Privacy Policy
Last Updated: October 22, 2026 • Effective Date: October 22, 2026
Our Core Privacy Philosophy
At BackendPrep (operated at backendprep.io), we respect your privacy. We only collect the minimal information necessary to deliver our interview preparation platform, manage your learning progress, and maintain your account credentials. We never sell your personal data.
Information We Collect
When you visit or interact with BackendPrep, we may collect the following categories of information:
When you sign in via Google OAuth or other authentication providers, we receive your name, email address, and avatar image URL as provided by your OAuth profile. We do not receive or store your Google password.
Questions marked as completed, bookmarked challenges, quiz attempt histories, scores, and roadmap milestone checkboxes are saved to track your readiness metrics across devices.
How We Use Your Information
We use the data collected strictly for the following purposes:
- Authenticating your identity and maintaining your active sessions.
- Syncing your question progress, bookmarked problems, and quiz results across your devices.
- Providing customer support and responding to curriculum feedback inquiries.
- Enforcing account security, preventing spam or abuse, and diagnosing technical issues.
- Delivering important transactional updates regarding your account or subscriptions.
Third-Party Service Providers
We partner with trusted third-party cloud infrastructure providers to securely host, store, and process platform data:
We utilize Supabase for identity management, row-level security, and encrypted database hosting. Your authentication tokens and user profiles are processed through Supabase infrastructure.
Used to verify your identity when you opt to sign in with your Google account. We only request basic profile permissions (email and profile).
Used for edge hosting, SSL termination, and content delivery with global DDoS mitigation and standard server access logging.
Cookies & Local Storage
BackendPrep uses standard browser technologies including HTTP cookies and HTML5 local storage:
- Authentication Session Cookies: Essential cookies required by Supabase Auth to keep you securely signed in.
- Local Storage: Used to temporarily cache user progress, UI preferences, and filter configurations for instantaneous page loads.
Data Retention & Your Rights
You retain full ownership and control over your personal data:
- You may request a complete export of your user profile and stored progress at any time.
- You can request account deletion, which permanently purges your profile, progress records, and OAuth connections from our active databases.
- To exercise any of these rights, please contact us directly at contact@backendprep.io.
Changes to this Privacy Policy
We may periodically update this policy to reflect enhancements to our features or regulatory changes. Any updates will be posted to this page with an updated "Last Updated" date.
Questions About Your Privacy?
If you have questions, privacy concerns, or data deletion requests, reach out to our privacy officer.
contact@backendprep.io