Checkmate by Jaye Pratt

Team Zeus were designed to protect Jolie and they swore that they would do whatever it takes to keep her safe, even if that meant she would never forgive them. They have been trying for years to take down the owner of Olympia Corp–Mr. Z. Which has proven easier said than done.
Jolie is no longer the little girl they swore to protect, she is all grown up and refuses to be the same person she used to be. She has finally figured out all of the secrets and lies but at what cost? To have it all ripped away and her heart left shattered in pieces. She has no choice but to pull herself together to get the vengeance she deserves.
With her armour in place, Jolie plans to get close to Mr. Z and exploit his weakness, so he’ll let his guard down.
Old wounds are reopened, and lessons are learned. One way or another, she will bide her time and use her gifts to find her way back into Olympia and take it all down.
Brick by brick.
Once and for all.