Ms Williams was appointed to the position of Deputy Secretary in February 2017.
Her responsibilities include: International Security; Consular and Crisis Management; Humanitarian, NGOs and Partnerships; Legal; Middle East and Africa; the Australian Safeguards and Non Proliferation Office and the Chief Auditor's Office.
Ms Williams represents the department on the Council for Australian-Arab Relations (CAAR), and the Advisory Group on Africa Australia Relations (AGAAR). Ms Williams attends, as required, the Australian Government Crisis Committee (AGCC) and the National Crisis Committee (NCC).
From 2011 to 2013, Ms Williams was Australia's Global Ambassador for Women and Girls. She was also the Executive Director of the Australian Passport Office. 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.
Ms Williams is the Department's Women in Leadership Band 3 Advocate.
She is married and has four children.