiency and maintainability.
    Technologies: PHP, WordPress, JavaScript, HTML, CSS
  • Product Designer | Developer

    2014 - 2015
    The Audience Awards
    • Redesigned, developed, and documented a new company brand across the site.
    • Designed and detailed an internal style guide, utilizing Atomic Design principles, doubling the production rate of backend developer tasks and implementations toward deployment.
    Technologies: Laravel, PHP, CSS, HTML, JavaScript


  • Startups for the Rest of Us (Development)

    I designed and built a custom theme on WordPress for a popular podcast with over 450 episodes.

  • Freeshifter Website (Development)

    This is my portfolio and company website. it was built to load in under one second on most platforms and uses a custom Stripe integration for checkout and payment options. I also implemented an advanced bundling configuration via Webpack and TailwindCSS, including stripping out unused CSS from the production file.

  • Genesis Starter Theme (Development)

    I composed this powerful, developer boilerplate for WordPress theme builders who use the Genesis Framework.

  • Genesis Responsive Menus (Development)

    I created this plug-n-play jQuery plugin for adding accessible, responsive menus to any Genesis child theme.

  • Genesis Simple FAQ (Development)

    I developed an accessible, performant WordPress plugin that adds FAQ management and rendering to your Genesis child theme.


  • Languages

    PHP 7, PHP, CSS3, JavaScript 6, HTML
  • Frameworks

    Genesis Framework
  • Tools

    Gulp.js, Adobe Photoshop, GitHub, Webpack 2, Sketch
  • Platforms

  • Other

    WordPress Plugins, WordPress Themes, Atomic Design, Styled Components
  • Libraries/APIs

    React, jQuery
  • Paradigms

    Functional Programming, Object-oriented Programming (OOP)
  • Storage

    MySQL, MongoDB
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