Career public servant Debbie Power has been appointed chief executive of the Ministry of Social Development.
Currently the Deputy State Services Commissioner, Power will take up her new role in early February next year.
Current chief executive Brendan Boyle steps down at the end of this year.
Power started her public service career in 1980 as a frontline case manager at the Department of Social Welfare, now the Ministry of Social Development (MSD).
As chief executive, she will head a department of around 6900 staff and oversee an annual budget of about $25 billion.
"Power is a seasoned public servant and a proven leader. She is compassionate and determined and able to engage staff around a sense of service and purpose.
"It is a privilege leading a ministry that plays such an important role for New Zealanders, and I have no doubt her leadership will ensure that the ministry delivers accessible, fair, and transparent services," State Services Commissioner Peter Hughes said in a statement.
Power's appointment comes as MSD undergoes a culture change.