* Job experience in Arian Shimi Company, purification of engine oil and converting acidic waste to pitch project. (July 2010-September 2010) * Teaching chemistry for high school students, taking part in International Chemistry Olympiad. (June-September 2012) * Job experience in Sepehr Afrooz Shimi Company, R&D department, to develop new materials for electroplate bath, and electrochemically studying electroplating quality and electroplate bath. (April-August 2013) * Job experience in Padideyeh Shimi Gharb Company as (August 2013-September 2014): Setting up Q.C department for sulfonation part R&D sulfonation Fully familiar with solfunation process (Ballestra line) Fully familiar with powder production process Studding and formulation of disinfectant solutions Standardization of dioxane measurement by the use of GC * Extraction of gold from gold electroplating bath in Onyx Company. (August-October 2013)