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Debraj Karmakar

Frontend Engineer

About Debraj

I’m Debraj Karmakar, a Frontend Engineer/Software Engineer with over 3 years of experience designing and building scalable web applications. At DhiWise, I modernized legacy codebases with Next.js, React, Tailwind CSS, Node.js, Express.js and GSAP animations, boosting engagement by 35% and session duration by 22%, and led development of a TypeScript?based component library (Rollup, Storybook) to accelerate UI delivery by 40%. During my tenure at National Stock Exchange IT, I architected and built no?code financial tools featuring a React.js/Redux frontend, Java/Spring Boot with Python/Flask backend, MySQL and Redis databases, deploying 15 features that increased user productivity by 30%. I’ve also developed full?stack projects like a JWT?secured Contact Manager (Spring Boot, React, MySQL) and a PWA Weather App (React, Lighthouse?optimized), demonstrating expertise in React.js, Next.js, Redux, Zustand, Node.js, Express.js, Python, Java, Spring Boot, TypeScript, JavaScript, MongoDB, UI/UX

Skills

  • AWS
  • Axios
  • Bootstarp
  • Component Library
  • CSS
  • Docker
  • DOM
  • Eclips
  • Express.js
  • Figma
  • Framer Motion
  • GraphQL
  • GSAP Animation
  • Hibernate
  • HTML
  • java
  • JavaScript
  • Jenkins
  • Jquery
  • JSON
  • JWT
  • Material UI
  • Microservice
  • MongoDB
  • Monolithic
  • MVC
  • MySql
  • Next.js
  • Node.js
  • Postgresql
  • PWA
  • Python
  • React.js
  • Redis
  • Redux
  • Responsive Design
  • Rest API
  • Rollup
  • Sass
  • Spring Boot
  • Spring JPA
  • Spring Security
  • SQL
  • Strapi
  • Tailwind CSS
  • Typescript
  • UI/UX
  • Vite
  • Wireframe
  • Zustand

Work Experience

2024-Present
Frontend Engineer
DhiWise
  • Led migration to product-focused web architecture, modernizing legacy pages with GSAP animations, ScrollTrigger, and Tailwind CSS, resulting in a 35% increase in user engagement and 22% longer average session duration.
  • Implemented Next.js internationalization (i18n), enabling seamless multi-country subscription support, and integrated Tally Forms for centralized lead capture, increasing global conversions by 40%.
  • Developed component design system npm library, bundled with Rollup, React.js, Tailwind CSS, and TypeScript, and documented via Storybook, which improved frontend delivery speed by 40% and ensured UI consistency across all products for the AI vibe coding platform rocket.new.
  • Engineered hybrid rendering architecture using SSR + CSR with React, Vite, React Router DOM, Tailwind, Node.js, and Express configuration, enabling fast initial loads and SPA-level interactivity, improving Core Web Vitals and reducing bounce rates by 18%.
  • Redesigned and developed SEO-optimized blog architecture, integrating Mermaid.js diagrams and using Next.js ISR for on-demand updates, resulting in 50% more indexed pages and 20% higher content discoverability.
  • Enhanced SEO performance from 65% to 96% and reduced build times by 86% (from 15 min to under 2 min) through advanced Next.js optimizations and API handling, leading to a 3x increase in organic traffic and faster deployment cycles.
2022-2024
Associate System Analyst
NSEIT
  • Led the development of no-code web application tools, increasing team efficiency and performance by 20%.
  • Developed a robust ReactJS & Redux front-end and Python and Flask back-end with Redis and MySQL, deploying over 15 new features that boosted tool functionality and enhanced user productivity by 30%.
  • Streamline user requirements and software systems for improved functionality by 10% under an agile development environment.

Education & Training

2018-2022
Computer Science and Engineering
JIS College of Engineering
Bachelor of Technology in Computer Science and Engineering | JIS College of Engineering

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