Finance Management System

Designed and developed a scalable, robust backend for a Finance Management System using Node.js, Express, and TypeScript.
Built a foundational, reusable library for standardized HTTP request/response processing, centralized error handling, and dynamic route management.
Architected the database schema using MySQL and managed data modeling, migrations, and seeders via the Sequelize ORM.
Integrated AWS S3 and CloudFront for secure document/file handling, utilizing pre-signed URLs and multer for efficient uploads.
Implemented secure authentication and authorization flows utilizing JWT, bcrypt, and Helmet to protect sensitive financial data.
Integrated Redis (ioredis) for optimized data caching and improved API response times.
Implemented robust input validation and sanitization engines using Joi to ensure data integrity and prevent injection attacks.
Enabled real-time functionality and push notifications by integrating Firebase Admin.