Developing services for providing historical data from the blockchain, tracking wallets activity and NFT transfers.Helped to develop parser of NFT transactions.Was integraing ClickHouse to boost data queries.Made a lot of tasks to optimize performance for Postgres, ClickHouse, and MongoDB.Helped to launch and set up AWS EKS cluster, setuped monitoring, and log aggregations.Fixed different issues in Go and Python apps.

I helped to develop the IPEHR project (https://github.com/bsn-si/IPEHR-gateway) The main feature that I did was implementing AQL. This language is a kind of SQL for query data from medical documents.Also, made a lot of code improvements and performance optimizations.

I am working as a backend developer in the team which is developing two products. First, Aviasales Assisted - a product that allows clients to buy a ticket on a plane directly in-app, without redirecting to the air company website. Second, Aviasales More - it's a subscription program that helps clients in different situations and also includes a cashback system.I am developing new features for what products and supporting legacy code. We are working with PostgreSQL and MongoDB, deploying our apps in Kubernetes by Jenkins CI.

I came to the company as a client developer on Unreal Engine 4. We were developing epic PvP fighting Blood of Heroes. After half year I began working on the position of Team Lead of backend command. We were developing microservices from scratch for that game. Microservices were written on Go. gRPC was used as the main protocol for communication between services and clients and between services. PostgreSQL was used as the main data storage. Redis was used as a light cash server and the main data store for the matchmaking system. For asynchronous communication between services was used Kafka broker. Different analytical data was stored in the ClickHouse database.In developing microservices we used the TDD technique and clean architecture.

Was working as client Unity developer on mobile game Hustle Castle. I was developing new gameplay features.

Was working on a huge PC game Blitzkrieg 3. It was a project with a large code base. Was preparing this project for release.

Supporting old code base and creating new features for a mobile 2D game Movie Studio Story on Unity. Creating CI pipline on Jenkins.

Was developing nuclear disposal accounting system. Used for this project ASP.Net, Entity Framework 5, Bootstrap, JQuery, MS SQL Server, TFS

As a member of a small team with other students started researching Unity 3D Engine and made some prototypes of games for the company. Developed compiler for internal DSL ‘Crosstruct’, which is used for serializing data packages between the game server and clients. (kind of Protobuf).Create a push notification service on c#. Made logining by Facebook and VK.com