In a revamp in the coaching set-up, rugby development officer and specialist skills coach Derek O'Riordan and the former Scotland internationalist Roland Reid will be her assistants.
The 34-year-old Maxton played at centre for Murrayfield Wanderers and coached the boys at Bellshill Academy, where she was a PE teacher. She then coached Wanderers women's team and looked after the Scotland women's development squad before taking on the role with the under-20s. She will continue to be head coach at Wanderers in addition to her full-time teaching job.
Maxton said: "I feel excited by the challenge of preparing the squad for international competition. I've been coaching through the performance pathway for eight years now and feel this is the time to step up. I'm used to managing my time with teaching,"