About using *and*, I've learned it is usually used in lists, between the last two items. For example:
>I like movies, traveling *and* going out with friends.
Please tell me if the use of *and* twice in this next example is correct. The first *and* is used between the last two items of the list, and the second is used to combine two things in the second part.
>I am a software developer who has permanent residence, Bachelor degree **and** 4 years experience in .net for developing new software **and** doing enhancements in existing once.
The "and" is not the only problem. Should be: I am a software developer who is a permanent resident of (state the place here). I have a bachelor's degree with four years of experience in .net and do enhancements of --the rest of the sentence doesn't make sense--What do you mean by "existing once?'
