• "Аналітик кібербезпеки", свідоцтво про підвищення кваліфікації державного зразка
• 000
• B2 Certificate
• B2 Certificate
• CERTIFICATE 2020 IEEE Third International Conference on Data Stream Mining & Processing (DSMP)
• CERTIFICATE OF ATTENDANCE This certificate is hereby awarded to Oleksandr Lemeshko for successful completion of Security Audit and Risk Management Course The ISACA Kyiv Chapter
• CERTIFICATES of COMPLETION of the courses within the 2021 Cybersecurity Summer Training Program under the USAID Project “Cybersecurity for Critical Infrastructure in Ukraine”
• COURSE CERTIFICATE "Cloud Computing Applications, Part 2: Big Data and Applications in the Cloud"
• Certificate "EU best practices for IoT and Smart Infrastructures" (2021) under Erasmus+ Jean Monnet project: “Integrating the EU cybersecurity framework and policies in Ukraine” (621250-EPP-1-2020-1-UA-EPPJMO-MODULE)
• Certificate "EU frameworks for exchanging cybersecurity information" (2021) under Erasmus+ Jean Monnet project: “Integrating the EU cybersecurity framework and policies in Ukraine”
• Certificate "Emotions: a Philosophical Introduction" by Universitat Autònoma de Barcelona on Coursera
• Certificate "Global Diplomacy – Diplomacy in the Modern World" by University of London & SOAS University of London on Coursera
• Certificate "Magic in the Middle Ages" by Universitat de Barcelona on Coursera
• Certificate "Moral Foundations of Politics" by Yale University on Coursera
• Certificate "Renewable energy engineering"
• Certificate "The Politics of Skepticism" by Erasmus University Rotterdam on Coursera
• Certificate "Write professional emails in English" by Georgia institute of technology
• Certificate "Працюйте розумніше, а не більше: управління часом для особистої та професійної продуктивності" by University of California, Irvine on Coursera
• Certificate American English Center (advanced level)
• Certificate B2
• Certificate B2
• Certificate B2 Wildau
• Certificate Coursera Alberta University (Canada) - Software Product Management Specialization
• Certificate Language Center (Level Intermediate)
• Certificate MIC#0105e (the course "SQL-Server 2012 - Killer Features Deep Dive")