• Implemented an event-driven workflow that triggers automated form creation and an SMTP-based email notification system, with cron jobs for scheduled reminder emails
• Designed a hybrid cloud storage layer combining AWS S3 (PoLP-scoped IAM, pre-signed URLs) and Google Drive integration via OAuth
• Implemented a free-trial system with secure payment method storage and autopay
• Built a role-based access control (RBAC) system with Stripe webhook–triggered Firebase workspace provisioning and an automated team invitation workflow
• Securely exposed public and authenticated APIs with per-user and per-IP rate limiting, AWS Lambda reserved concurrency, API Gateway throttling and fail-fast execution safeguards, with credentials managed via AWS Secrets Manager
• Configured reCAPTCHA score-based bot mitigation for public endpoints
• Configured CloudWatch observability with logging and metrics for system health monitoring

The project can be accessed here (it requires a credit card for signup, to access the core features)

Here is a video demo of the project (after signup): Watch Video