I'm an experienced backend developer using Nodejs to build modern, fast, and secure web applications. I can use popular frameworks like Express, Koa, Nest and other technologies like MongoDB, GraphQL, Firebase and AWS. I can design and implement RESTful or GraphQL APIs to interact with frontend applications and external services. I am also skilled in testing, debugging, authentication, authorization and performance optimization. I am a fast learner, pay attention to detail and have the ability to work independently or in a team. I am always looking for new challenges and effective problem solving.