Zentrex is a small sole proprietorship owned by my brother. The company's an allround IT specialist and does work from repairing smartphones, tablets and computers to selling equipment.
I did two projects for Zentrex. The first one being
logo and business cards design, the second one being an
invoice manager. This invoice manager is a web
application to easily generate pdf invoices. It has a backend that
stores customers and types of expenses so they can easily be
filled in through dropdown menu's in the frontend. The entire
layout and content of the pdf can be customized by editing a
template file. In the template some syntax can be used to
automatically fill in customer info, expense data and cost.
The frontend was made with Angular, the backend with Node.js, Express and MongoDB.