Race to Redemption by Shari Elder

A woman who lost everything.
Intergalactic storm racing champion Elaina Carteret had it all—fame, wealth, men—until a horrific accident took it away. To get it back, she agrees to pose as Lainie Carter, medical transport pilot and corporate spy. Her risk-taking attitude infuriates Dr. Erik Johansen, who runs the medical outpost with an iron hand, a permanent scowl and the tightest bod on the planet.

A man desperate for redemption.
Unable to forgive himself for a past tragedy, Erik works himself into an early grave. He has no patience for the insubordinate Lainie Carter, who can’t take an order, disrupts routine, and flames his body to ash.
A planet at risk.

When the outpost is attacked, they’re thrown together in a race across the desert to stop a deadly biogenetic weapon. As a fragile trust blossoms between two damaged hearts, their pasts resurface and threaten their growing bond.