Shadowrun: Corporate Business - Shadowrun Novella, #28

A CORP'S SHADOWS ARE EVEN LONGER.A "cleaner" for the megacorporation Ares Macrotechnology, Maria Payne is a model employee-efficient, attentive to detail, and very deadly. She navigates every danger that comes at her, whether it's on a mission in the field, or walking the political tightropes on her own corp. But when Internal Affairs takes an interest in her, Maria begins to suspect something is going on.
Her suspicions are confirmed when what should be a simple convoy heist nearly goes lethally awry. And when Maria's investigations find an innocent man marked for death, she suddenly has to decide between the corp that has given her everything and the fate of one man.and if she makes the wrong choice, she could be targeted for termination by her own employers.