IT & Software

Backend Engineer

Harnham

London · Greater London · United Kingdom

Overview

In this role you will design and build robust Python-based backend services for a stealth-mode GPU trading platform. You will collaborate with the founding team to shape core systems and technical direction in a high-impact environment. You’ll work with PostgreSQL to ensure data integrity and performance while integrating ClaudeCode to streamline development. Occasional front-end support via TypeScript and a strong focus on API design, security, and quality will be part of your daily work.

Responsibilities
  • Design and develop backend services in Python using FastAPI, Flask, or Django
  • Work with PostgreSQL for data management and optimized queries
  • Integrate ClaudeCode for coding assistance and automation
  • Collaborate with cross-functional teams on API design, security, and performance
  • Contribute to code reviews, documentation, and continuous improvement initiatives
  • Bridge backend work with occasional UI enhancements using TypeScript
Key requirements
  • Solid backend Python experience from reputable companies
  • Experience with one or more Python frameworks (FastAPI, Flask, Django)
  • Proficiency with PostgreSQL and query optimization
  • Familiarity with ClaudeCode integration or similar tooling
  • Basic TypeScript knowledge for UI bridging
  • Strong collaboration and impact-driven mindset
  • collaboration
  • adaptability
  • execution
  • Python backend development
  • PostgreSQL database design and optimization
  • API design and security best practices

Reference: WJ-747_31225901

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