Mr Baumann-Winn is the Headteacher at Carshalton High School for Girls joining in September 2024. His professional background is as a lawyer working in the corporate sector. He had a career-change to education in 2009, and prior to taking his current role, was Assistant Head at St Marylebone CE School for Girls in central London and then Deputy Head at The Kingston Academy in Kingston upon Thames. As well as degrees in Philosophy & Politics and Law, Mr Baumann-Winn has the National Professional Qualification for Headship (NPQH).