IT & Software

Back End Developer

Consortia

London · Greater London · United Kingdom

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Overview

In this backend-focused role, you build and scale high-performance Node.js services for a real-time visualization platform. You’ll work within a tight, collaborative engineering team to deliver robust APIs and scalable infrastructure. The role emphasizes performance tuning, clean architecture, and thorough testing to ensure reliability in a fast-moving startup-like environment. You will collaborate with DevOps, frontend, and data teams to drive impact across the platform. This is a hands-on opportunity to shape scalable backend systems in a dynamic, non-corporate culture.

Responsibilities
  • Design, build, and maintain robust backend services with Node.js
  • Write efficient SQL queries and optimize PostgreSQL performance
  • Develop clean, scalable RESTful APIs
  • Collaborate with DevOps, frontend, and data teams for seamless integration
  • Test, profile, and maintain well-documented code
  • Ensure reliability and maintainability as the platform evolves
Key requirements
  • Solid commercial experience in Node.js backend development
  • Strong PostgreSQL experience (and optionally MongoDB)
  • Experience building and scaling REST APIs
  • Familiarity with Git workflows and clean coding practices
  • Comfortable in a start-up-like, collaborative environment
  • collaboration
  • adaptability
  • proactive problem-solving
  • Node.js
  • PostgreSQL
  • MongoDB (optional)

Reference: WJ-747_31241361 · Posted 06 Nov 2026, 09:42 PM

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