Tech companies have a Baby Boomer problem

Millennials are five times more likely to click on jobs with "developer" in the title, such as front-end developer, Android developer, web developer, or Java developer.

By contrast, Boomers are more likely to click on job listings for engineering positions and managerial roles.

Some 43% of Indeed survey respondents said they worried about losing their job because of their age. And 18% said they worry about that possibility "all the time."

San Jose and San Francisco are the top two places tech workers of all ages seek to work. But Baby Boomers are much more likely than younger workers to look elsewhere for employment opportunities, Indeed found. And Boomers are more likely to seek employment in places younger workers shun.

For example, Huntsville, Alabama, ranked third on Boomer techies' list of most desired places to work in Indeed's study. Raleigh and Durham, North Carolina, ranked seventh and ninth, respectively. None of those cities made the top 10 list for either Millennial or Gen X tech workers.

Meanwhile, for younger tech workers, Austin, Texas, ranked number four after Seattle, but it didn't make the Boomers' list at all.

Only a fifth of survey respondents think the Baby Boomer generation is underrepresented at their company.

Only 26% of respondents to Indeed's survey said that the average employee at their firm was over 40.

That's not surprising given findings of other studies. According to data from 2014 collected by PayScale, a salary analysis company, the median age at Facebook is 28, and 30 at Google.

By contrast, the median age of members of the American labor force as a whole is 41.9, according to US Bureau of Labor Statistics.