CHIRANJIT DEY

Software Developer

Bengaluru,KA

Summary

Software development professional with ~3 YOE, prepared for high-impact roles within technology-driven environments. Extensive background in designing and optimizing software solutions, with commitment to delivering high-quality results. Known for effective teamwork and adaptability, with key skills in coding and system architecture.

Overview

years of professional experience

Languages

Work History

ERNST & YOUNG

07.2025 - Current

Implemented secure authentication using OIDC/OAuth, JWT, and role-based access control.
Optimized performance with bundle analysis, memoization, and code-splitting, reducing load time by a considerable amount.
Reduced UI errors via centralized error handling and defensive API client design.
Collaborated with backend teams for API contract alignment and data validation consistency.
Maintained clean, scalable frontend architecture through linting, refactoring, and best practices.

KPMG Advisory Services Pvt Limited

01.2023 - 07.2025

Developed responsive, ReactJS based UIs with lazy loading and bundle optimization, cutting load time.
Boosted Lighthouse scores by 30+ points through accessibility, profiler API and bundle analysis.
Built interactive Leaflet-based mapping and form validation systems, improving data accuracy.
Implemented XSS/CSRF protection and Content Security Policy (CSP) for frontend security hardening.
Automated PDF generation (jsPDF) and developed multi-step onboarding workflows, reducing manual processing time.

Education

B. Tech - CSE

University of Engineering & Management

Kolkata

05-2023

Skills

Tech Stack: ReactJS, TypeScript, JavaScript (ES6), Nodejs, ExpressJS, HTML5, CSS3, SCSS/SASS, Zustand, Redux Toolkit, Jest, Jasmine, Design System - Material UI, Tailwind CSS, Bootstrap 5, Wireframing, Prototyping, Figma, Responsive Design, Git, Postman, RESTful APIs

Other: Web Performance Optimization, Cross-Browser Compatibility, Webpack, Vite, Babel, Monorepos, Internationalization (i18n), Localization (l10n), Google Lighthouse, Web Vitals, CI/CD Pipelines - GitHub Actions, Jenkins, Docker (basic exposure)