HARIHARAN KUMAR

Junior Web Developer

Remote (India) 0+ yrs exp 81 · Excellent

About

Junior Web Developer with hands-on experience across 2 internships building responsive websites and web apps using HTML5, CSS3, JavaScript, and React.js, integrated with REST APIs and MongoDB/MySQL. Comfortable with Git/GitHub workflows, cross-browser/cross-device compatibility, and Agile collaboration with designers, backend developers, and QA. Quick learner, eager to grow with modern frameworks and deployment tools like Vercel and Netlify.

Skills & Expertise (41)

React.js Intermediate

7.2/10

Years Exp

CSS3 Intermediate

6.4/10

Years Exp

JavaScript Intermediate

6.4/10

Years Exp

HTML5 Intermediate

6.4/10

Years Exp

HTTP Intermediate

6.0/10

Years Exp

GitHub Intermediate

6.0/10

Years Exp

Git Intermediate

6.0/10

Years Exp

CRUD Intermediate

6.0/10

Years Exp

RESTful APIs Intermediate

6.0/10

Years Exp

Express.js Intermediate

6.0/10

Years Exp

Node.js Intermediate

6.0/10

Years Exp

bootstrap Intermediate

6.0/10

Years Exp

Next.js Intermediate

6.0/10

Years Exp

API Testing Intermediate

5.6/10

Years Exp

Postman Intermediate

5.6/10

Years Exp

Cross-Browser Compatibility Intermediate

5.6/10

Years Exp

Typescript Intermediate

5.6/10

Years Exp

Java Intermediate

5.6/10

Years Exp

Python Intermediate

5.6/10

Years Exp

SQL Intermediate

5.6/10

Years Exp

OOP Intermediate

5.6/10

Years Exp

DSA Intermediate

5.6/10

Years Exp

SOLID principles Intermediate

5.6/10

Years Exp

UI Intermediate

5.6/10

Years Exp

Ux best practices Intermediate

5.6/10

Years Exp

Agile Intermediate

5.6/10

Years Exp

code reviews Intermediate

5.6/10

Years Exp

Unit Testing Intermediate

5.6/10

Years Exp

Jest Intermediate

5.6/10

Years Exp

Docker Intermediate

5.6/10

Years Exp

Vercel Intermediate

5.6/10

Years Exp

MySql Intermediate

5.6/10

Years Exp

MongoDb Intermediate

5.6/10

Years Exp

MVC Intermediate

5.6/10

Years Exp

JWT Intermediate

5.6/10

Years Exp

Tailwind CSS Intermediate

5.6/10

Years Exp

Cd workflows AWS (S3 AWS (EC2 Spring Boot Responsive Web Design

Work Experience

Web Full Stack Development Intern

EduSkills

Apr 2025 - Jul 2025

Assigned to build a full-stack module independently; designed and developed a Java (Spring Boot, Hibernate) + React application exposing RESTful APIs, resulting in a fully functional CRUD system reviewed and approved by mentors. Faced inconsistent frontend-backend data sync; implemented structured application state management and MVC architecture, cutting integration bugs by an estimated 30% during testing cycles, debugging and resolving issues collaboratively. Worked within Agile sprints alongside designers, backend developers, and QA, delivering features on a 12-week project timeline while maintaining clear project documentation and updates.

Full Stack Development (MERN) Intern

CubeAI Solutions Pvt. Ltd.

Oct 2024 - Jan 2025

Tasked with delivering client-facing, responsive websites under tight deadlines; built and shipped 3+ production React.js applications serving 500+ end users, collaborating via Git/GitHub source control and peer code reviews in a 4-member team. Identified slow page loads flagged by clients; refactored component rendering and optimized asset loading, improving Lighthouse performance scores from ∼65 to 90+ and website speed/performance across delivered projects. Owned integration of RESTful backend APIs with webhooks for real-time data sync, ensuring cross-browser and cross-device compatibility with 100% responsive UI across mobile, tablet, and desktop breakpoints.