Mariia Filyushin

About Mariia Filyushin

Energetic full stack engineer with experience in Web development, thriving in Agile teams…

Experience

1. Software Engineer

   Grid Dynamics

   Jul 2021 — Present

   Analyzed and validated results of ETL pipelines using Spark & Jupyter Notebooks\\\\nInspecting parquet data stored in HDFS and AWS S3 using Spark SQL\\\\n- Building different Spark jobs to generate static datasets according to schema spec provided\\\\n- Build a Data Generator based on Spark & Scala as reusable module to extend for different use cases & datasets\\\\n- Working on automating validation of datasets using Apache Spark, Hive Metastore\\\\nImproving integration testing using Docker containers - Hive, HDFS, Minio\\\\n- Developed various UI parts like modal, drawer windows, search, filtering, shopping bag, catalog, sing-in, register form, looks templates to share with clients\\\\n- Created new versions of HTML views using Mustache templating framework and NodeJS, Express for email and SMS\\\\n- Optimized application by implementing hooks and selector functions for encapsulating lookups of data from Redux store\\\\n- Utilize Redux Thunk middleware to trigger API endpoints in asynchronous actions\\\\n- Communicate with API services using AWS AppSync for implementation of real-time updates (notifications, new messages)\\\\n- Tested sites in various browsers and devices to ensure cross-browser compatibility and mobile responsiveness\\\\n- Refactored code for better readability and error handling applying Types Checking with TS + JSDoc\\\\n- Collaborated with other developers and participate in detailed code reviews\\\\nImproved Unit tests coverage using JEST, Enzyme, React Testing Library\\\\n \\\\n\\\\n \\\\n \\\\n\\\\n \\\\n