S/he did Education and Management consultancy in different sectors and s/he still gives retail management personal development lessons at Boğaziçi
Remarks about the translation
Boğaziçi is the name of a university in İstanbul so it should be "Boğaziçinde", and there may be or may not be a comma between "perakende yönetim (,) kişisel gelişim dersleri".