My team has five middle-aged guys[1] on it, myself included, out of a total of 9. Three of the other four were hired by me. I can only live in hope that next time I need a job I'll be able to find somewhere that values experience as much as we do[2].
[1] It's changing slowly but female software engineers are very much in the minority in Cambridge. I suspect, although cannot prove, that the skew is even more pronounced amongst those of us in our 40s and beyond.
I have noticed the female SWE are in the minority in the Boston/Cambridge area, too.
At my first company in Boston, I was the first and only female programmer for a good year and it wasn't for lack of trying to hire more. I don't remember another female programmer on the web side (there were quite a few on the hardware side) but most of the team was over 30, with family, and was a good range of ages.
Now, I manage a team of five developers, only one of which is another woman. I'm 40 and she is 64. Then again, the youngest person on my team is 35 so we don't seem to have the problem of ageism in our company, thankfully. When we were looking for extra help, it was very difficult to even get people in to interview, let alone someone experienced enough. I'm hoping the job market for tech continues when I need a job again!
[1] It's changing slowly but female software engineers are very much in the minority in Cambridge. I suspect, although cannot prove, that the skew is even more pronounced amongst those of us in our 40s and beyond.
[2] Also, we're still hiring.