Senior Remote-First Node/React Full-Stack Engineer

Madfish; United Kingdom; Remote; GBP 50,000 - 70,000; Full time

Job summary

A forward-thinking tech company in the United Kingdom seeks a skilled JavaScript Engineer to lead the development of user interfaces and services for marketing analytics and identity resolution. The ideal candidate will have extensive experience in JavaScript and React.js, along with a solid understanding of Node.js and serverless environments. This role offers a dynamic work environment, remote-first culture, and 4 weeks paid vacation.

Benefits

4 weeks of paid vacation

Unlimited sick leave

US Bank Holidays off

Dynamic multicultural team

Flat structure and ownership

Flexible working hours

Qualifications

• 4+ years of experience with JavaScript and modern frameworks.
• 3+ years with React.js, including hooks and context API.
• 3+ years with Node.js, Express.js, and related tooling.
• Deep understanding of REST APIs and third-party integrations.
• Experience with CI/CD workflows using GitHub/GitLab pipelines.
• English: upper-intermediate level or higher.

Responsibilities

• Build and maintain high-performance, scalable web applications.
• Work closely with Data Scientists on analytics and data activation.
• Develop UIs with advanced data visualization.
• Collaborate on multi-tenant architecture and automated onboarding.
• Champion UI/UX best practices and maintain clean code.

Skills

JavaScript

React.js

Node.js

Serverless environment

REST APIs

CI/CD workflows

Data visualization libraries

Tools

Google Cloud Platform

MongoDB

Neo4j

Firebase

Stripe

Sentry

Job description

A forward-thinking tech company in the United Kingdom seeks a skilled JavaScript Engineer to lead the development of user interfaces and services for marketing analytics and identity resolution. The ideal candidate will have extensive experience in JavaScript and React.js, along with a solid understanding of Node.js and serverless environments. This role offers a dynamic work environment, remote-first culture, and 4 weeks paid vacation.