Senior Node.js Developer (Salesforce)

Location: Ukraine; remote

Company

Flosum is a profitable B2B SaaS company building Salesforce-native DevSecOps, data protection, and security products for Fortune 500 enterprises in regulated industries.

What you will do

• Build and maintain high-performance backend services and APIs for enterprise-grade SaaS applications.
• Develop scalable Node.js microservices and integrations within the Salesforce ecosystem.
• Design real-time data processing and event-driven architectures for sensitive enterprise data.
• 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.
• Deep production experience with TypeScript, RESTful API design, 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 pipelines.
• Knowledge of Docker, cloud services such as AWS, GCP, or Azure, and infrastructure-as-code principles.
• Must be based in Ukraine for this remote role.

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 experience, especially Vue 3 Composition API and state management.
• Experience with enterprise B2B SaaS, SOC 2, HIPAA, FedRAMP, GDPR, and DevOps or DevSecOps practices.

Culture & Benefits

• Long-term, full-time engagement rather than short-term contracting.
• Remote-first flexibility in a results-oriented environment.
• Direct collaboration with the founding team and engineering leadership.
• Work on enterprise products where security, compliance, scale, and reliability are central technical challenges.
• Culture focused on ownership, speed, direct communication, and craftsmanship.
• Competitive compensation based on experience and impact.