Nairobi, May 7 -- In most Kenyan homes, the term nanny is often used interchangeably with house help. But one girl is on a mission to set the record straight. She shows up at your doorstep with a bag full of toys, a contract form, and enough energy to keep your toddler busy and away from the screens. She does not live with you, cook or wash your dishes. But while she is there, you don't have to worry about minding the children. She will feed them, change diapers, and attend to them fully.

Her name is Audrey Inyanje Lwoyelo. She is 27 years old and goes by the brand name Travelling Nanny 254.

"I did not just want to be the traditional stay-at-home nanny," she says. "I wanted to attend to many families, which meant moving from one locatio...