Cross-Platform App Development & Integration Testing

I have the codes ready for my app, but I need an experienced developer to help me put everything together and test it using Python and Java. The app is intended for both iOS and Android platforms.

Key Responsibilities:
- Integrate and assemble the existing codebase into a functioning app
- Conduct thorough testing of component integration to ensure smooth operation
- Create and implement necessary adjustments based on test results

Ideal Skills and Experience:
- Proficiency in Python and Java
- Previous experience in cross-platform app development
- Strong background in software testing and debugging
- Familiarity with iOS and Android development standards

Your primary focus will be on testing the integration between components, ensuring that every part of the app works seamlessly together. Quality assurance is a key component of this project.