Back End Node Js Developer

We're looking for a detail-oriented and analytical Back End Node.js Developer to join our growing engineering team in Barcelona, Spain. In this role, you will design, develop, and maintain robust server-side applications using Node.js, working collaboratively with cross-functional teams to deliver scalable and efficient solutions. The ideal candidate will demonstrate strong problem-solving abilities and a commitment to writing clean, well-organized code that meets our high standards for quality and performance.

• Develop and maintain back-end services and APIs using Node.js and JavaScript, ensuring optimal performance and reliability
• Design and implement efficient database solutions, including schema design and query optimization
• Write clean, maintainable code following established coding standards and best practices
• Collaborate with front-end developers, product managers, and other stakeholders to understand requirements and deliver integrated solutions
• Conduct code reviews and provide constructive feedback to team members to maintain code quality
• Troubleshoot, debug, and resolve technical issues in a systematic and organized manner
• Implement and maintain automated testing frameworks to ensure application stability and reduce bugs
• Participate in system architecture discussions and contribute to technical decision-making
• Monitor application performance and implement optimizations to enhance efficiency
• Document code, APIs, and technical processes for team knowledge sharing and future reference

**Required Skills and Experience

**

• Proficiency in Node.js and JavaScript with demonstrated experience building production-level applications
• Strong understanding of RESTful API design and implementation
• Experience with relational and/or NoSQL databases (e.g., PostgreSQL, MongoDB, MySQL)
• Solid knowledge of version control systems, particularly Git
• Experience with asynchronous programming and event-driven architecture
• Familiarity with server-side frameworks and libraries (e.g., Express.js, Fastify)
• Understanding of software development best practices and design patterns
• Proven ability to write organized, efficient, and well-documented code

**Preferred Skills and Experience

**

• Experience with TypeScript for type-safe development
• Knowledge of microservices architecture and distributed systems
• Familiarity with containerization tools such as Docker
• Experience with testing frameworks and test-driven development (TDD)
• Understanding of CI/CD pipelines and deployment processes
• Experience with cloud platforms (e.g., AWS, Google Cloud, Azure)
• Knowledge of message queues and event streaming (e.g., RabbitMQ, Kafka)
• Experience with performance monitoring and logging tools

At Fusion, we unite entrepreneurial minds from around the globe to develop and implement game-changing solutions that build lasting relationships with our clients.

We value employees who challenge the status quo through innovation, adapt to diverse client needs in ever-changing environments, and commit to continuous learning—for themselves and their colleagues.

Why Fusion?

We provide a competitive salary and benefits package, along with an outstanding work environment that fosters long-term career development opportunities.

Our Benefits

• Workflex: Enjoy 25 working days off annually, giving you the flexibility to work from your preferred global location.
• Flexible Time Off: Take time off as needed to recharge and maintain a healthy work-life balance. Let’s shape the future together—how far will you take yourself with Fusion Consulting?
• Annual Training Budget: You will receive 1,500 CHF to support your professional development.
• Unity Scheme: Benefit from loyalty rewards starting after 3 years of service.

At Fusion Consulting, your growth has no limits. How far will you go?