Born in Moscow into a family of violinists, Eleonora Ryndina began playing the violin at the age of 4 with her mother Evgenia Astakhova. She first studied at the Gnessin Music School with Valentina Korolkova, then at the Tchaikovsky Conservatory with Asia Kushner. After winning the international competition Klassicheskoe Nasledie in Moscow, she continued her studies with Pierre Amoyal at the Haute École de Musique de Lausanne where she obtained the orchestral diploma and a Master Soloist with the congratulations of the jury. She obtained a Master's degree in interpretation in Eleonora Turovsky's class at the University of Montreal, where she won the OUM Competition, and then a postgraduate diploma and a Master's degree in teaching with Mihaela Martin at the Haute École de Musique de Genève.

She followed masterclasses with Alberto Lysy, Ivry Gitlis, Attila Falvey, Stephan Picard, Alexander Trostiansky. Since the age of 12, Eleonora Ryndina has been playing as a soloist. She has performed with the Bolshoi Theatre Orchestra in Moscow, the Lausanne Chamber Orchestra and the Lausanne Sinfonietta. She takes part in chamber music and contemporary music festivals. She has performed with Namascae Lemanic Modern Ensemble. Eleonora is a member of various orchestras and ensembles in Russia, Switzerland, Mexico, Italy, Canada and many of her concerts are broadcast by the main radio stations of these countries.

She joined the Orchestre de la Suisse Romande in September 2010. With Eugenia Pilyavina on piano, Mikayel Matnishyan on cello and Lyda Chen-Argerich on viola, Eleonora Ryndina is part of the Barton Ensemble which rediscovers forgotten composers, exploring music from various periods and horizons. She collaborates with other artists, such as Maria Tretyakova and Dmitry Rasul-Kareyev, and was presented as an ambassador for Swiss music at the 2015 International Cervantino Festival in Mexico.