Appen Limited is a company that provides data used for the development of machine learning and artificial intelligence. In order to provide this data they need help from workers all over the world who speaks different languages.
You can apply to be part of various different projects, which can be done from home in your spare time. Some projects offers up to 20 hours of work a week, while other are more sporadic. The amount of projects depends on your location and your language.
In some periods it will be possible to earn more than $1.000 before taxes a month, which you can use for investing. You send your invoice once the month has ended and your salary will be paid the 15th the following month.
If you are interested in applying for the projects at Appen, it can be done here: