Python Developer Needed for Initial Integration Phase of Saas Project

I am looking for an experienced Python developer to assist with the first phase of a multi-stage SaaS project.

For this initial task, the work consists of integrating several pre-existing and fully tested Python classes into an already working Python script. The goal is to produce a new functional version of the script that successfully incorporates these classes and passes all required tests.
This is strictly an integration and validation task - the core classes are already implemented and verified. The developer’s responsibility will be to:
- Integrate the provided Python classes into the current script
- Ensure proper interaction between components
- Perform testing and debugging
- Deliver a stable and working updated version of the script

Scope of Phase 1:
- Code integration
- Functional testing
- Bug fixing (if needed)
- Documentation of changes (brief and clear)

Once this first phase is successfully completed, there will be additional phases and long-term collaboration opportunities on the same SaaS project.