Alexander Grebenschikov is a seasoned professional in the field of software and security engineering, currently serving as the Head of Security Engineering at Sumsub since June 2022. Previously, Alexander worked at Bumble from March 2018 to June 2022, holding positions as both an Application Security Engineer and a Server Engineer. Prior to that, experience includes a role as a PHP Developer at SMT ISS from July 2017 to March 2018, and an iOS Developer at both Fibonacci from May 2016 to April 2017 and as a freelancer from July 2015 to April 2016. Alexander began a career in software engineering at Prosperity, working as a Software Engineer from October 2013 to June 2015. Educational credentials include a Master's degree in Chemical Technology/Technician from MIREA (Russian Technological University) and a Bachelor's degree in Applied Informatics from Moscow Technological University.