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Esfandiar Haghpanah is a Configuration Management Engineer at AEC - RavanErtebat since December 2020, with a solid background in RF optimization at Ericsson from April 2015 to the present. Previous roles include Back Office Engineer at NAK from March 2013 to March 2015, where responsibilities involved BSS troubleshooting, and SLM and BTS engineering at Nokia Siemens Networks from March 2011 to March 2013. Additional experience includes a BSC Engineer position at TEN in 2010 and serving as a Support Engineer at Ericsson from August 2007 to March 2009, focusing on technical customer support, issue escalation, and software installation. Esfandiar holds a Bachelor's degree in Electrical and Electronics Engineering from Islamic Azad University, awarded in 2003.