One of my recent projects was for a data science company called Strong Analytic's where I built out a product for them to ingest business data from different sources for companies and then display a set of forecasted data for each source anywhere from 1 week to 12 months down the road. I handled building out the back-end in Laravel Spark & Postgres with TDD which primarily consisted of integrating the different data sources API's (such as Google Analytics, Stripe, Paypal, or even custom MySQL queries) and then building out an internal API for the front-end. They handled generating the forecasted data, and then I also build out the front-end  was a full single page application built in React, React Router 4, and React Ant Design) I also built out the cloud infrastructure using AWS and Terraform. While the product isn't fully released yet, I would be happy to give you guys a demo.