3+ years of experience building and maintaining backend applications in Node.js production environments. Experience developing modern web interfaces using React + TypeScript and NextJS (both SPA and SSR/SSG modes) for production environments. Hands-on experience with MongoDB, including data modeling and performance optimization. Solid knowledge of RESTful API design, development, and integration best practices. Experience working with event-driven architectures (EDA) and message-based communication. Familiarity with Domain-Driven Design (DDD) and clean architecture principles. Working knowledge of CI/CD pipelines and version control best practices using Git. Strong emphasis on testing (unit, integration) and commitment to code quality, scalability, and maintainability. Familiarity with observability practices — including logging, monitoring, and tracing.