Vallarie is an early career lawyer who has professional qualifications in Revenue Administration from the Kenya School of Revenue Administration and is a Certified Professional Mediator accredited by the Mediation Training Institute East Africa. Since 2018, she has worked as a researcher for the Committee focusing on fiscal policy and development. Her passion projects include the digital economy, Internet Governance and the role of the Internet in poverty alleviation, which have informed her interest in internet sector fellowships and organizations. She has been a Digital Grassroots ambassador and a representative of the Youth Internet Governance Forum movement in Kenya for the last three years. She is also part of the fair digital business-working group that gathers young people globally to give their inputs on various thematic areas ahead of the annual IGF.

In 2019, she received fellowships from the African Network Information Centre (AFRINIC) in Angola and the Kenya Society of Internet Governance (KESIG). She was also an ICANN 65 Nextgen participant in Morocco. In 2020, she was selected to be a program ambassador for ICANN 68 and 69 to guide new Nextgen participants joining the organization. She was also selected as an Internet Governance Forum Ambassador by the Internet Society. She loves reading up on Korean Culture, and travelling, and plans to continue travelling to more countries post COVID-19.