Python / React development team to fix bugs and develop new features to our platform

We're looking for an agency or team with vast experience or mostly focused in Python, Django, React.js and PostgreSQL development to add new features to our B2B services web platform and possible continuous work for us.
Also desired experience with: Typescript and Redux with a meticulous eye for design.

Amongst the desired work will be: new features, code and database optimization, design and animation improvements.