Backend Developer

About the CompanyAt 5411Hub, we’re on the lookout for a skilled Backend Developer specialized in Node.js to join our growing international team. You’ll be part of a fast-paced environment, working on high-impact, scalable solutions where continuous improvement, clean code, and collaboration are at the core of everything we do. Your Responsibilities Design, develop, and maintain backend applications and services using Node.js, with occasional tasks in Java and Python. Collaborate with cross-functional teams to integrate backend solutions within the broader tech stack. Write and maintain unit and integration tests to ensure code reliability and quality. Automate build and deployment processes using tools such as GitHub Actions, Jenkins, or TeamCity. Implement and maintain SocketCluster for real-time communication features. Manage and optimize SQL/NoSQL databases to ensure performance and consistency. Work on existing codebases, following established patterns and contributing to debugging and improvements. Ensure high availability, scalability, and performance across services. Diagnose and troubleshoot issues across different environments. Follow best practices in development, version control (Git), and deployment. Stay up to date with the latest trends in Node.js and software architecture. What We’re Looking For Proven, hands-on experience in Node.js, with additional experience in Java or Python. Strong knowledge of unit testing and intermediate experience in integration testing. Familiarity with CI/CD tools like GitHub Actions, Jenkins, or TeamCity. Experience with SocketCluster for real-time applications. Solid understanding of SQL and/or NoSQL database management. Proficiency in Git and collaborative workflows (branching, PRs, merges). Ability to maintain and adapt pre-existing codebases. Strong problem-solving skills and attention to detail. Advanced English (spoken and written) is required to work with global teams. Passion for clean code, scalability, and performance in production systems.