Senior Node.js Developer (Belgium)

Description: Flosum is a profitable B2B SaaS company focused on Salesforce-native DevSecOps, Data Protection, and Security solutions. The role involves building high-performance backend services and APIs, scalable Node.js microservices, and modern front-end experiences. Requirements: 5+ years of professional Node.js development in production environments. Expert understanding of asynchronous programming, event loops, and the Node.js runtime. Deep experience with TypeScript in production codebases. Strong command of RESTful API design and API security best practices. Proven experience with SQL and NoSQL databases, query optimization, and data modeling. Proficiency with Git workflows, automated testing, and CI/CD pipelines. Solid understanding of containerization, cloud services, and infrastructure-as-code principles. Benefits: Competitive compensation based on experience and impact. Direct collaboration with the founding team and engineering leadership. A stable company with aggressive growth plans and no funding anxiety. Opportunity to work on enterprise-grade products for large organizations. Meaningful technical challenges in security, compliance, and reliability. A culture that rewards ownership and craftsmanship. Remote-first flexibility with a results-oriented work environment.