Md Kawsar Islam Yeasin

Curriculum Vitae

Md Kawsar Islam Yeasin

Front-End Focused Full-Stack Developer

Front-end-focused full-stack developer with almost 2 years of industry experience. Also experienced in freelancing and contract-based work with agencies and indie teams. I build web and mobile products, work with AI-assisted workflows, and keep codebases clean, maintainable, and production-ready. Fluent in English and comfortable with client communication and cross-team collaboration.

2 years Industry experience
622+ GitHub stars Open source footprint
Remote friendly Freelance and contract work

Skills

Frontend, backend, mobile, and tooling

Frontend

TypeScript React Next.js Tailwind CSS Redux Zustand React Query

Backend

Node.js Express.js MongoDB PostgreSQL Prisma Socket.io

Mobile & Tooling

React Native Expo Git GitHub Docker Figma Turborepo Vite WXT.dev GitHub CI/CD

Experience

Selected roles and current work

Freelance & Contract Work

Full Stack Developer | Remote
2024 - Present
  • Worked with agencies and indie teams to ship client-facing web and mobile products from planning to deployment.
  • Built and maintained projects such as Port a Vacation, Wiiz AI, and Glowmi.net with a TypeScript-first workflow.
  • Integrated AI APIs, improved performance, and coordinated delivery through clear client communication.
  • Kept codebases modular and maintainable with reusable components, clean state management, and scalable architecture.
Next.js React TypeScript Tailwind CSS Redux Node.js Express.js MongoDB PostgreSQL Prisma React Native Expo NativeWind

Techfosys

Software Developer | Remote
Jul 2025 - Present
  • Integrated AI-related API endpoints and supported backend handoff for production delivery.
  • Worked with foreign clients to gather requirements, clarify scope, and ship updates.
  • Built and maintained applications and API endpoints across multiple client projects.
  • Improved query caching, revalidation, and browser compatibility while keeping W3C standards in check.
Next.js React TypeScript Node.js Express.js MongoDB Redux Postman Figma Vercel Sentry

EzMart

Full Stack Developer | Dhaka, Bangladesh (Remote)
Jul 2025 - Present
  • Built the EzMart e-commerce experience with Next.js, Node.js, and shadcn/ui.
  • Implemented cart, checkout, and payment flows with Redux Toolkit and SSLCommerz.
  • Shipped a responsive admin and user experience with maintainable component structure.
Next.js React TypeScript Tailwind CSS Redux Node.js Express.js MongoDB shadcn/ui Postman Vercel

Neonency

Frontend Developer | Remote
Dec 2023 - September 2024
  • Optimized frontend performance, reduced loading times, and improved the overall user experience.
  • Built responsive layouts across screen sizes and fixed unnecessary re-rendering and client-side issues.
  • Improved Lighthouse scores by 10-20 points and consistently targeted 90+ whenever feasible.
React JavaScript Tailwind CSS Redux Figma Netlify Vercel Postman Sentry

Selected Projects

Client work and product builds

Port a Vacation

USA client

Vacation rental and property management website with dynamic search, filters, and detailed property pages.

Next.js React TypeScript Tailwind CSS Node.js MongoDB

Wiiz AI

German client

AI-based job marketplace with ongoing production support, bug fixes, and feature maintenance.

Next.js React TypeScript Tailwind CSS Redux Node.js shadcn/ui

Glowmi.net

Under development

AI-powered skincare e-commerce platform with English LTR and Arabic RTL support.

Next.js React TypeScript Tailwind CSS Redux shadcn/ui

Rima's Dental

Client site

Responsive dental clinic website with a polished patient-first presentation.

Next.js React TypeScript Tailwind CSS Redux Vercel

Amader Bazar

Marketplace

Marketplace website with a responsive storefront and a lightweight API-backed product flow.

React JavaScript Tailwind CSS Node.js Express.js MongoDB

TaskHub

Task tracker

Task tracking platform with a clean dashboard experience for planning, organizing, and shipping work.

React TypeScript Tailwind CSS Redux Node.js Express.js shadcn/ui

Education

Current study

Govt. Bangla College

Dhaka, Bangladesh
B.B.A (Honors) - October 2024 to Present

Open source contributions include shadcn/ui PRs and other small community efforts. I am also building micro-SaaS products, development tools, and browser extensions with an AI-assisted workflow.