Sasikumar S

Full Stack Engineer

Chennai, Tamil Nadu, India4 yrs 5 mos experience
Highly Stable

Key Highlights

  • 5+ years experience in building scalable web applications.
  • Expert in React.js and Redux Toolkit for performance optimization.
  • Proven track record in developing secure API-driven applications.
Stackforce AI infers this person is a Full Stack Engineer specializing in SaaS and E-Commerce solutions.

Contact

Skills

Core Skills

React.jsRedux Toolkit

Other Skills

JavaScriptJWTCSS3API IntegrationStripe APIMongoDBExpress.jsReact HooksInterface ArchitectureUser Interface DesignE-CommerceFront-End DevelopmentRedux ThunkReact QueryPersonal Development

About

AWS Full Stack Engineer with 5+ years of experience building scalable, high-performance web applications using modern JavaScript frameworks. I specialize in React.js, Redux Toolkit, and application architecture, with a strong focus on performance optimization and clean, maintainable code. I have hands-on experience developing enterprise dashboards, role-based access control (RBAC) systems, and secure API-driven applications. My work includes implementing JWT authentication, protected routes, and modular component architectures for large-scale applications. I actively optimize applications using techniques such as memoization (useMemo, useCallback), lazy loading, and code splitting to improve performance and user experience. I collaborate closely with backend and QA teams in Agile environments to deliver reliable, scalable solutions. Core Expertise: • React.js, Next.js, JavaScript (ES6+), TypeScript • Redux Toolkit, React Hooks, React Router • REST APIs, Axios, JWT Authentication, RBAC • Performance Optimization & State Management • Node.js (Express.js), MongoDB (working knowledge) • Git, Postman, Agile/Scrum I’m currently open to Senior React / Frontend / Full-Stack (MERN) roles and available for immediate joining. Let’s connect if you’re building impactful web products 🚀

Experience

Freelance

Full Stack Developer

Jan 2026Present · 2 mos · Remote

Datanetiix solutions inc.

Frontend Developer • Custom Application

Jun 2025Dec 2025 · 6 mos · Chennai, Tamil Nadu, India · On-site

  • Developed custom web application using ReactJS, Redux Toolkit, and JavaScript.
  • Built role-based authentication using JWT (Admin, Employee, Manager).
  • Enhanced user experience by implementing lazy loading and pagination.
  • Created a dashboard with analytics, and transaction tracking.
  • Used React Bootstrap, media queries, and flexbox for responsive UI.
ReactJSRedux ToolkitJavaScriptJWTCSS3API Integration+1

Bot2do technologies

2 roles

Front-end Consultant

Promoted

Sep 2021Jun 2025 · 3 yrs 9 mos · Remote

  • Developed e-commerce websites using ReactJS, Redux Toolkit, and JavaScript.
  • Implemented category-wise, brand-wise, and product-wise search functionality.
  • Optimized performance, reducing page load time by 40%.
  • Built role-based authentication using JWT (Admin, Employee, Manager).
  • Integrated Stripe Payment Gateway for seamless transactions.
  • Enhanced user experience by implementing lazy loading and pagination.
  • Created a dashboard with charts, analytics, and transaction tracking.
  • Used React Bootstrap, media queries, and flexbox for responsive UI.
  • ✅ Key Achievements:
  • 🎯 Improved site speed by 40% using React.memo, useCallback, and lazy loading.
  • 🎯 Developed a QR-based payment system that processed 10,000+ transactions.
  • 🎯 Implemented Redux Toolkit for state management, reducing API calls by 30%.
  • 🔹 Technologies Used:
  • ReactJS | Redux Toolkit | JavaScript | Bootstrap | JWT | Stripe API | MongoDB | Express.js
ReactJSRedux ToolkitJavaScriptJWTStripe APIMongoDB+2

UI Developer

Aug 2021Aug 2021 · 0 mo · Remote

React.jsReact Hooks

Education

Vallalar College of Education (Tamilnadu University)

B.Ed in English Literature

Nov 2019May 2021

St.Joseph College of Arts & Science College,Autonomous),Cuddalore- 607001

M.A in English Literature

Jun 2017Apr 2019

St.Joseph College of Arts & Science College,Autonomous),Cuddalore- 607001

B.A English Literature

Jun 2014Apr 2017

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