Senior Software Engineer/Architect – Fintech

Company: Quant Capital
Apply for the Senior Software Engineer/Architect – Fintech
Location: London
Job Description:

Overview

In this Senior Software Engineer/Architect role, you will own the design, development and maintenance of early-stage solutions for a pioneering fintech client. You’ll help shape the platform’s trajectory within an agile, fast-paced environment, leveraging open-source and cloud-native tech to deliver scalable SaaS. You will collaborate with market practitioners and engineers to evolve architecture, interfaces, and pipelines, driving high-impact outcomes in financial markets. This role offers the chance to evangelise new technologies and influence critical architectural decisions.

Responsibilities

  • Design, develop and maintain early-stage solutions
  • Shape architecture and interface design over a large codebase
  • Lead and collaborate in an agile, fast-paced environment
  • Evangelise and prototype new technologies to improve performance
  • Build, test, and operate distributed systems and pipelines with CI/CD

Key requirements

  • Track record of developing quality software
  • Contribute to open-source communities
  • Strong STEM education (ideally Computer Science)
  • Team player with leadership ability
  • Experience directing the direction and design of large codebases
  • Strong Python skills
  • Some Linux experience
  • Interest in Kubernetes and cloud-native tech
  • Experience building, testing, and operating distributed systems
  • Experience building pipelines with continuous delivery and automated testing
  • leadership
  • team player
  • proactive evangelist
  • Python
  • Linux
  • Kubernetes

…

Posted: September 14th, 2026