Senior Fullstack Developer (Node.js/Vue)

Location: Remote from Portugal

Company

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

What you will do

• Build high-performance backend services and REST APIs for enterprise SaaS applications.
• Develop scalable 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.
• Design real-time data processing and event-driven architectures for sensitive enterprise data.
• Collaborate directly with engineering leadership, product managers, and the CEO while owning systems end to end.

Requirements

• 5+ years of professional Node.js experience in production environments.
• Expertise in 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.
• Knowledge of Docker, cloud services such as AWS, GCP, or Azure, and infrastructure as code.
• Must be based in Portugal for the remote role.

Nice to have

• Salesforce development experience with Apex, Lightning Web Components, Visualforce, or Salesforce API integrations.
• Experience contributing to Salesforce ISV or AppExchange products.
• Vue 3 Composition API and state management experience.
• Experience with enterprise B2B SaaS, strict compliance requirements, or DevOps/DevSecOps practices in the Salesforce ecosystem.

Culture & Benefits

• Remote-first flexibility with a results-oriented work environment.
• Long-term, full-time engagement with end-to-end ownership.
• Direct collaboration with founding and engineering leadership.
• Work on enterprise products used by Fortune 500 organizations.
• Technical challenges involving security, compliance, scale, and reliability.
• Competitive compensation based on experience and impact.