Ioanna studied classical music at University of Pecs in Hungary where she earned her masters on music teaching and choir conducting, and Jazz performance at Bornemissza Maria's singing school.

In Hungary she was the lead singer of No More Blues Band until her return to Cyprus.

Since 2007 she is the instructor for Voice and Jazz performance at the European University Cyprus and an active singer in the Cyprus Jazz scene.

In 2012 she recorded GET OUT OF TOWN, a collection of Jazz Standards arranged by saxophonist/composer Chris Byars.

Ioanna has participated in many known local Jazz Festivals such as Aglanjazz 2013, Pomos 2016, Old Port Jazz 2017, and some abroad like the Düsseldörf Jazz Rally 2017.

Her latest performance was with The Gershwin Project as Ioanna Troullidou Sextet at the University of Cyprus Cultural Festival/Axiothea 2019.

Since 2015 she has been the Vocal Jazz Instuctor at the International Cyprus Jazz Workshop faculty lead by Jazz Education Abroad and Dr.Gene Aitken among other Jazz instructors from all over the world.