I like the formula of "I am an expert <ONE programming language> developer with a focus on <ONE specialization> and <ONE business or development model>." Let me try it on for size:
I am an expert Python developer with a focus on Azure-based cloud solutions and enterprise development in highly regulated industries.
Sounds about right, even though I've never worked at a place where all 3 aspects were in full force. It stings a bit to shave off the other hundred or so things I can do, but that's marketing for you!
That is simply emphasising your skills to meet the customers requirements.
If the company used Amazon rather than Azure you would change your main message to show that.
Any company should also read the rest of your skills and showing say experience of other cloud solutions would be a nice to have but not a requirement.
Your CV will change for each application you make to emphasis the correct things.
I am an expert Python developer with a focus on Azure-based cloud solutions and enterprise development in highly regulated industries.
Sounds about right, even though I've never worked at a place where all 3 aspects were in full force. It stings a bit to shave off the other hundred or so things I can do, but that's marketing for you!