Try the following code in your jobstep on both servers.

if (select

ars.role_desc

from sys.dm_hadr_availability_replica_states ars

inner join sys.availability_groups ag

on ars.group_id = ag.group_id

where ag.name = 'name of your AG group' -- you need to edit this line!!

and ars.is_local = 1) = 'PRIMARY'

begin

insert your stored procedure here (EXEC database.schema.sp)-- you need to edit this line!! because SQL server parses your code this needs to be a stored procedure to avoid errors.

end

As database for the job, select master