Ms Williams was appointed to the position of Deputy Secretary in February 2017.
From 2011 to 2013, Ms Williams was the Executive Director of the Australian Passport Office and Australia’s Global Ambassador for Women and Girls (concurrently). She served as Australia's High Commissioner to Malaysia (2007-10) and undertook earlier postings to Chile and Syria.
In Canberra, Ms Williams has held senior positions including First Assistant Secretary, Corporate Management Division (2005-07), First Assistant Secretary, Diplomatic Security, Information Management and Services Division (2004-05) among others.
Ms Williams holds a Bachelor of Arts in Asian Studies (Hons) and a Masters of Applied Anthropology and Participatory Development from the Australian National University. She speaks Indonesian and has studied Spanish and Arabic. She is married and has four children.