Leonid Pozdnyakov

Stack: Hadoop+Kafka+Airflow+Clickhouse+Redash+Python+GIT+Docker+Kubernetes Analyzing user logs from main page (800+ billions records per day) and optimizing database. Building solution with Airflow+Clickhouse+Redash and Python, touched Hadoop+Kafka+Kubernetes. Designing and implementing ETL-processes (from clients api-s, from/to different databases, etc), preparing datasets for ML and analysts, optimizing queries, creating pipelines for time-series forecasting on Prophet together with data quality checks.

Projects: 1. Design and implementation of DWH in the enterprise. SSIS+MS SQL+SSAS+Power BI. 2. Forecasting working results on historical data (implementation of a plan, number of cubic meters processed etc.). 3. Workforce planning (based on statistical data about working time and work plan). 4. Staff financial motivation system development (split up the segments of the work by groups of complexity, timekeeping by database records, etc.). 5. Creating OLAP-cubes in MS Analysis Services.

7 developers in department, 2 team leads for regulated and management accounting 2 developers in subordinate. Working through git. 60 retail stores. Accounting 1c software: for management, bookkeeping, financial, personnel. Whole software altered for business by different people. Development plan drafting, technical and business task drafting, code-review, automation and optimization of current and new processes in company.