Warranty Void

Jake Miller fixes jets for billionaires. He doesn't save galaxies.
But when a mysterious crate arrives at his hangar containing alien technology beyond human comprehension, Jake's ordinary life explodes-literally. He wakes up in a military detention cell with a Manifold Core fused to his brain, giving him abilities he doesn't understand and can't control.
Accused of sabotage and partnered with Xylar-a deadly Nocturne warrior who sees him as little more than a "meat servo"-Jake is thrust into the front lines of humanity's war against the Void Swarm. The alien horde has been systematically destroying Concord colonies, and no one knows why.
But Jake discovers something terrifying: the Swarm isn't mindless. Someone is coordinating their attacks. Someone with access to classified intelligence. Someone who has Earth on their target list.
Armed with nothing but a wrench, a bad attitude, and an alien supercomputer in his skull, Jake must:
-Stop a saboteur from destroying a military outpost
-Decrypt enemy communications that could expose a galaxy-wide conspiracy
-Lead a suicide mission into uncharted space to eliminate the Swarm's mastermind
-Somehow not get killed by his own partner
Warranty Void is a fast-paced military sci-fi adventure that combines the technical problem-solving of The Martian with the alien warfare of Ender's Game and the unlikely hero's journey of Guardians of the Galaxy. Perfect for fans of space opera, military science fiction, and protagonists who solve problems with duct tape and sheer stubbornness.