Ranjith Kumar

Frontend Developer

Hyderabad $5/hr Full-time 4+ yrs exp 93 · Outstanding

About

I’m Ranjith Kumar, a Frontend Developer with 4+ years of experience in React.js, JavaScript, Ionic React, Redux, and REST API integration. I have experience building scalable web applications, real-time dashboards, and secure role-based systems.

Skills & Expertise (51)

React.js Advanced

8.5/10

Years Exp

HTML5 Advanced

8.0/10

Years Exp

CSS3 Advanced

8.0/10

Years Exp

Git Advanced

8.0/10

Years Exp

Typescript Intermediate

7.5/10

Years Exp

Node.js Intermediate

7.0/10

Years Exp

lazy loading Cross-Browser Compatibility code splitting Memoization Role-Based Access Control (RBAC JWT Authentication Authentication & Authorization Encryption Decryption Next.js Express.js GitHub VS Code Chrome DevTools React DevTools Vite Webpack NPM Agile Scrum Javascript (ES6+ useEffect JSON REDUX Redux Toolkit Context API React Router Dom Axios bootstrap Ant design functional components Custom Hooks Usestate Promises useReducer useMemo useCallback useRef useContext React.memo Component Lifecycle Virtual DOM REST API Integration WebSockets Fetch API

Work Experience

Front-End Developer

Tech Vibe S7 Pvt. Ltd.

Dec 2024 - Jan 2026

Architected and delivered scalable React.js frontend applications following component-based architecture and reusable UI design patterns, reducing development time by 30% through standardized component libraries. Designed and implemented multi-level Role-Based Access Control (RBAC) systems with secure permission handling, supporting Admin and Agent user hierarchies across enterprise platforms. Integrated REST APIs and WebSockets to build real-time dashboards, live notifications, and dynamic data-driven interfaces with sub-second update latency. Improved application load performance by 40% through strategic implementation of lazy loading, code splitting, and memoization (React.memo, useMemo, useCallback) techniques. Collaborated cross-functionally with backend engineers and QA teams in Agile/Scrum sprints, delivering features on schedule with high test coverage.

Front-End Developer

S7 Technologies Pvt. Ltd.

Nov 2021 - Nov 2024

Developed responsive web and cross-platform mobile applications using React.js and Ionic React, ensuring consistent, accessible UI/UX across iOS, Android, and web platforms. Built end-to-end feature modules including real-time chat systems, approval workflows, booking engines, media upload pipelines, and transactional interfaces integrated with REST APIs. Implemented Role-Based Access Control (RBAC) and JWT-based authentication/authorization systems for multi-role enterprise applications. Optimized frontend performance for cross-browser compatibility through profiling with Chrome DevTools and React DevTools, resolving rendering bottlenecks and improving UX. Partnered with backend teams to design and consume scalable API contracts, improving integration efficiency and data handling reliability.

Education

Bachelor of Science (BSc) – Computer Science - Dr. M.G.R. Educational and Research Institute

2010 - 2013 · India

Certifications

No certifications added yet

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Profile Score Breakdown

📷 Photo 10/10

📄 Resume 10/10

💼 Job Title 10/10

✍️ Bio 10/10

🛠️ Skills 20/20

🎓 Education 10/10

⏱️ Experience 13/15

💰 Rate 5/5

🏆 Certs 0/5

✅ Verified 5/5

Total Score 93/100

Profile Overview

Member sinceJun 2026

AvailabilityFull-time

Availability Details

Visa Status

Need Sponsorship

Relocation

Open to Relocation

Skills (51)

Click a skill to find developers with the same skill

React.js HTML5 CSS3 Git Typescript Node.js lazy loading Cross-Browser Compatibility code splitting Memoization +41 more

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