grammar - Can you use the word "where" in a sentence this way?

'Where' sounds perfectly alright if you want to draw attention to your entire time spent at the ABC company. But if you want the details in the second part of the sentence to explain the actual job mentioned in the first part, then it might be better to use 'in which capacity'. So the sentence reads:

I was employed as a project manager at the ABC company, in which capacity I was responsible for managing a team of 20 employees.