Bank B2B Services – Development of Services for Partners and Support ManagersAchievements:• Automated audience selection based on parameters and point adjustments depending on partner requirements, which freed up analysts' time for other tasks.• The Clickhouse-based process of gathering the target audience for partners has been optimized, which has reduced the execution time from 15-20 minutes to 15-20 seconds.• Conducted a refactoring of the audience gathering process, breaking the overall process into separate tasks that depend on each other, which allowed horizontal scaling of the OLAP load.• Integrated JobRunr into services, replacing Spring Scheduled, which simplified the management of scheduled tasks and halved the time for completing integration tests.• Initiated the architectural refactoring of the department's services, reducing the interdependence of services and improving the usability.Responsibilities:• Collected business requirements and prepared technical specifications for epics.• Wrote technical documentation (RFC/ADR) and participated in epic reviews.• Conducted code reviews and implemented business functionality, including covering business processes with metrics and alerts.• Responded to alerts, handled post-incident analysis, and ensured the system’s stability.• Developed unit and integration tests to ensure code quality and reliability.Competency Development• Conducted technical interviews for potential candidates, evaluating their skills and fit for the team.• Mentored an intern, guiding them through the internship program. The intern successfully passed their assessment and was offered a full-time position.Technology Stack: • Java 21 • Spring Framework • PostgreSQL • Clickhouse • Kafka • Lombok • JUnit, Mockito, Testcontainers

Yandex Market – Development of a Logistics PlatformAchievements:• Implemented a daily recalculation process for unit economics statistics, enabling data-driven decisions for warehouse supplies based on updated daily data.• Automated processes for handling new products without available statistics and optimized supply decisions for products with poor unit economics but offering supplier discounts when bundled with other items, resulting in improved overall profitability.Responsibilities:• Developed the backend part of the application responsible for automating supply chain planning for warehouses.• Wrote SQL scripts to manage and manipulate data.• Implemented business logic based on customer requirements.• Conducted technical analysis of projects, including meetings with product managers, architecture design, and task planning.• Ensured the stability of the application by supporting monitoring tools, coordinating incident management, and integrating AI for process improvements.Technology Stack:• Java 11• Spring Framework (Boot, Security)• PostgreSQL• JUnit, Mockito• Drools• Camunda