Thanks for the suggestions! I've been thinking of ways to show the impact of the projects but I can't think of any hard numbers for them. Most of the projects at my old job were for clients but I only ever had a vague sense of how much money we were billing them for and my current job is a government contract, I just listed that we increased the rate of study completion which we have since before the system didn't exist/wasn't digitized.
Also I graduated in 2011, but I did have a gap last year since I was hiking the AT/traveling. I've gotten mixed advice on whether to keep it on my resume or not hmm.