Mid career switchers also start from lowest GEO grade and pay scale in their untrained year.

Some mid career people may also hv years of experience
dealing with youth or kids outside of their corporate work eg social work etc

If you show adaptability, ability to learn fast and value-add, in addition
you also bring to the table, maturity and dexterity in handling interpersonal
relationships, management of tasks etc, your other past skills eg IT and your school/RO
appreciate these, there's a good chance of fast promotion or increment when demonstrate
these skills consistently well. Being humble, non self defensive, good relationship
with RO ...are these are important as well.

The same applies for teacher switching careers.