Dr Williams completed her MBChB (2001) degree in medicine at the University of Stellenbosch.
After her internship and community service, she worked as a medical officer in the department of psychiatry in Durban at King George Hospital. She then worked in the UK as part of the Primary Mental Community Health Team (PMCHT).
In 2006, commenced psychiatry training at the University of Cape Town, she then completed her FCPsych (2010) in psychiatry at the College of Medicine,
Dr Williams worked at Lentegeur Psychiatric Hospital as a consultant in the female admissions and the intellectual disability units respectively. Dr Williams has been working in private sector since 2011.