Ozero

Joseph Picard's first novel, Lifehack, follows Regan as she deals with a technologically-driven zombie outbreak which quickly results in her brother's death. As she struggles to find his reanimated body to put it to rest, she meets Alisia, and falls in love. Much to Regan's irritation, Alisia is straight.
And the creator of the outbreak is still at large.

Watching Yute takes a somewhat more dramatic approach to some dangerous uses for nanites. Leftenent Cassidy Stanton thought she only had to worry about her personal life until her new unit becomes the target of dangerous men, in a conflict over a hidden fleet of microscopic spies- which has its own plans. When tragedy strikes, Cassidy is given the duty to do justice to the fallen, as long as she can live with herself.