Senior Node.js Engineer - Enterprise SaaS, Remote

Flosum; United Kingdom; Remote; GBP 100,000 - 140,000; Full time

Benefits offered by this job

Remote-first flexibility

Direct collaboration with founders/eng

Job summary

Flosum is seeking senior Node.js developers to own substantial parts of our backend and microservices architecture for a Salesforce-native security platform. You will work directly with engineering leadership and product managers to ship production-grade code for enterprise customers.

You will contribute to high-performance services, secure API design, and scalable data processing while collaborating with cross-functional teams in a remote-first, profitability-backed environment.

Qualifications

• 5+ years of professional Node.js development in production environments.
• Strong knowledge of asynchronous programming, event loops and backpressure.
• Deep TypeScript experience in production codebases.
• Experience with RESTful API design and API security for enterprises.
• Proficiency with SQL and NoSQL databases and data modeling at scale.
• Git workflows, automated testing, and CI/CD pipelines.
• Containerization with Docker and cloud services (AWS/GCP/Azure).

Responsibilities

• Develop high-performance backend services and APIs for enterprise SaaS.
• Build scalable Node.js microservices within the Salesforce ecosystem.
• Collaborate with engineering leadership and product managers on architecture.
• Contribute to frontend experiences using Vue.js/TypeScript when applicable.

Skills

Node.js

Async programming

TypeScript

REST APIs

OAuth 2.0 / JWT

SQL & NoSQL

Git workflows

CI/CD

Docker

Cloud services (AWS/GCP/Azure)

Tools

Docker

AWS

GCP

Azure

Job description

Flosum is seeking senior Node.js developers to own substantial parts of our backend and microservices architecture for a Salesforce-native security platform. You will work directly with engineering leadership and product managers to ship production-grade code for enterprise customers.

You will contribute to high-performance services, secure API design, and scalable data processing while collaborating with cross-functional teams in a remote-first, profitability-backed environment.