Santhoshkumar R

React JS Developer

Salem

Summary

Senior Frontend Engineer with 4.5+ years of experience designing and building scalable, high-performance web applications using React.js and modern frontend ecosystems. Proven expertise in developing FinTech trading platforms and large-scale global eCommerce applications. Strong background in frontend architecture, state management, performance optimization, and responsive UI design, with hands-on experience delivering real-time data-driven dashboards and SEO-optimized applications. Adept at collaborating with cross-functional teams to translate complex business requirements into maintainable, user-centric, and visually engaging interfaces.

Overview

years of professional experience

Work History

Senior Software Engineer / Frontend Lead

IndiaCharts Share Trading Pvt Ltd

10.2024 - Current

Project: Web Strike Money (Trading & Analytics Platform) - Refactored and modernized a large legacy frontend codebase, significantly improving readability, scalability, and long-term maintainability. - Re-architected the frontend system and rebuilt critical modules from scratch using modern React.js best practices. - Designed a scalable component architecture and standardized project folder structure to support future growth. - Developed real-time trading dashboards using React.js with Highcharts and TradingView, handling high-frequency data updates. - Built interactive UI modules for options analytics and market scanners, focusing on real-time data visualization and usability. - Implemented centralized Redux state management for complex, high-volume trading flows. - Optimized rendering performance by eliminating unnecessary re-renders and improving state handling. - Collaborated closely with backend, product, and business teams to deliver reliable, user-focused features.
Project: Strike Money – SEO & Performance Optimization - Led development of SEO-optimized webpages using Next.js (SSR + CSR hybrid rendering). - Optimized Core Web Vitals, achieving LCP ~0.5s and FCP ~0.2s. - Implemented structured data, SEO scripts, and performance enhancements for improved search visibility. - Configured webpack and next.config.js for build and runtime performance optimization. - Integrated Git pre-push hooks for linting and error checks to enforce code quality. - Used WordPress CMS to dynamically render SEO content within the Next.js application.

Software Engineer / Frontend Developer

NU Logic / NU Technologies

11.2020 - 10.2024

Project: EB-REEBOK (eCommerce Platform) - Designed and developed modular React component architecture using functional and class components. - Converted Figma and HTML designs into scalable, reusable UI components. - Implemented Redux-based state management for product listings, cart, and checkout flows. - Integrated GraphQL queries and REST APIs for efficient data fetching. - Improved application performance by optimizing component lifecycle and rendering behavior.
Project: EB-REEBOK (PIM System) - Built and maintained UI modules using React, Material UI, GraphQL, and MongoDB. - Collaborated with clients and functional teams on requirements and enhancements.
Project: Christie Cookies / WildForkFoods / Road Runner Sports - Developed scalable storefront features using React, Redux, Tailwind CSS, SCSS, TypeScript, and Contentful CMS. - Implemented Storybook for component isolation and UI previews. - Integrated third-party tools such as Freshdesk Chatbot and Google Tag Manager (GTM). - Wrote unit and integration tests using Jest and Enzyme to reduce regression issues.

Education

Bachelor of Engineering - Electronics & Communication Engineering

K S Rangasamy College of Technology

Tiruchengode, Tamil Nadu

01.2020

Skills

Frontend & UI Reactjs, Nextjs, JavaScript (ES6), TypeScript, JSX, HTML5, CSS3, SCSS, Tailwind CSS, Material UI

State & Data Management Redux, Redux Toolkit, GraphQL, REST APIs, Data Flow Architecture

Architecture & Performance Modular UI Architecture, Component-Driven Design, SSR & CSR (Nextjs), Performance Optimization, Rendering Optimization

Testing & Quality Jest, React Testing Library, Enzyme, UI & Integration Testing

Career Highlights

4.5+ years of hands-on experience in React-based frontend development
Strong expertise in FinTech trading platforms and real-time dashboards
Proven ability to re-architect large frontend systems
Deep understanding of performance optimization and scalable UI design
Experience leading frontend initiatives and mentoring best practices

Timeline