Senior Node.js Developer (Salesforce)

Location: Remote from Poland

Company

Flosum is a profitable B2B SaaS company building Salesforce-native DevSecOps, data protection, and security products for enterprise customers in regulated industries.

What you will do

• Build high-performance backend services, RESTful APIs, and scalable Node.js microservices.
• Develop Salesforce ecosystem integrations and work with enterprise SaaS architecture.
• Design real-time data processing and event-driven systems for sensitive data at scale.
• Contribute to Vue.js and TypeScript front-end experiences for enterprise users.
• Build CI/CD tooling, automation frameworks, and developer productivity infrastructure.
• Collaborate directly with engineering leadership, product managers, and the CEO while owning systems end to end.

Requirements

• 5+ years of professional Node.js development in production environments.
• Expert knowledge of asynchronous programming, event loops, streams, backpressure, and the Node.js runtime.
• Strong production experience with TypeScript, RESTful APIs, OAuth 2.0, JWT, and enterprise API security.
• Experience with SQL and NoSQL databases, query optimization, data modeling, automated testing, Git workflows, and CI/CD.
• Understanding of Docker, cloud services such as AWS, GCP, or Azure, and infrastructure as code.
• Ability to work remotely from Poland in a long-term, full-time engagement.

Nice to have

• Salesforce development experience with Apex, Lightning Web Components, Visualforce, or Salesforce API integrations.
• Experience building Salesforce ISV or AppExchange products.
• Vue.js 3 Composition API and state management experience.
• Experience with enterprise B2B SaaS, SOC 2, HIPAA, FedRAMP, GDPR, or DevSecOps practices.

Culture & Benefits

• Remote-first flexibility with a results-oriented work environment.
• Long-term full-time engagement with opportunities to grow and own systems end to end.
• Direct collaboration with founding team members and engineering leadership.
• Work on enterprise-grade products involving security, compliance, scale, and reliability.
• Profitable, stable business with aggressive growth plans and a culture focused on ownership, speed, and craftsmanship.