Hi, I'm Vivek Yadav

Software Developer | Backend Specialist

Passionate about building scalable, reliable systems and delivering innovative solutions. Experienced in Java, Spring Boot, PostgreSQL, Node.js, and React. 1100+ DSA problems solved. Clean code & system design enthusiast.

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About Me

I'm Vivek Yadav, a backend-focused software engineer passionate about building scalable, reliable systems. I've worked on features like real-time notifications, role-based authorization, API optimization, and large dataset handling. My tech stack includes Java, Spring Boot, PostgreSQL, Node.js, and React. I've also built full-stack projects and solved over 1200+ DSA problems across platforms. I enjoy clean code, system design, and solving real-world engineering challenges.

Location

Rewari, Haryana, India

Professional Experience

Computer Scientist

Belzabar Software Design Pvt. Ltd.

Mar 2024 - Present

Remote

Spring Boot PostgreSQL REST APIs Java Postman

Constructed in-app notification system using Spring Boot and PostgreSQL; delivered 500+ real-time user notifications daily, ensuring 99% of users received critical updates within government software.
Enhanced form submission performance by approximately 70% (from 8-10s to 2-3s) through asynchronous processing, backend optimization, and query tuning.
Implemented efficient filtering and sorting for large datasets (10K-15K records) and managed smooth environment migrations across development, staging, and production.
Designed and implemented a robust role-based authorization and permissions system, ensuring secure and accurate access control for 2500+ users across 5+ user roles, with zero reported permission issues post-deployment.

Education

Bachelor of Engineering in Computer Science and Engineering

Chandigarh University

2020 - 2024

8.04 CGPA

XII (CBSE)

Kendriya Vidyalaya Guwahati

2019 - 2020

91%

X (CBSE)

Kendriya Vidyalaya Prayagraj

2017 - 2018

91%

Skills

Coding Languages

C++

Java

Python

Web Technologies

Spring

Node.js

React.js

Express.js

Tools & Technologies

Git

Postman

VS Code

PgAdmin

Featured Projects

PulsePoint - Hospital Management System

Spring Boot React.js PostgreSQL JWT REST APIs Bcrypt

User Authentication and email generation
Password hashing and JWT token generation
CRUD operations on patients
Sorting and Pagination

Photogram - Social Media Platform

Node.js React.js MongoDB Express.js Cloudinary

Post creation, likes, comments, follow
Secure authentication with JWT and Bcrypt.js

ChatBook - Chat Application

Firebase React.js React Bootstrap

Google Authentication and Login
Real-time chat with multiple users
Search users

Task Reminder - Chrome Extension

HTML CSS JavaScipt

Add, complete, and delete daily tasks
Tasks automatically reset at midnight
Sends notifications every hour if a task is not completed

LMS - Learing Management System WebApp

Node.js Handlebars Mongoose JWT

Student Login and Registration
Subjects displayed based on selected course.
CRUD on courses and subjects

Crispy King - Online Food Ordering WebApp

Node.js Handlebars Mongoose Cookie-Parser

Add and remove items from cart
User Authentication using cookies
CRUD operations on food items

Achievements

Kargil Batch Selection

Selected for the prestigious "Kargil Batch" at Chandigarh University — ranked among the top 150 out of 5,000+ students based on coding and analytical performance.

Competitive Programming

Solved 1100+ problems across platforms such as LeetCode, CodeChef, and HackerRank; awarded 5-star coder status on HackerRank.

CodeChef Achievement

Secured Global Rank 340 in CodeChef Starters 99

TechGig Code Gladiators

Finalist in TechGig Code Gladiators Hackathon 2022, selected from thousands of participants nationwide.

JEE-Mains Excellence

Achieved 91 percentile in JEE-Mains 2020, ranking among the top 10% of over 1 million test-takers nationally.

Get In Touch

vivekyadav138001@gmail.com

Rewari, Haryana, India