I was employed in a senior position to take over a role that, before I started, was played by very expensive external consultants. I contributed massively, launching several important projects and drawing a very specific strategy for further development. These were all highly recognised and accepted to be implemented. The pressure was extreme for me to work hard to finish quickly and I worked crazy hours to manage that.
Then I was fired. I could be as I was still in my probationary period.
The more I think about it, the more I have the impression this was the plan from the beginning. I was employed to do a very specific job, which the company needed to be done just once (or: just once in a period of time). The fact that the company is now seeking to employ just much more junior (cheaper...) people fortifies my impression. I feel used and in not a nice place given I need to explain that during job interviews.
Is there anything I could do to prevent this from happening in the future?