Frontend Developer

Jeffrin Binu W

Frontend Developer with 3.5 years of experience building scalable, pixel-perfect web interfaces using React and Next.js. Proficient in crafting reusable component libraries, managing application state with Zustand and TanStack Query, and delivering responsive UIs with Tailwind CSS and Bootstrap.

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ReactNext.jsVite.jsTypeScriptJavaScriptTailwind CSSZustandTanStack QueryNode.jsGitHTML5CSS3DashReactNext.jsVite.jsTypeScriptJavaScriptTailwind CSSZustandTanStack QueryNode.jsGitHTML5CSS3Dash

What I do

Turning complex ideas into refined interfaces.

Frontend Architecture

Scalable React & Next.js applications built on clean, reusable component libraries that scale with the product.

State & Data

Predictable client state with Zustand and cache-aware, optimistic data fetching via TanStack Query.

Pixel-Perfect UI

Responsive, accessible, pixel-perfect interfaces crafted with Tailwind CSS and a sharp eye for detail.

Selected Work

Projects & case studies

All projects

2024

TNReacts

Political Social Platform for Tamil Nadu

A Twitter-like social platform focused on Tamil Nadu politics, enabling users to post political opinions and engage by expressing party support through interactive party icons.

Next.jsReactZustandTanStack Query

2023

Const Admin

Construction Estimation & Project Dashboard

A frontend-focused dashboard application designed for tracking construction costs, material estimates, and high-level project metrics.

Next.jsReactTailwind CSS

Career

Experience & journey

Apr 2023 — Present

Associate Software Engineer

Populus Empowerment Network (PEN)

Building and maintaining scalable web applications and unified analytics dashboards using React, Next.js, and Vite.js.

Built a unified analytics dashboard aggregating data from multiple APIs into a single, cohesive view.
Developed a PDF report generation pipeline using Puppeteer for automated, on-demand exports.
Implemented efficient, cache-aware data fetching with TanStack Query to keep dashboards fast and fresh.

Aug 2022 — Apr 2023

Junior Software Developer

Shivalayam Software Solution

Developed interactive data dashboards and contributed to production React.js web applications in an Agile team environment.

Built real-time data dashboards using Dash (Python) for live operational monitoring.
Tracked tasks and collaborated through Jira within an Agile delivery cycle.
Designed and managed relational databases using MySQL.

Toolkit

Technical skills

01 — Frontend Frameworks

ReactNext.jsVite.js

02 — Languages

JavaScriptTypeScriptHTML5CSS3

03 — Libraries & Tools

Tailwind CSSZustandTanStack QueryNode.jsGit

From the blog

Latest writing

All articles

EngineeringJun 26, 2026· 5 min read

Demystifying the JavaScript Execution Context

A deep dive into how JavaScript executes code under the hood—exploring the Call Stack, Global Execution Context, Function Execution Context, and the Lexical Environment.

Read article