VAPT for React Native & Node.js

I need a gray box VAPT (Vulnerability Assessment and Penetration Testing) for my React Native and Node.js application.

Focus Areas:
- User Authentication
- Data Storage
- API Endpoints

Ideal Skills & Experience:
- Expertise in gray box testing
- Experience with React Native and Node.js
- Familiarity with security tools and frameworks
- Ability to provide a comprehensive report with vulnerabilities and remediation steps

Looking for detailed bids with timelines and relevant experience.