24/7 QA Automated testing for My Cross-Platform Apps

I'm looking for a dedicated tester for my two apps across iOS, Android, and Web. The primary focus will be on ensuring image attachment, message sending, and overall communication consistency.

Here's what I currently have:
- Some test cases: I have partially documented test cases which can be used. However, I will need your expertise to create additional tests as necessary.

Key Responsibilities:
- Conduct comprehensive testing on my apps 24/7 to identify and resolve issues before my users do.
- Implement an automated system for constant functionality tests on my apps.
- Prioritize testing of image attachment, message sending, and communication consistency.
- Collaborate with me to enhance existing test cases and create new ones.

Ideal skills and experience:
- Proven experience in app testing, particularly across iOS, Android, and Web.
- Familiarity with creating test cases and using application monitoring tools.
- Knowledge of automated testing systems.
- Strong attention to detail with excellent problem-solving skills.