Shantanu Kumar

About Me

Personal Details

Name: Shantanu Kumar

Location: Gurugram, Haryana

Email: shantanukumar7797@gmail.com

Website: shantanukumar.in

LinkedIn: shantanu7797

LeetCode: shantanu7797

Github: shantanu7797

Professional Summary

I’m a Full Stack Developer with experience in building scalable web and mobile applications using Node.js, .NET Core, React.js, and Flutter. My focus lies in backend engineering, creating RESTful APIs, integrating databases, and ensuring high-performance systems through clean architecture.

Currently, I work as a Software Associate at Culture Holidays, contributing to backend development, API integration, and Flutter-based mobile app projects that enhance product performance. Previously, as an SDE Intern at the same organization, I worked with Node.js, Express.js, and SQL Server, optimizing backend services and improving scalability.

Frontend Technologies

React.js
JavaScript (ES6+)
TypeScript
HTML5 & CSS3
Tailwind CSS
Redux

Backend Technologies

Node.js
Express.js
.NET Core
C#
RESTful APIs
Microservices Architecture

Databases

MongoDB
SQL Server
MySQL
PostgreSQL

Mobile Development

Flutter
Dart
Firebase
Cross-Platform App Deployment

Tools & Others

Git & GitHub
Postman
Agile Development
API Testing & Integration
Cloud (AWS Basics)
Data Structures & Algorithms (DSA)
Problem Solving

Experience & Education

Aug 2025 – Present

Software Associate

Culture Holidays

Working as a Full Stack Developer focusing on backend and mobile app development. Building and maintaining scalable systems using Node.js and .NET Core, and developing cross-platform mobile applications using Flutter. Responsible for API integrations, performance optimization, and improving product efficiency.

Jan 2025 – Jul 2025

Software Development Engineer Intern

Culture Holidays

Contributed to backend development using Node.js, Express.js, and SQL Server. Implemented RESTful APIs and optimized database queries for better scalability and performance. Collaborated with the team on real-world projects following Agile methodologies.

2023 – 2024

Full Stack Developer

Freelance & Personal Projects

Designed and developed end-to-end applications using MERN stack and .NET Core. Built projects like a Blood Bank Management System with secure authentication, role-based access, and real-time data handling. Focused on writing clean, maintainable, and efficient code.

Ongoing

Competitive Programming

LeetCode & GeeksforGeeks

Solved over 500+ problems combined on LeetCode and GeeksforGeeks. Strengthening understanding of Data Structures & Algorithms and enhancing logical and analytical problem-solving skills.

2021 – 2025

Bachelor of Technology, Computer Science and Engineering

Netaji Subhas Institute of Technology, Bihta

Completed core courses in Software Engineering, Algorithms, Database Systems, and Web Technologies. CGPA: 7.72. Participated and won in hackathons, robotics competitions, and machine learning internships.

Continuous Learning

Technology Enthusiast

Self-Learning & Upskilling

Constantly learning and exploring emerging technologies in web and mobile development. Expanding expertise in Flutter, AWS Cloud, and System Design. Passionate about solving real-world problems through scalable and impactful tech solutions.

My Services

Frontend Development

Creating modern, responsive, and interactive web interfaces using React.js, JavaScript (ES6+), and Tailwind CSS. Focused on optimizing performance and enhancing user experience through clean and reusable component-based design.

Backend Development

Building secure and scalable server-side applications using Node.js and .NET Core. Experienced in designing RESTful APIs, integrating databases, and ensuring smooth communication between services in distributed systems.

Cross-Platform App Development

Developing and deploying mobile applications using Flutter and Dart. Skilled in creating performant apps for both Android and iOS with seamless UI/UX and efficient API integration.

API & Microservices Development

Designing and implementing RESTful APIs and microservices architectures to support high scalability and flexibility. Experienced with Postman, JWT Authentication, and modern integration techniques.

Database Design

Designing optimized database schemas and queries using MongoDB, SQL Server, and PostgreSQL. Ensuring data integrity, normalization, and efficient performance across different environments.

Cloud & Deployment

Basic experience with AWS and CI/CD pipelines. Skilled in deploying full-stack applications and maintaining reliable, production-ready environments.

Problem Solving

Passionate about Data Structures & Algorithms and competitive programming. Solved 500+ problems on LeetCode and GeeksforGeeks, focusing on efficient, optimized code solutions.

Featured Projects

MERN Stack E-Commerce

React • Node.js • MongoDB • Express

Full-featured e-commerce platform built with MERN stack featuring user authentication, product management, shopping cart, and secure payment integration.

User registration and authentication
Product catalog with search and filters
Shopping cart and wishlist functionality
Secure checkout process
Admin dashboard for product management

GitHub Live Demo

.NET Core Web API

C# • .NET Core • SQL Server • JWT

RESTful Web API built with .NET Core featuring JWT authentication, Entity Framework, and comprehensive CRUD operations with proper error handling.

JWT token-based authentication
Entity Framework Core integration
RESTful API design principles
Comprehensive error handling
API documentation with Swagger

GitHub API Docs

Get In Touch

Contact Information

Location

Gurugram, Haryana, India

Email

shantanukumar7797@gmail.com

Portfolio

shantanukumar.in

LinkedIn

linkedin.com/in/shantanu7797

LeetCode

leetcode.com/u/shantanu7797