The Jump Point (The Sirona Cycle Book 1) by Hartley James

Dragged from her homeworld, young Mahra Kaitan must discover the key to fighting an insidious alien threat. The Sirona promise to subvert and control humanity, but it is Mahra alone who holds the solution. She just needs to find out what it is before it's too late.

Daughter of Atrocity (The Sirona Cycle Book 2) by Hartley James

Back from their encounter with the Sirona, Mahra and her team must employ their newfound knowledge to counter the ongoing threat. After the Sirona start showing their hand, the time to act is upon the team. Mahra must find out more about her new abilities, and also discover the source of the mystery that is starting to follow her. It is now becoming much more than revenge. It's about all of their futures.