4-7 years of experience in backend development, with a focus on Node.js. Proven expertise in JavaScript ES6, Node.js, and TypeScript. Solid understanding of design patterns and functional programming principles. Hands-on experience with web frameworks such as Express or NestJS. Strong proficiency in SQL databases (Postgres or MySQL), NoSQL databases (MongoDB), and in-memory databases (Redis). Experience with authentication and authorization protocols like OAuth, SAML, and JWT. Cloud services expertise in GCP, AWS, or Azure. Basic DevOps skills, with experience using Docker for containerization.