Expense Tracker — API for financial tracker

Role: Backend Developer. Developed architecture and implemented a secure RESTful API for a financial accounting application. What has been done:

Authentication: Registration and login via JWT tokens.
Transaction logic: CRUD operations for income/expenses linked to categories.
Analytics: Endpoints for data aggregation (statistics by month/year) for charts on the frontend.

#Backend #NodeJS #restapi #JWT #database #express.js