In 1919, Hinder joined Sydney department store
Farmer & Co. Ltd as welfare superintendent. She was also active in the
Young Women's Christian Association (YWCA) and with
Jean Stevenson helped establish the City Girls Amateur Sports Association. She visited China, Japan, Canada, the United States, England, Switzerland and Norway, attending an
International Federation of University Women conference in Oslo.
China in Hawaii Hinder first visited Shanghai in 1923 at the request of
World YWCA industrial secretary
Mary Dingman. In 1926, she moved to Shanghai to work in the industrial department of the National YWCA of China. She "engaged in efforts towards the amelioration of industrial conditions, particularly for women and child factory workers", and worked for better regulation of labour in the
Shanghai International Settlement which remained outside of Chinese jurisdiction. In 1928, Hinder attended the inaugural
Pan-Pacific Women's Conference in Hawaii where she was organising programme secretary. She was also part of the Australian delegation to the
Institute of Pacific Relations conference in
Kyoto in 1929. She resumed her work with the National YWCA of China in 1930 as international education officer, where she wrote a series of articles for the
North China Daily News on new industrial legislation and assisted sociologist
Chen Da in his studies of the legislation. Hinder took up an appointment with the
Shanghai Municipal Council as chief of its social and industrial division in 1933. Her activities were limited by the council's refusal to adopt Chinese labour laws, restricting her to "disseminating information about industrial health and safety and by providing training for workers". She was also given responsibility for monitoring the welfare of
mui tsai (young women in various degrees of domestic servitude) within the city. She remained in Shanghai until August 1942, several months after the Japanese occupation of Shanghai. ==Foreign Office and UN work==