Nazar Gorelik

1. Leading a team of three students implemented monitoring tool for traders, increasing the average PnL by 2.3% and reducing traders' decision time by 23.5%. 2. Implemented 3 libraries that are used across the entire company and thereby already saved ~4 weeks of development time. 3. Configured deployment process using CI/CD, thereby saving 3 hours of developer time per week. Technologies: .NET, EF Core, Dapper, SignalR, Azure SQL, CI/CD, Docker, xUnit, Vue.js, REST APIs, Claude Code, Cursor AI, Codex CLI.

1. Replaced old technologies in marine compressors’ software with Spring Framework and SQL, thereby increasing the crash-free rate from 71.9% to 98.7%. 2. Increased the test coverage from 23% to 92% using unit and integration tests. 3. Introduced modern reactive frontend halving the number of buttons on main monitoring display. Technologies: Spring Boot/Security/Web, JPA, Hibernate, MySQL, CI/CD, Docker, JUnit, Flyway, Mockito, React, JavaScript, TypeScript, REST APIs.

1. Implemented an analytical tool for Yandex Delivery in a team of 40 engineers. 2. Worked mostly on introducing and maintaining new metrics in drivers’ personal accounts, which increased overall driver satisfaction from 3.1 to 4.7 (on a scale of 1 to 5). 3. Increased the number of unit/integration tests from 1.056 to 1,643. Technologies: .NET, Spring Boot/Web, EF Core, Dapper, Spring Data JPA, Hibernate, JUnit, xUnit, Mockito, Flyway, PostgreSQL, REST APIs.

1. Implemented a backend services for Yandex Market as part of a team of 23 engineers. 2. Reduced the website loading time by 17% by implementing caching and multithreading. 3. Increased test coverage by 45%. Technologies: .NET, Spring Boot/Web, EF Core, Dapper, Spring Data JPA, Hibernate, JUnit, xUnit, Mockito, Flyway, PostgreSQL, REST APIs.