So you want to make sure you live your geek interests as part of your career? I've discussed how you can do that with what you do, and what you create, so let's look at another way.
You can live your interests in who you work for.
There are companies and businesses you can work for, clients you can support and consult for, that do things that fit your interests, your geekery, your otakudom. In working for them you can support the things you care about and are interested in even if you don't use "geeky skills" or even have much involvement in actual product.