• Developed RESTful APIs for internal backoffice systems using Express and Sequelize ORM, implementing JWT-based authentication and role-based access management for enhanced security and flexibility.• Created monitoring dashboards to track user growth and transaction data, automating daily task scheduling for financial summaries, including revenue calculations.• Leveraged Redis for queue management, optimizing invoice generation to handle high request volumes without timeouts.• Integrated APIs with third-party platforms for PPOB services for Wedeals platform.• Designed and implemented a flight booking feature with internal pricing for bulk bookings in the backoffice application.• Worked with teams using Git for version control to facilitate the development and collaboration process.• Collaborate with the teams to develop a mobile application for the Wedeals platform, using Flutter and GetX for state management, etc.

Build an internal project human resources and focused on service REST API using Nest.js for the backend, Mongoose for the ORM and MongoDB for the database.