Sierra Perks, Rails, Chrome, Beta, and Pinterest should be capitalized.

"Local restaurants and bars" should not be capitalized beyond the first letter. Use "and" not "&".

Your descriptions intermingle functionality with technology. Might be clearer to break up each one into two paragraphs - what you did, and then how you did it.

Then at some point, read this: https://training.kalzumeus.com/newsletters/archive/consultin...