If behavior is designed during dynamic modeling, it is the static models, such as the class diagrams, which give the overall structure to our software, and allow us to divide the work into manageable and maintainable chunks.
Static UML models include
and deployment diagrams.
The Importance of Object Design Skill over UML Notation Skill
UML is only an ancillary tool to object design. The real skill is the design, not the diagramming.
Seeking a software design job because you are good at making UML diagrams is like seeking a career as a novelist because you have good penmanship.