Hi, I have 4+ years experience (full-time with highly satisfied customers) in Web App and Web-based Desktop App development, familiar with HTML, CSS, Javascript (AngularIO, ReactJS, Node.js, Polymer, jQuery), D3 & Plotly (Charts, Graphs and Data Visualization) and MySQL
The 20 day delivery time is just a ballpark. Once we align on the exact requirement, we shall confirm the timeline.
I'm freelancing more like a hobby because of passion :)
Looking forward to your response.