Full-time

Senior Python Developer (CFML Migration)

Posted by EXTREVO • greater london, England, United-Kingdom

📍 greater london, England 🕒 March 02, 2026

About the Role

We’re working with a well-established, fast-growing B2B SaaS company looking for a Senior Python Developer to play a key role in the evolution of their core platform.

The business currently runs on CFML and is transitioning to Python over the next 6–12 months. You’ll help stabilise the existing system while supporting the migration toward a modern Python stack.

This is a long-term engagement.

As a Senior Python Developer you will be:

  • Developing and enhancing backend systems in Python
  • Supporting and maintaining the existing CFML codebase
  • Contributing to the architecture and implementation of the migration
  • Building and maintaining RESTful APIs
  • Working closely with the CTO and distributed UK team
  • Following modern development practices (Git, CI/CD, structured workflows)

As a Senior Python Developer you will require:

  • Strong commercia...

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