Jerica began studying singing at the Vinko Vodopivac Music School in Ajdovščina, with Rajko Koritnik. She continued her singing studies in Italy at the Conservatory of Giuseppe Tartini in Trieste, with prof. Cecilia Fusco. After graduation, she attended many master classes (Viktor Srugo, Eleonora Jankovic, Gloria Paulica, Ana Maria Dur). Jerica received her postgraduate degree in the class of prof. Enrick Rinaldo.
Already during her studies she had solistic concerts and collaborated with camera ensembles. Apart from the opera repertoire, she has always been particularly interested in interpretation of Slovenian songs. Thus, she interpreted, among other things, the role of Leposava in the operetta Tičnik, of Slovenian composer Benjamin Ipavac. The play was performed several times at the National Theater in Nova Gorica. In 2007, as a female vocalist, she collaborated on the recording of music for the documentary Children from Petrich, by contemporary composer Bojana Salić-Podešva. The film received the Best Music Award at the 10th Slovenian Film Festival in Portoroz. After graduation Jerica Rudolf dedicated herself to teaching. She is a professor of singing at the Ajdovščina Music School. Students from her class have won numerous awards at national and international competitions (Italy, Austria, Montenegro, Serbia, Croatia, Slovenia) testifying seriousness and dedicated work. In her teaching career she gained the professional title of ''saint'', which is rated as the highest possible in Slovenia.
For many years, Jerica Rudolf has been preparing a mixed school choir (composed of her singing students) to collaborate with professional music ensembles such as the Slovenian Philharmonic Orchestra and Choir and the Italian Orchestra Haydn from Bolzano. The choir competes equally with professional ensembles and performs large vocal-instrumental works (Tchaikovsky: Jolanta-European tour with Anna Netrebko; Mozart: Requiem; Janáček: Glagolitic Mass; Dvorak: Stabat Mater; Brahms: German Requiem; Stravinsky: Symphony of Psalms etc.). The choir collaborated several times in performing music at the Ljubljana Festival, and with the Slovenian Philharmonic Orchestra and Choir and the Spanish dance group La Fura dels Baus on performance of Carl Orff’s Carmina Burana. Jerica Rudolf is the author of several dramatic texts and theater performances (Young Mozart, Sracje leto, Potpourri of operetic melodies etc.).
Plays she directed have been performed several times by her students. For her work in the field of culture she was awarded by the town of Ajdovščina. Since 2017, she has been the president of the Society of Slovenian Singing Educators, in which she strives for development and education in the field of singing pedagogy, seeks opportunities to connect mentioned society with other related institutions and encourages the artistic creativity of pedagogues and singing students.