Below is my codepen link. I made it somewhat mobile friendly too.
3 quick touch-ups:
1.When viewed horizontal, profile picture, summary and first project thumbnail need to be seperated(by divs), they are all over lapping.
When viewed vertically, first thumbnail still overlap with profile summary.
Contact buttons texts is not fully visible when viewed vertically.
Lastly, I recommend linking actual project URL to project thumbnail when image is clicked. This can easily be done with an img tag inside anchor tag. I personally would get rid of the buttons.
Keep on building and happy coding!