In your personal opinion, what should I put here? Mind you, I already have a Background section so I don’t see the need to talk about my own person here.
If you already have a about section I suggest that made something fancy whith this part, maybe center the name with a subtitle, make it big and beauty, see others portfolio for inspiration or pens in codepen to see what look better and then reply it.
Seeing the state I think that somethin in blue tones, or a background that remembers the IT world, maybe you can add an effect for when the users scroll down.
For example, see:
a crazy scrolldown effect:
simply blue tones that look elegant:
or simply try and experiment, personally I look a lot for examples because have 0 imagination but lets doing experiments and see what looks nice or not
Luck!
pd: forgive my english
edit: somewhere I saw a portfolio that post the dev photo in the right with a few stats of his abilitys, maybe a good idea in this case to bring a "first, fast vision " of your profile