Worked for a leading IT outsourcing company with specialization in Data Warehouse, BI, and Big Data projects for banks and telecom.Project: Anti Money Laundering web tool.- Designed and delivered integrations using Python, SQLAchemy, aiohttp, and Apache Kafka.- Implemented secure and scalable file exchange mechanisms using Apache Kafka and S3-like storages.- Developed universal alert and report generation mechanisms based on data from Oracle DB, allowing the team to promptly accomplish 10+ new functionalities.- Enhanced legacy automatic alert generation mechanism, which uses data from Hadoop and Oracle, increasing reliability by 15%.- Optimized Oracle queries using CTE, indexes, and execution plans, reducing execution times from minutes to seconds.- Configured and maintained web application Linux servers. Hunted down and optimized resource-intensive processes, improving application performance and stability, and enhancing the user experience.- Automated application distributives using Bash scripts and CI/CD instruments (Bitbucket, GitHub, Gitlab). Reduced time to deliver application updates by 10%.- Participated in code reviews, and consulted colleagues on tasks and tools.

A team of scientists and engineers developing commercial high-precision equipment for scientific projects.Project: PCB and BGA fault detection application.- Enhanced fault detection algorithm utilizing Python, NumPy, SciPy и OpenCV, reducing troubleshooting time by 3x.- Enhanced interactive board display module using PyQt and NumPy, bringing the maximum number of test points to 2500.- Optimized VAC curve handling utilizing NumPy and Matplotlib, improving troubleshooting reliability.- Separated application components into isolated modules, allowing them to be reused in other company projects.- Implemented test coverage of the application code using unittest from scratch, improving the safety of further development.- Automated CI/CD with Mercurial hooks, Bash/Batch/Python scripts, and Jenkins.

Mentor on STM32 MCU C++ programming course of Lomonosov MSU Engineering physics center.