Md Shafayet Hossain.

Senior Frontend Developer & AI Product Engineer bridging the gap between design and engineering to ship high-performance SaaS products.

6+ yearsLed frontend at Debutify

Base

Planet Earth

Remote, Global

Work Experience

Over six years engineering scalable frontend architectures, shipping AI-powered products, and leading the teams behind them.

Contract

RedCircle

AI Product Engineer

Delft, Netherlands (Remote)

Architected and shipped an AI-powered product photoshoot platform on a pnpm-workspace monorepo (Hono API, React, Postgres, Better Auth), with a BullMQ-backed generation pipeline on Kie.ai that turns raw product shots into studio-quality marketing images and videos at scale.

Developed the MyFitSize storefront size-recommendation widget, reverse-engineering garment sizing into gender-specific circumference models to deliver accurate fit guidance and reduce size-related returns.

Built Lifecycle, a full-stack CMS, marketing website, and booking application for a bicycle rental business, engineering its content management, availability, and reservation flows end-to-end.

Owned features end-to-end, from technical scoping and architecture through deployment and iteration, balancing engineering trade-offs against product priorities.

ReactHonoPostgreSQLBetter AuthBullMQKie.ai
Oct 2022 — 2026

Debutify

Lead Frontend / AI Product Engineer

New York, USA (Remote)

Engineered end-to-end Shopify applications, managing both React-based frontend and backend integration logic.

Led development of Debutify Reviews and Debutify Email from architectural planning to deployment, directing code reviews and engineering best practices.

Architected and built a high-performance Form Builder from scratch using React and TypeScript, utilizing a dynamic JSON-based schema.

Engineered a production-ready Email Editor by extending and customizing Easy-Email, with an esbuild-optimized build process.

Architected and maintained a comprehensive UI Component Library using React, TypeScript, and Storybook.

React.jsNext.jsTypeScriptStorybookesbuildShopify Apps
Aug 2021 — Sept 2022

Online Business Media

Senior Frontend Developer

Netherlands (Remote)

Engineered and maintained core web applications supporting over 10,000 active users, ensuring high availability and seamless UI performance.

Built and integrated a React Server-Side Rendering (SSR) system to optimize SEO and Open Graph metadata.

Directed the refactoring of legacy codebases using TypeScript, Redux, and Jest.

TypeScriptReduxJestReact SSROptimization
Aug 2019 — Sept 2021

Kreiger Business Assistance

Web Developer

Toronto, Canada (Remote)

Promoted from Web Developer to Team Lead and Full-Stack Developer within a fast-paced startup environment.

Designed and deployed bespoke full-stack web applications for enterprise clients using React.js, Node.js, and MySQL.

Provided mentorship and technical guidance to the development team, ensuring project deadlines were met.

React.jsNode.jsMySQLTeam Leadership

Selected Works

Core Capabilities

Frontend

  • React.js / Next.js
  • TypeScript / JavaScript
  • HTML / CSS
  • Tailwind CSS

State Management

  • Redux
  • Zustand
  • Jotai
  • React Router

Backend / API

  • Node.js / Express
  • NestJS / Hono
  • PostgreSQL / MongoDB
  • Firebase / Supabase / Appwrite

Build & DevOps

  • Docker / CI/CD
  • GitHub Actions / VPS
  • Webpack / esbuild / Rollup
  • Vitest / tsdx / Git

Design / UI

  • CSS / Sass
  • CSS-in-JS (styled-components)
  • Figma (UI Design)
  • Storybook / Component Libraries

Shopify

  • Theme Development
  • Liquid
  • App Development
  • Extensions