zelim

Yandex Lavka's B2B direction specializes in providing consulting services for creating delivery services in other countries. Lead the team of data engineers. Participated in launching new partners. Changed the architecture, allowing for more flexibility in creating final dashboards. Developed a system for creating semantic layers of data, enabling BI specialists to quickly and easily produce new calculations for dashboard creation. Creating dashboards in Tableau. Participated in planning resources for new Clickhouse databases for new partners. Developed a DQ (Data Quality) system, improving data quality for partners. Configured alerting for faster incident response. Templatized development by 30%. Increased ETL process efficiency in resource utilization by 20%.

Axenix (ex. Accenture) company provides consulting services in the markets of Russia, Saudi Arabia, and United Arab Emirates. Participated in architecture design, decided to use Data Vault 2.0. Configured interaction between dbt + Airflow + k8s for easy scalability of data models. Optimized Snowflake operation and its interaction with dbt. loading data to snowflake. Created and configured a monitoring and alerting system, enabling easier resource planning and quicker incident response. Participated in interviews, worked on developing data engineers at middle, junior, and intern levels. Optimized loading in ElasticSearch, allowing stakeholders to easily obtain final data.

Company Beeline is one of the leaders in the telecommunications sector in Russia. Worked on a project for creating reporting and on a project for sales survival forecasting. Participated in creating ETL/ELT processes using Spark on Scala and PySpark. Developed a monitoring system that allowed for optimizing cluster resource usage. Implemented a system for local testing of Spark applications and integrated these checks into the CI/CD process, preventing errors in production environment. Created a monitoring system for sending alerts to a specific on-call engineer.

The Digital Economy League provides consulting services to major Russian companies. Developed ELT processes on Spark on Scala based on Hadoop. Orchestrated dashboard builds in Apache Airflow. Created a custom Airflow operator allowing alerts to be sent to corporate email.