- Building ETL processes in Big Data (Airflow, PySpark, Hive, Presto)- Developed internal features and tools on Python- Developed a meta-storage solution based on Kotlin (Spring) + Cassandra.- Participated in migrating the DWH from Hive + Presto to Iceberg (Nessie catalog) + Trino.

- Planning and asigning task- Builded development process- Interviewing, onboarding, training and support✔ Boosted communication within and out of the department, settled an argument between the Development, Game Design and the Art Departments✔ Ensured that work process is smooth, consistent and transparent, encouraged employees to take initiative✔ Assisted to improve the employees skills, particularly through peer coaching and record management.

- Designed gameplay mechanics (weapons, perks, tutorials, etc.)- Updated server-client synchronization for authoritative game server archetecture- Refactored general game server architecture, shift from AOP+OOP to DOD✔ Perks creation speed decreased from 7-10 days to a few hours✔ Made possible create a new weapon using exised mechanics just by editing the configuration files✔ Reduced amount of regression errors by made more isolated and transparent architecture✔ Client experience on 500ms ping in one direction is smooth, with noticeable heavy lags appearing at 1000ms✔ Fluent script for tutorial, assembled from isolated, customizable step modules allows to quickly change the interactive tutorial

- Designed client and server-side VR/AR simulator applications and 3D digital doubles solutions- Designed RAD tools in Unity- Developed an app shop and internal project storage service✔ A node-based script editor, event manager and various pre-built pool systems reduced the range of requirements for a simulator developer that helped to extended team ✔ Raplaced Go, C++, and Python servers with ASP.NET Core, so removed need in specialists working with different stacks

- Developed and maintained WCF and ASP.NET WEB API services- Covered own and legacy code by Unit tests- Carried out code analysis and refactoring, backlog filling- Took part in task analysis, design and project planning, report preparation.

- Developed game and network mechanics, integrated various SDKs into a existed project- Designed and supervised the new project WWR: World Of Warfare Robots- Developed of auxiliary tools (Editor Scripts)- Optimezed scripts, game prefabs and scenes✔ Launched new project in 6 months✔ Created utility used to "occupy" lfs objects, such as atlases, textures, 3D objects, helped avoid wasting time on resolving conflicts within merge changes from two or more modellers

- Development and testing software in C#, Python, JavaScript- Wrote and optimized SQL procedures and queries- Created an information booth for transmission of energy consumption and checking billing debt✔ Accelerated data uploading to other systems by 6 times through data normalization, query optimization and multi-threading✔ Created an information booth and automated its maintenance that reduced the load on the client support department