Leonid Pozdnyakov
About Leonid Pozdnyakov
Leonid Pozdnyakov is a Full Stack Data Analyst at Mail.ru Group, where he analyzes around 800 billion user logs daily to enhance database performance. He has a background in 1C development and holds an engineering degree from Novosibirsk State Technical University.
Work at Mail.ru Group
Leonid Pozdnyakov has been employed at Mail.ru Group since 2021, serving as a Full Stack Data Analyst. In this role, he analyzes a substantial volume of user logs, processing approximately 800 billion records daily. His primary focus is on optimizing database performance to enhance the efficiency of data management and analysis.
Previous Experience at Compel
Before joining Mail.ru Group, Leonid Pozdnyakov worked at Compel as a 1C developer from 2015 to 2018. During his tenure, he contributed to various projects that involved the implementation of materialized views, which helped to significantly reduce personnel waiting times and server load for main metrics.
Education and Expertise
Leonid Pozdnyakov studied at Новосибирский Государственный Технический Университет (НГТУ) from 2003 to 2012, where he focused on Вычислительные машины, комплексы, системы и сети. He achieved the qualification of Инженер, which provided him with a solid foundation in computational systems and networks.
Data Analysis and Optimization Projects
In his current role, Leonid Pozdnyakov has developed a forecasting system for time series that tracks metrics such as active users, ad shows, clicks, and revenue. He has also transitioned ETL pipelines from cron jobs to Airflow, which has improved workflow management. Additionally, he optimized database performance by enhancing query execution speed by 15% through architectural changes and adjustments to partition sizes.