You can try to hire a temporary employee who will be engaged in recruitment. Or, contact individual firms that will select staff for you in your company, they do not always charge a little for their services.

I recommend you do not do everything but apply to PEO in Russia https://wehireglobally.com/poland/ They will provide you with a complete package of documents for the employees and select the personnel. You merely have to follow and continue to develop your business without wasting your time on staff recruitment and signing a contract. Another of the advantages will be that PEO companies carry out calculations on salary payments to employees and how much taxes they have to pay for an employee.