| Czech | mother tongue |
| English | Technical terminology Certificate of Advanced English – C1 – 2015 |
| German | Active communication Österreichisches Sprachdiplom Deutsch – B2 Mittelstufe Deutsch – 2010 |
| Hungarian | Simple basic speaking and understanding |
| Czech | mother tongue |
| English | Technical terminology Certificate of Advanced English – C1 – 2015 |
| German | Active communication Österreichisches Sprachdiplom Deutsch – B2 Mittelstufe Deutsch – 2010 |
| Hungarian | Simple basic speaking and understanding |