Any advice on a realistic lower salary for the first 6 months probationary period, while the staff prove their worth.
probationary period in Poland is only 3 months - you can by-pass the thing by hiring the person for proabtionary period for a different position but it won't be seen favourably by the employee
the Hayes table seems pretty reasonable - I think if you want to attract good people you can't pay them less than 2000 even for the proabtion