Senior Node.js Developer (Serbia)

Stack

Responsibilities

• ▹Build high-performance backend services and APIs for enterprise SaaS applications
• ▹Develop scalable, secure Node.js microservices and integrations within the Salesforce ecosystem
• ▹Create modern front-end experiences with Vue.js and TypeScript
• ▹Build CI/CD tooling, automation frameworks and developer productivity infrastructure
• ▹Implement real-time data processing and event-driven architectures handling sensitive enterprise data

Requirements

• ▹5+ years of professional Node.js development in production environments
• ▹Expert-level understanding of asynchronous programming, the event loop, streams and the Node.js runtime
• ▹Deep experience with TypeScript in production codebases
• ▹Strong command of RESTful API design, authentication patterns (OAuth 2.0, JWT) and API security for enterprise environments
• ▹Proven experience with SQL and NoSQL databases, query optimization and data modeling
• ▹Proficiency with Git workflows, code review, automated testing (unit, integration, end-to-end) and CI/CD pipelines
• ▹Solid understanding of containerization (Docker), cloud services (AWS/GCP/Azure) and infrastructure as code

Nice to have

• ▹Salesforce development experience: Apex, Lightning Web Components, Visualforce or Salesforce API integrations
• ▹Experience building or contributing to Salesforce ISV (AppExchange) products
• ▹Vue.js front-end experience, particularly Vue 3 Composition API and state management
• ▹Experience in B2B SaaS with strict compliance requirements (SOC 2, HIPAA, FedRAMP, GDPR)
• ▹Familiarity with DevOps/DevSecOps toolchains in the Salesforce ecosystem

Soft skills

What we offer

• ▹Competitive compensation based on experience and impact
• ▹Direct collaboration with the founding team and engineering leadership
• ▹A profitable, stable company with no funding pressure
• ▹Work on enterprise-grade products used by some of the largest organizations in the world
• ▹Meaningful technical challenges in security, compliance, scale and reliability
• ▹Remote-first flexibility with a results-oriented work environment

About the company

Flosum is a bootstrapped, profitable B2B SaaS company building a Salesforce-native DevSecOps, data protection and security platform. Its customers include Fortune 500 enterprises in heavily regulated industries such as financial services, healthcare, government and insurance.