This was my first job, which means that it mainly allows me to discover how it works in a big company.
Since I worked as a project leader, I had to develop my skills to understand the needs of the client, to create gantt, to present the results, ...
In general, the purpose was to create a web application to centralize or make easier a task. Most of the time I made a theme based on NodeJS and Jade which is an alternative to HTML. Plus, I used SQLite and SQL to create and manage my databases.
All of this also implies that I had to do some support which means make a formation, answer to their questions and fix the bugs.
Another part of my job was to collect data and to clean it and put it in the correct format. Most of the time I was doing this manually using Excel and after this, when it was possible, I created a Python script to do it automatically.