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: