Google, Hardware Operations (yes, really)
Full disclosure, I work for Google. Hardware Operations is always specifically looking for generalists and boy are good ones hard to find in a world that emphasizes specialists!
Have a look at the jobs site:
http://www.google.com/about/careers/teams/ops-support/data-center/
And an example of a specific job posting (just one of many countries);
https://www.google.com/about/careers/search/#!t=jo&jid=726002&