After completing his bachelor's degree in economics, Falae joined the civil service as the assistant secretary of the National Manpower Board. He later became a principal assistant secretary of the board. In 1971, he was transferred to the Central Planning office and by 1975, he was a director at the planning office. During his stint at the planning office, the department was actively involved producing the third national development plan for the country and conducting a revision exercise after a change in government. In 1977, Falae was appointed permanent secretary (Economic dept), Cabinet office.