Senior Firebase Engineer – Security

Need a senior Firebase engineer to perform a focused 5–8 hour audit of an existing FlutterFlow application.

Scope includes:

• Firestore security rules review
• Storage bucket protection review
• Authentication flow validation
• Protected route verification
• Video storage protection (signed URLs vs client-side only)
• Role-based access control validation (agent / broker)
• Identification of structural or scalability risks

Deliverable:

• Written findings
• Severity levels
• Clear recommended fixes
• Estimated hours required for stabilization

This is NOT a UI redesign job.

This is NOT feature expansion.

This is a backend security + infrastructure audit only.

Must have:

• 5+ years Firebase experience
• Deep Firestore security rule expertise
• Cloud Storage signed URL experience
• Authentication implementation experience

Looking for senior-level precision and clarity.

Contract duration of less than 1 month. with 30 hours per week.

Mandatory skills:

Firebase, Application Security, iOS, Smartphone, Mobile App Development, iOS Development