Long term support for custom Python code

I’m seeking a developer partner to provide Long-Term Support (LTS) for my existing Python code that utilizes pandas for data manipulation.
The code currently runs on Windows. This code runs 2-3 times a month, only in the first week of the month.
Key Requirements:
- Long-term support including troubleshooting and updates (2-4 years).
- I require an SLA contract. Corrections to code are time critical and shall be addressed within 24 hours.
Ideal Skills:
- A small to mid-sized company with at least 50 relevant employees. Support should be available in all cases. Time zone is Asia/Europe.
- Expertise in Python and pandas.
- Experience with finance (accounting) related projects
- Strong problem-solving skills.
- Availability for ongoing support is a must.
Please only bid if you have a proven track record in Python development and are committed to long-term engagement.