Senior Backend Developer (Node.js / Nest.js)

Headquarters: Sweden URL: http://career.proxify.io The Role: We are looking for a Senior Backend (Node.js / Nest.js) Developer to join our fast-growing network. You’ll be responsible for building modern and scalable web applications, working closely with backend developers and designers to create intuitive user experiences. This is a long-term, full-time remote role with opportunities to work on innovative projects that make a difference. What we’re looking for: 5+ years with Node.js and 3+ past years with Nest.js Strong expertise in Node.js and Nest.js frameworks. Proven experience building REST and/or GraphQL APIs. Strong knowledge of JavaScript (ES6+) and TypeScript. Solid experience with relational and/or NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB). Familiarity with authentication/authorization mechanisms (JWT, OAuth2). Experience with unit/integration testing (e.g., Jest, Mocha). Proficiency with Git and version control workflows. Located in CET timezone (+/- 3 hours), we are unable to consider applications from candidates in other time zones. Nice to Have: Experience with cloud platforms (AWS, Azure, GCP). Familiarity with CI/CD pipelines and DevOps practices. Understanding of event-driven architecture and message brokers (e.g., RabbitMQ, Kafka). Experience with Docker and containerized applications. Knowledge of microservices and serverless architectures. Responsibilities: Design and develop robust, scalable, and secure backend applications using Node.js and Nes