Fortran Basecode Modernization

I need assistance modernizing a Fortran basecode used for scientific computations. The primary goal is to enhance readability and maintainability, as well as improve memory usage.

Key Requirements:
- Refactor code to improve readability and maintainability
- Optimize memory usage
- Ensure functionality remains intact

Ideal Skills and Experience:
- Proficiency in Fortran, especially in scientific computing contexts
- Strong background in code refactoring and optimization
- Experience with memory management in Fortran applications
- Familiarity with best practices for writing maintainable code

Looking for a freelancer who can deliver clean, efficient, and maintainable code.