Irena Nunčič graduated from the Faculty of Law at the University of Ljubljana and Faculty of Economics and Business at the University of Maribor. She started her career at the Bank of Slovenia working on payment systems. Afterwards, she participated in the project for setting up the treasury single account system at the Ministry of Finance.
She gained additional work experience as the head of the division at the General Tax Office dealing with tax accounting, enforcement, payment transactions and tax register. She was Director of the Šmarje pri Jelšah Community Health Centre for two terms of office, while in recent years she worked as Head of the Non-Medical Services at the Celje Community Health Centre.