Tineke (1968) has studied Botanical Laboratory Techniques in Wageningen. She did a field study into the strategy of farmers in potato growing in Rwanda for Dutch development organisation SNV. Next she worked for SNV within a Community Based Natural Resources Management Project in a Bushmen settlement in the north of the Kalahari (Botswana). During a three years stay in Bhutan, she specialised in bookkeeping and company administration. When she returned to the Netherlands, she worked as financial officer with the foundation "Bhutan and partners".
March 2009 Tineke started as an officer financial administration with Agriterra. Since 2015 Tineke works as financial administration analist