She graduated from Machakos Teachers College in 1990 and has taught K-12 since then. Waeni lives and works in one of Kenya’s most dry areas, with unpredictable rains and no major sources of livelihood which makes it hard for poor parents to educate their children. She has, however, championed the cause of less fortunate children by serving as the leader of a women group in which she teaches how to use local resources to educate their children.