Responsibilities: Develop Shopify Plus platform, themes, liquid programming language and corresponding apps Design UX based from our brand standard and style guide Implement system integrations that are crucial to our success Contribute in the development of open source software, HTML5/CSS/JavaScript, and common web technologies integral to building seamless multi-channel experiences Develop testing plans and troubleshooting issues related to eCommerce issues Conduct root cause analysis and determining/developing corresponding action items Implement advanced debugging techniques and usage of browser developer tools Assist set up A/B testing with Google Optimize or understand Google Analytics Implement speed optimization for webpages Requirements: At least 3 years of experience in Website Development General experience building, launching and maintaining stores, as well as general knowledge of the admin system Demonstrable expertise with HTML5, CSS