Does age matter to get a job/postdoc? I stayed at home after I got married, but at 25 years old I decided to study History. Now I've finished my BA, MA, PhD and postdoc. I've got several publications and I can say I have a very accomplished career, but I'm wondering if my age (now 40 years old) will affect me eventually. I'm Mexican and my husband is American-Belgian, and he asked me to decide where we should live, right now I'm looking for a job/postdoc and I do not know what is the best option. What do you think?
In principle, age discrimination is illegal in the US and various other countries in the world.

In practice, there are a lot of apparently legal ways to get around age discrimination (e.g. discriminating based on experience, work history) and I have heard of first-hand accounts of supposedly illegal discrimination at various institutions throughout the world.  There are a number of employment lawyers who go around arguing these kinds of cases.

However, at least in the US, being good and well-known is an inoculation against much of this discrimination.  Ultimately, if you are successful and active, at any age, you will be hirable.