Parviz is a hydrogeologist, specialising in groundwater assessment. He has over 15 years of experience relating to the assessment of groundwater resources, hydrogeological assessments and groundwater flow and contaminant transport modelling. He has also been involved in the preparation of AEE documents for various consent applications related to groundwater resource and environmental effects assessment.
Additionally, Parviz has developed numerous groundwater models throughout the greater Auckland area, including a comprehensive groundwater model for the whole Auckland Isthmus as part of the Global Aquifer Study (GAS) and has won the modelling award for the best paper at the Water NZ Conference in 2010.