Shalvie grew up in Johannesburg, South Africa and received her BSc in Mathematics from the University of South Africa. Shalvie is a 'Yoetzet Halacha', a guidance councillor for women on matters of women’s health and Jewish law. She is a Jewish studies teacher at Hasmonean Girls High School, as well as a senior educator for Aish UK.
In 2020, Shalvie set up Chelkeinu, an organisation of Jewish Futures, dedicated to learning and leadership for women in the community. Shalvie is an exceptional educator and speaker and shares her words of wisdom to women across the country.