Hi, I'm Sagar Gupta, a Computer Science Engineering student at PW Institute of Innovation, pursuing my B.Tech in CSE.

I'm focused on Backend Development and enjoy building APIs, working with databases, implementing authentication, and solving real-world problems through software.

My current backend stack includes Node.js, Express.js, MongoDB, SQL, REST APIs, and JWT authentication, while I'm also expanding my skills in Java, Spring Boot, Docker, Microservices, and System Design.

I also actively participate in Open Source and developer communities.

• 🎓 B.Tech CSE Student — PW Institute of Innovation
• 🌟 Google Student Ambassador 2026
• 🌱 GirlScript Summer of Code 2026 Contributor
• 💻 Focused on Backend Engineering
• 🔨 Building REST APIs and full-stack applications
• 📚 Learning Spring Boot, Docker & Microservices
• 🧩 Practicing Data Structures & Algorithms

ElevateCV AI helps users create professional resumes and analyze them against job requirements with AI-assisted functionality.

• Developed backend REST APIs using Node.js & Express.js
• Implemented JWT-based authentication
• Built protected backend routes
• Integrated MongoDB Atlas
• Developed resume management APIs
• Worked on resume analysis functionality
• Implemented backend business logic and validation
• Connected frontend with backend APIs
• Worked on deployment and backend configuration

Node.js • Express.js • JavaScript • MongoDB • JWT • REST APIs • Git

An Airbnb-inspired platform designed to help users discover and book suitable accommodations through a structured web application.

• Designed and developed the backend architecture
• Developed REST APIs for users, properties and bookings
• Implemented authentication and authorization
• Designed and managed database models
• Built property management APIs
• Developed booking-related APIs and business logic
• Implemented validation and error handling
• Connected backend APIs with the frontend
• Managed development using Git and GitHub

Node.js • Express.js • JavaScript • MongoDB • REST APIs • JWT • Git

• 👤 User authentication
• 🏠 Property listings
• 🔍 Search & filtering
• 📅 Booking management
• 🔐 Protected routes
• 🗄️ Database integration
• ⚡ RESTful API architecture

• Promoting Google technologies among students
• Exploring and demonstrating AI-powered tools
• Supporting student-focused technology initiatives
• Participating in community activities and learning initiatives
• Connected with mentors and the developer ecosystem

Open Source Contributor

• Contributed to open-source projects
• Collaborated with developers and contributors
• Worked with Git and GitHub-based workflows
• Participated in community-driven development

• 🌟 Google Student Ambassador 2026
• 🌱 GirlScript Summer of Code 2026 Contributor
• 💻 Open Source Contributor
• 🧩 81+ LeetCode Problems Solved
• 🧠 126+ GeeksforGeeks Problems Solved
• 🚀 Built multiple full-stack and backend-focused projects

• IBM — Full Stack Development
• PW — AI Chatbot
• Georgia Institute of Technology — Write Professional Emails in English

Currently practicing:

Arrays • Strings • Hashing • Linked Lists • Stack • Trees • Searching • Sorting • Algorithms

Backend Engineering
        ↓
Spring Boot
        ↓
Microservices
        ↓
Docker
        ↓
System Design
        ↓
Scalable Applications

• ⚙️ Spring Boot
• 🔐 Backend Security
• 🏗️ System Design
• 🔄 Microservices
• 🐳 Docker
• ☁️ Cloud Fundamentals
• 🧠 Data Structures & Algorithms

Build → Break → Debug → Learn → Improve

I believe strong software engineering comes from continuously building real projects, understanding why systems work, learning from failures, and improving through consistent practice.

I'm interested in:

• 🚀 Backend Engineering
• 🌱 Open Source
• 💻 Software Development
• 🧠 System Design
• 🤝 Developer Communities
• 💼 Internship Opportunities