Python JavaScript Full Stack Web Developer Fintech

Company: Quant Capital
Apply for the Python JavaScript Full Stack Web Developer Fintech
Location: London
Job Description:

Overview

In this role you will design, develop and test high-performance, data-driven web applications for a leading fintech client. You’ll work across the stack to deliver scalable tools and websites that handle millions of requests daily, with a focus on low-latency trading data presentation. You will influence architecture, prototype new technologies, and collaborate with cross-functional teams in an agile environment. This is a high-impact role at a technology-driven trading firm that values excellence and innovation.

Pay / Benefits

  • large bonus from day 1
  • excellent salary and benefits package
  • ongoing training
  • structured career path

Responsibilities

  • Design, develop and test high-performance, scalable web applications
  • Build front-end interfaces using ExtJS/HTML/CSS
  • Develop Python-based back-end services and APIs
  • Work in an agile, fast-paced environment and prototype new technologies
  • Shape architecture and select open source solutions to improve performance
  • Create data-driven tools and websites serving global users

Key requirements

  • JavaScript
  • ExtJS (ideally) or other front-end frameworks
  • Django and Python development experience
  • Linux/Unix experience
  • Linux command line
  • 5+ years of commercial development
  • Python ecosystem and MVC
  • HTML5
  • CSS3
  • Bachelor in Computer Science
  • MySQL or PostgreSQL
  • agile mindset
  • proactive problem solving
  • collaboration across teams
  • JavaScript
  • ExtJS
  • Django

Posted: September 14th, 2026