Full-Stack Developer: Transaction System & Authentication

We are seeking a skilled backend developer to implement a robust transaction processing system. This role involves setting up the necessary database infrastructure, building a secure user authentication system, implementing core transaction processing logic, and establishing comprehensive error handling and logging mechanisms. The ideal candidate will have a strong understanding of database design, security best practices, and experience with building scalable backend systems.

**Responsibilities:**
- Design and implement the database schema to support transaction data.
- Develop and integrate a secure user authentication and authorization system.
- Implement the core logic for processing various types of transactions, ensuring accuracy and efficiency.
- Develop robust error handling strategies to manage potential issues during transaction processing.
- Implement comprehensive logging to track transaction status, errors, and system activities.

**Deliverables:**
- A fully functional and tested transaction processing module.
- A secure and operational user authentication system.
- A well-documented database schema.
- Implemented error handling and logging configurations.