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Oleg Lazaryev has worked in the tech industry since 2012. Oleg started their career at InterLink LLC, Ukraine as a Full Stack Software Engineer, where they also mentored interns and worked on an event ticketing platform. In 2013, they started working at HR Grades as a Full-stack Developer. From 2016 to 2018, they worked as a Teacher at CURSOR Education and as a DevOps Engineer at DreamFactory Software. In 2019, they worked as a Senior Ruby on Rails & Vue.js Engineer at both Fanomena GmbH and StartupSoft. In 2020, they worked as a Senior Ruby on Rails & Vue.js Engineer at emlen.io and as a Ruby on Rails Engineer at NinjaHoldings. In 2021, they worked as an External Consultant at Inoxoft and in 2022 they worked as an Education Mentor at Lviv IT Cluster, where they worked with a team of first-year students on a project for the healthcare industry.

Oleg Lazaryev has a Master's degree in Information Defense from Lviv Polytechnic National University, which they obtained in 2012 after completing a Bachelor's degree in the same field from the same university in 2011. Additionally, they have obtained two certifications, "Operating Systems from scratch - Part 1" from Udemy in 2021 and "Powering Up With React" from Code School.