Big Data Software Engineer at SoftServePrevious experience - BigData/DWH Engineer in Zoral. Here I worked for large Western Europe-based client (including on-site experience) where I was responsible for ETL design and development using a mix of self-developed and industry-lead(Airflow) tools for scheduling and workflow management along with the Apache Beam (on Dataflow) as data processing engine in order to supply data into DWH which was built in Google Big Query. Technology stack - Google Big Query, Apache Beam (Have experience with both Java and Python SDKs), Cloud Composer, Cloud Storage, Google Stackdriver, some hands-on experience with CI/CD tools including such solutions as Jenkins and Cloud Build.Before Zoral I used to work as a BI developer for the large social gambling operator where I was responsible for ETL processes design, and development, monitoring set-up, maintenance, and reporting. Took a part in an effort which was aimed to migrate from on-premises infrastructure to Google Cloud Platform. Also I have been responsible for internal BI system maintenance, support, improvement as well as for integration with large external advertisement platforms(Facebook, Adcolony etc.) and attribution platforms (AppsFlyer, Kochava). Technology stack - Hadoop + Hive, Python(Django, Airflow) QlikView, PostgreSQL, MySQL, Vertica, Google Cloud Platform(Big Query, Cloud Storage), PySpark(on Amazon EMR).