• Designing REST APIs and database schemas (PostgreSQL, MySQL), writing queries via Dapper
• Developing integrations with external services: payments, email notifications, report exports
• Implementing server-side logic for admin panels: orders, scheduling, clients, roles
• Writing unit tests, setting up CI/CD
• Optimizing queries and API response times
• Occasionally helping with frontend: Next.js, Nuxt.js, Tailwind, Bootstrap

• Designed REST APIs and database schemas (PostgreSQL, MySQL), wrote complex queries via Dapper
• Developed SSR interfaces on Next.js and Nuxt.js, adaptive UI with Tailwind CSS and Bootstrap
• Built admin panels: order management, scheduling, client management, user roles
• Integrated with external services: online payments, email notifications, Excel report exports
• Wrote backend unit tests, set up CI/CD for automated builds and deployments
• Optimized queries and page load times

• SaaS platform for the beauty industry: online booking, employee scheduling, service tracking, client dashboard
• Cinema booking service: session selection, interactive seating layout, payment, ticket generation
• Airport management system: flight board, statuses, user roles, internal reports

• Led one project almost independently: from database structure to server deployment
• Set up CI/CD, which significantly sped up release cycles
• Learned to interpret client requirements and propose solutions they would approve

• Developed and maintained the metadata storage service for specialist-client call records and the authentication service (.NET 8, ASP.NET Core)
• Implemented API contracts for interaction with the call analysis service
• Designed metadata storage schemas, wrote queries (EF Core, Dapper, PostgreSQL)
• Developed the CRM Bitrix integration service: synchronizing call and client data
• Handled incoming requests from the metadata service and forwarded data to Bitrix via REST API
• Wrote integration and unit tests (xUnit)
• Maintained API documentation (Swagger)

• Participated in developing the client call analysis solution. Through optimization of inter-service communication (caching, reducing request volume), data processing time was reduced by 30%
• Achieved 90% test coverage for the metadata and authentication services (unit + integration tests)
• Ensured stable data synchronization with CRM Bitrix: configured retry logic on failures, resolved data desynchronization issues
• Worked closely with Python developers on API contracts — accelerated integration of the call analysis service
• Independently developed and deployed a Telegram bot for the quality department: access to call analytics without a web interface

Telegram bot for the quality department — access to client call analytics without a web interface.

• Provides call summaries on command: daily count, average duration, problematic topics
• Data aggregation from PostgreSQL via Dapper (complex queries with grouping and filtering)
• Ability to request statistics by specific employee or time period
• Daily automated summary push to the department’s work chat via BackgroundService
• Used by analysts and the department head on a daily basis