Pappu Kumar Email & Phone Number

California, United States

California, United States

**Fintech App Development:** - Created a fintech app with payment transfer functionality similar to modern Paytm and PhonePe using React Native. - Included features for loan and crop insurance functionalities tailored for farmers. - Integrated payment gateway and payouts using Cashfree. - Developed the backend with Node.js and MongoDB to integrate Cashfree API. - Collaborated with a developer on this fintech product.- **MoneyPlant App Development:** - Developed MoneyPlant app with a developer using React Native and Spring Boot PostgreSQL. - MoneyPlant features include employee loans based on salary, payment transfer, stock investment, mutual funds, SIP, games, gold loans, and credit cards. - Worked on frontend for onboarding (signup), login, and KYC for new users. - Developed side navbar, fixed bottom navbar, home screen, and connected screens. - Implemented QR code scanning and generation, notifications, user profile, game design, and credit card application. - Worked on the gold loans section.- **Backend Architecture for MoneyPlant:** - Designed the architecture of the entire backend for MoneyPlant using Spring Boot and PostgreSQL. - Learned Spring Boot and PostgreSQL from scratch while working on frontend, then started building the backend application. - Designed model schema for the backend. - Created APIs for onboarding users, login, and mobile number verification. - Developed various other APIs to support frontend functionalities mentioned above.

Bengaluru, Karnataka, India

After being promoted to Software Engineer at MatrIOT Solution in Bangalore, I undertook several key projects, significantly contributing to backend development, database management, and IoT solutions.### Key Contributions:1. **M3-SUITE Backend Update:** - **Node.js Upgrade:** Updated the backend from Node.js version 5 to the latest version, improving overall system performance, security, and maintainability. - **Database Migration:** Transitioned the database from MongoDB to MySQL, enhancing data integrity and management efficiency.2. **Asset Tracker Backend:** - **Primary Focus:** Worked primarily on the Asset Tracker backend, updating the schema model, events, and WebSockets to enhance real-time data handling and communication. - **Collaboration:** Coordinated with team members who worked on the cBin backend to ensure integrated functionality across applications.3. **Dockerization:** - **Dockerfile Creation:** Developed Dockerfile for the Node.js application to streamline the development and deployment process. - **Docker Compose Configuration:** Created Docker Compose configurations for backend applications, ensuring efficient container management and deployment.4. **IoT Product Development:** - **Python Logger File:** Developed a logger file in Python with JSON property and validation functions, crucial for accurate data recording and validation from IoT devices. - **WebSocket Communication:** Built a WebSocket enabling efficient message exchange between two laptop clients and the server, facilitating real-time communication.These projects allowed me to leverage my skills in modern web technologies, containerization, and IoT development, further enhancing my expertise and contributing to the company's technological advancements.

Bengaluru, Karnataka, India

As a Developer Trainee at MatrIOT Solution in Bangalore, I contributed to several key projects and honed my skills in full-stack development. My responsibilities included upgrading existing applications, implementing new features, and ensuring smooth functionality across platforms.### Key Contributions:1. BIO DATA Web Application: - Frontend Development: Utilized Angular to build an interactive and user-friendly interface. - **Backend Development:** Employed Node.js with Express and MongoDB for efficient data management and server-side operations. - Feature Implementation: Added CRUD operations, integrated third-party APIs, and incorporated WebSocket and MQTT for real-time communication. Ensured robust data validation for secure and accurate data handling. - **Database Migration:** Transitioned the backend database from MongoDB to MySQL to enhance data integrity and performance. - Mobile App Development: Replicated the web application as an Android app using Ionic, a cross-platform framework, providing a consistent user experience across devices.2. **M3-SUITE Web Application:** - **Frontend Upgrade:** Independently upgraded the frontend from Angular 8 to Angular 16, improving the application's performance, security, and user interface. - Dockerization: Dockerized both the frontend and backend applications to streamline deployment processes and ensure consistency across development, testing, and production environments.These projects allowed me to apply and expand my knowledge in modern web technologies, real-time communication, and containerization, preparing me for more advanced roles in the tech industry.

Bengaluru, Karnataka, India

Full Stack Mern Development, Computer Software Engineering

B.Tech, Mechanical Engineering

Intermediate, Pcm

9.4 Cgpa