The Engineer by Theresa Beachman

A growly mercenary protector with issues and the off-limits client he can’t stop thinking about.
Following the death of her brother, journalist Joanna Smith is on her own personal mission to bring down Raptor Industries, even when her obsessive pursuit leads to her losing her job. But after an attempt on her life leaves her vulnerable, she approaches Guardsmen Security for help.

Former SEAL Griff Nyland finds solace in the mountains, but when injury puts his future as a climber in doubt, he throws himself into his work as a distraction from an uncertain future. When the assignment is a demanding reporter with a penchant for getting herself into trouble, he willingly takes her on, little realizing there’s more to her than meets the eye.
Griff vows to do whatever it takes to help Joanna find the answers she needs, even if he has to navigate all her protective prickles. And as they follow a buried trail to the icy depths of Alaska, unearthing a web of deception, the attraction between them explodes.

But, with their lives on the line, Griff must first resolve his own demons in order to protect the woman who has sparked emotion in him—before time runs out and the hunters silence them for good.