Senior Node.js Engineer — Enterprise SaaS, Remote-First

Flosum

United Kingdom

Remote

GBP 90,000 - 130,000

Full time

6 days ago

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Benefits offered by this job

Remote-first

Competitive pay

Direct leadership access

Enterprise-grade products

Growth plans

Job summary

Flosum is seeking senior Node.js developers to own significant parts of our architecture. You will ship production code used by Fortune 500 enterprises, collaborating with leadership, PMs, and the CEO.

You will build high-performance backend services, scalable microservices in the Salesforce ecosystem, and modern Vue.js front-end experiences. This is a long-term, remote-first role with enterprise-grade challenges.

Qualifications

Minimum 5+ years of professional Node.js development in production environments.
Deep understanding of asynchronous programming, event loops, streams, and Node.js runtime concepts.
Strong TypeScript experience in production codebases.
Experience with RESTful API design, OAuth 2.0/JWT, and API security best practices.
Proficient in SQL and NoSQL, data modeling, and query optimization.
Git workflows, code reviews, automated testing, and CI/CD pipelines.
Solid understanding of containers (Docker) and cloud services (AWS/GCP/Azure).

Responsibilities

Develop high-performance backend services and APIs powering enterprise apps.
Build scalable Node.js microservices and Salesforce-related integrations.
Create front-end experiences with Vue.js and TypeScript for enterprise users.
Contribute to CI/CD tooling, automation frameworks, and developer productivity infrastructure.
Handle real-time data processing and event-driven architectures with sensitive data.