Hi, I'm Arun Raj

I build enterprise UIs as a Frontend Software Engineer |

Frontend Software Engineer with 3+ years of professional engineering experience architecting high-performance, accessible (WCAG 2.1), and scalable web applications using React.js, TypeScript, and Redux Toolkit.

arunrajvradhakrishnan@gmail.com +91 90487 11385 South India, India

Download Resume (PDF) Explore Projects

Profiles: LinkedIn GitHub WhatsApp

React & TypeScript

Core Architecture

Redux Toolkit

Predictable State Flow

SPAs & Responsive UIs

Web & React Native

React & TypeScript

Core Architecture

Redux Toolkit

Predictable State Flow

Years Experience

Enterprise Web & Mobile

React & TS

Frontend Specialist

Component Architecture

Redux RTK

State Management

Predictable Data Store

WCAG 2.1

Accessible UIs

Tailwind CSS & Material UI

Professional Summary

Architecting Resilient Frontend Solutions

Proven track record translating intricate business requirements into high-performance, accessible, and scalable digital interfaces.

Frontend Software Engineer with 3+ years of professional engineering experience architecting and delivering high-performance, accessible, and scalable web applications using React.js and TypeScript. Proven success translating intricate Figma mockups and complex business requirements into pixel-perfect, responsive digital interfaces with Tailwind CSS and Material UI. Adept at eliminating performance bottlenecks through advanced client-side rendering techniques, managing state with Redux Toolkit, integrating multi-tier RESTful APIs, configuring Webpack build pipelines, and ensuring zero-regression releases with Jest unit and integration tests.

1. Architectural Rigor

Deep experience designing modular SPAs with strict TypeScript interfaces, reusable token-based design systems, and component isolation that scale gracefully across multi-region enterprise users.

2. Performance & Optimization

Obsessed with Core Web Vitals (LCP, CLS, INP). Expert in eliminating redundant re-renders via Redux Toolkit & React.memo, route-based code splitting, dynamic imports, and asset bundle trimming.

3. Enterprise Reliability

Zero-regression standards through Jest unit & integration tests, robust Axios interceptors with standardized error boundaries, Agile Git branching workflows, and AI-velocity tooling.

Work History

Professional Experience

Hands-on engineering impact delivering production-grade web applications and high-availability dashboards.

Sequoia Applied Technologies

Software Engineer Kerala, India

June 2023 – Present

React.js TypeScript Tailwind CSS Redux Toolkit React Native Jest Webpack & Vite Axios Interceptors

Enterprise Dashboard Architecture: Architected and delivered responsive, enterprise-grade web dashboards and customer portals using React.js, TypeScript, and Tailwind CSS, serving multi-region enterprise users.
Predictable State & Render Reduction: Implemented predictable application state management utilizing Redux Toolkit and React Context API, eliminating state inconsistency and cutting redundant re-renders across data-intensive interfaces.
Performance Optimization: Optimized web performance via advanced rendering techniques (route-based code splitting, dynamic imports, and lazy loading), improving Core Web Vitals and reducing initial page load times by ~35%.
Design System & Accessibility (WCAG 2.1): Partnered closely with UX designers to translate intricate Figma prototypes into pixel-perfect, accessible (WCAG 2.1) UI components with reusable token-based design systems.
Multi-Tier REST API Integration: Integrated multi-tier RESTful APIs via Axios with robust request/response interceptors, standardized error handling, and asynchronous loading states for seamless frontend-backend data flow.
Cross-Platform Mobile Engineering: Engineered cross-platform mobile application modules using React Native, aligning state architecture and user experience with web platforms.
Automated Testing & Release Quality: Authored automated unit and integration tests using the Jest framework to maintain high code reliability, reduce regression risks, and uphold production-grade standards.
Build Pipelines & Team Mentorship: Streamlined dev workflows and asset bundling by configuring Webpack and Vite, collaborating via Git branching models and Agile sprint cadences. Mentored junior developers on frontend best practices and modern ES6+/TypeScript patterns.

Foundational Background & Transition

Prior Professional Experience → Transitioned in 2023

2021 – 2023

Prior Professional Experience: Service Advisor (Apco Hyundai) & NDT Quality Inspection Technician (Geecy Apave at Reliance Refinery) — Transitioned to full-time Software Engineering in 2023.

Quality & Inspection Rigor

NDT quality inspection instilled extreme attention to detail, standards compliance, and systematic defect elimination.

Client & Technical Coordination

Service advising developed strong cross-functional communication, diagnostic problem-solving, and team workflow management.

Technical Stack

Technical Skills

Technologies and tools applied daily to deliver performant, testable, and accessible digital products.

Frontend & Languages

Core Application Stack

React.js TypeScript JavaScript (ES6+) React Native SPAs HTML5 CSS3

State Management & APIs

Predictable Data Flow

Redux Toolkit (RTK) Redux Thunk React Context API RESTful APIs Axios Interceptors Async Data Caching

Styling & Design Systems

UI Accessibility & Parity

Tailwind CSS Material UI Responsive Web Design Token-Based UI Systems Web Accessibility (WCAG 2.1)

Performance & Optimization

Rendering & Resource Tuning

Core Web Vitals (LCP, CLS, INP) Route-Based Code Splitting Dynamic Imports Lazy Loading React.memo Profiling

Testing & Tooling

Reliability & Build Systems

Jest React Testing Library Webpack Vite Git & GitHub npm

Agile & AI Velocity

Modern Developer Experience

Claude Code (AI Velocity) Figma Mockups Agile / Scrum Git Branching Code Reviews

Engineering Highlights

Key Engineering Projects

Production-grade systems highlighting complex state architectures, performance optimization, and modular UI components.

https://app.atndnz.enterprise/dashboard

ATNDNZ

Enterprise Platform

Enterprise Attendance & Workforce Management Platform

Designed and developed a centralized, responsive web dashboard allowing administrators to monitor workforce check-ins, generate real-time analytical reports, and manage employee records.

Key Engineering Features:

Centralized web dashboard for workforce check-in monitoring
Real-time analytical report generation and employee record management
Role-based routing and secure session management across mobile & desktop

React.js Redux Toolkit Tailwind CSS REST APIs

https://builder.profile-app.internal/preview

Profile Builder

Dynamic Web App

Dynamic Template-Driven Document Generation Web App

Engineered a dynamic template-driven document generation web app with customizable layouts and real-time state preview, empowering users to create customized professional documents.

Key Engineering Features:

Dynamic template-driven document generation with real-time state preview
Flexible layout and style customization engine
High-performance client-side rendering and asset bundling via Webpack

React.js TypeScript Webpack Tailwind CSS

https://components.tour-guide.internal/react

Virtual Tour Component

Interactive Module

Interactive Web Virtual Tour Component

Developed a plug-and-play, step-by-step user walkthrough component in React to elevate user onboarding and increase feature adoption across client portals.