Gregg Mellis

- Constructed a Firebase cloud-function back end with Node.js for the Ellipsis mobile app and web dashboards. - Built a front-end visualization dashboard with Vue.js, chart.js, and D3. - Constructed an automatic voice call center using Twilio and Node.js together with an NLP API. - Created a React front-end admin dashboard for complex table data visualization with user-friendly search features. - Used Google Cloud Platform heavily, namely Google Storage, BigQuery, Speech-to-Text API, and Firebase.

- Developed headless CMS with React.js, Node.js, and Strapi - Upgraded a powerful SaaS using Vue.js and Vuex, Vuetify framework - Updated and added new RESTful APIs by using Apollo GraphQL + AWS Lambda function - Improved search algorithm and architecture (+30% Big O) - Implemented Aherf service for SEO and added JSON-LD for better search user experience. - Increased CTR(Clickthrough rate) depends on A/B tests (+24% improved)

- Upgraded architecture of an enterprise clothing platform React, Node, MongoDB, Firebase (+7% improved in a number of requests per second) - Developed headless CRM by using Strapi, Node, and React Redesigned database MySQL to MongoDB - Developed price analysis platform depend on Price API and Google Merchant API with React and .Net - Set up and administered a continuous integration system based on CruiseControl.NET, including nightly builds with unit tests run and delivery to the test servers.

- Acted as a Full Stack developer in a 30+ dev team for 2 years Improved UI/UX with React, Node, styled-components, d3.js, TradingView - Developed and improved performance of +10 animation effects with custom styling - Simplified global state management by using Mobx - Suggested and Integrated real-time communication mechanism with Socket.IO and ws(npm package)

- Launched a Team Management CRM platform with jQuery, Node, Firebase, Salesforce and Twilio API - Integrated Socket.IO for real-time team collaboration using NodeJS - Developed chrome extension app for video conferencing by using WebRTC and Socket.IO