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SaaS#01
Fullin
Sr. Full-Stack Developer·2023 – Present
F
Fullin
Overview
Fullin is a smart rental station platform that connects physical IoT-enabled stations to a cloud backend, allowing users to rent and return items seamlessly. The system handles real-time station status updates, automated billing through Payplus, and background job orchestration for maintenance and analytics tasks.
The backend is built on FastAPI with MongoDB for flexible document storage, and TaskIQ for non-blocking background processing — ensuring the API stays responsive even under heavy station traffic. AWS EC2 and S3 underpin the cloud infrastructure, providing reliable uptime and scalable file storage for station media and reports.
Key Highlights
- ✓Real-time IoT station status monitoring and management
- ✓Payplus payment gateway integration for seamless billing
- ✓Async background task processing with TaskIQ for maintenance and analytics
- ✓RESTful API built with FastAPI for high-throughput station requests
- ✓MongoDB document store for flexible station and user data
- ✓AWS EC2 + S3 infrastructure with auto-scaling configuration
Tech Stack
FastAPIMongoDBTaskIQAWSPayplus
Project Info
- Category
- SaaS
- Period
- 2023 – Present
- Role
- Sr. Full-Stack Developer
- Status
- Shipped