Hi guys, just got the last of my 5 dings of this app season and I am feeling like crap...

trying really hard to keep my head up and I am hoping to apply again later this year
A bit about myself: I'm 27 y/o asian male and have 3 years of work exp in IT in the states. Undergrad & grad degrees are in engineering and both are received from non HYP ivies. For undergrad I transferred from a tier two school and my GPA in the first 2 years was 3.8 but only 3.3 for the last 2 years after the transfer...overall GPA would be 3.5 if you do a weighted average though I don't know necessarily if that's how adcom's would think. I took the GMAT twice, receiving a 690 on the first try and then a 720 (50q 38v) on my second attempt. In retrospect, my essays weren't well written and probably contributed significantly to all the dings and I'm going to work extra hard on these this time around. However I'm also wondering whether it's worthwhile to re-take my GMAT and try to bump it up to 740+ since my GPA isn't exactly stellar? I appreciate all of your help.
Edit: my EC's are relatively standard and i dont think anything stands out in particular. I conduct interviews for undergraduate admissions as an alum. Also I'm a pretty active volunteer and did quite a bit of work for low-income families and at-risk youth