Sergey Kozlov is a Head Of Research and Analytics at AdTech Holding. He possess expertise in sql, data warehousing, agile methodologies, scrum, etl and 35 more skills. He is proficient in French, Spanish and English. Colleagues describe him as "I had the pleasure of working with Sergei Kozlov at PropellerAds, where he reported to me as the Head of Research and Analytics at AdTech Holding. In his role, Sergei demonstrated exceptional expertise in data science, particularly in AI and ML. His deep understanding of these fields was evident in his ability to lead complex projects, yielding outstanding results that often exceeded our expectations. Sergei's technical brilliance is matched by his remarkable interpersonal skills. He is an amazing team player, known for his ability to communicate complex ideas clearly and collaborate effectively across various departments. His positive attitude and approachability made him a favorite among his colleagues. Sergei's contribution to our team was invaluable, not just in terms of his technical skills but also in his role as a motivator and leader. His unique blend of professional expertise and personal qualities makes him an asset to any team." and "I've worked with Sergey at Enkata for quite a long time and witnessed Sergey succeeded in multiple positions. He is a brilliant technical partner with deep domain and business understanding for product management, marketing and sales. His vision is precise and thought-through, he has 360 degree view on the business need and implementation tasks and is able to negotiate the best solution possible throughout the teams involved. Sergey also demonstrated impressive results in data science - the direction he lead for the last year. Not only he performed in-depth analysis but also he educated his colleagues to get a better understanding of trending techniques and ways to incorporate results of data science into business value for customers. I am definitely recommending Sergey as a great professional, collaborative team player and an A asset of any organization he joins."