Is the Tracers series related to the Wolfe Security series?
Yes! The Wolfe Security series is a spinoff of the Tracers series. The founder of Wolfe Security, Liam Wolfe, is the main character in the Tracers book Shadow Fall. Jeremy Owen and Mark Wolfe also appear in both the Tracers series and the Wolfe Security series.
All of the books in both series have a stand-alone plot and do not need to be read in any particular order.