Responsibilities:- Architected and developed scalable backend solutions using Typescript, Node.js, Express.js, and NestJS, while designing and implementing RESTful APIs for efficient service communication.- Working in a team of 5, including PMs, QAs, and junior developers.- Designed and implemented a MySQL relational database, focusing on performance optimization and scalability.- Integrated SendGrid (Twilio) for Email and SMS services, and managed secure payment processing workflows using Stripe.- Developed and maintained user authentication and authorization systems utilizing JWT.- Integrated open-source solutions for internal projects and led the refactoring of the backend and database, migrating from SQLite to MongoDB.- Crafted responsive and user-friendly interfaces with CSS and Material UI, utilizing React, Redux, and React Query to develop dynamic and efficient frontend applications.

SMS Appointment Reminder Web App- Created a client and appointment management application that stores client data, tracks last appointments, and schedules SMS reminders for future appointments, enhancing client retention and operational efficiency.Vehicle Technical Inspection Web App- Developed a comprehensive web application for a Vehicle Technical Inspection business, improving employee efficiency and providing valuable insights to the business owner by tracking vehicle data and generating daily, weekly, and monthly statistics.