comma after introductory phrase [preposition; serial c.]: Over the...

How would I properly punctuate/create this sentence, from a cover letter, that contains multiple componets?
Thanks!

Over the course of my career, I have held increasingly responsible software development roles including systems analyst, business analyst, and project manager.

I'm not sure what your question is, KenB. The punctuation that you have used is only questionable as to whether a comma should be used after "career". Some would use one, some wouldn't. Some folks would use a comma after "analyst", some wouldn't. Personally, I would use exactly the punctuation you have used.

I agree with Dimcl.

Thank you so much!

I think I would remove the two commas that aren't necessary

Over the course of my career I have held increasingly responsible software development roles including systems analyst, business analyst and project manager.

For a longer list of roles I might put a colon after "including" and semicolons after each item, but with only three roles it isn't necessary.

Thanks everyone, I should have been more clear in my question, this is my very first post. My sticking points were:

1) Should I put a comma after "Over the course of my career"? The potential answers I see are:
- Yes, because it is a "long" introductory phrase.
- No, because even though it is an introductory phrase it is highly correlated to the rest of the sentence.

2) Should I put a comma after the word "roles".
- Yes, because it seems like a point for a pause.
- No, although it seems like a point for a pause, it is not needed there.

3) Should I put a colon after the "including"?
- Yes, to introduce the list.
- No, because the word "including" introduces the list.

I like the responses very much. You guys are great!

Ken