I build and maintain production-ready eCommerce platforms, full-stack web applications, and AI-powered tools with a focus on clean architecture, scalable systems, and modern development workflows.

• 💻 Full Stack Developer with 3+ years of professional remote experience
• 🛒 Experience building and maintaining international eCommerce platforms
• ⚡ Specialized in Next.js, React, TypeScript, Node.js, MongoDB, and PostgreSQL
• 🏗️ Experienced in warehouse systems, admin dashboards, analytics, payments, and database design
• 🤖 Builds AI-powered applications independently — RAG systems, AI-assisted analysis tools, and Gemini API integrations
• 🧠 Experienced with AI-assisted and specification-driven development
• 🚀 Comfortable working across development, deployment, CI/CD, and production maintenance
• 🌏 Currently based in Tianjin, China

• 🔄 Agile / Scrum development
• 📋 Linear for project and task management
• 💬 Slack for team communication
• 🤖 AI-assisted development
• 🧠 Specification-driven development
• ⚡ Claude Code & Codex
• 🚀 CI/CD workflows
• 🔍 Code reviews and production maintenance

Built and maintained two live international e-commerce platforms within a 6-person Agile/Scrum team — product variants, checkout, Stripe payments, multilingual theming, a warehouse management system, and admin/brand dashboards with analytics, audit logs, and AWS S3 image management.

Built and deployed a production e-commerce site on Next.js 16, TypeScript, PostgreSQL, and Prisma, with Cloudinary CDN, Resend notifications, Zod validation, rate limiting, and full SEO/DNS setup on an Ubuntu VPS (Nginx, SSL, PM2).

Production eCommerce systems with:

• Product and variant management
• Checkout and Stripe payments
• Warehouse and inventory systems
• Admin and brand dashboards
• Product and website analytics
• Multilingual support
• Content management
• SEO and dynamic metadata

• Retrieval-Augmented Generation (RAG) systems with LangChain + ChromaDB
• Gemini API integrations (embeddings, generation, function calling)
• AI-assisted analysis and automation tools

I enjoy working across the entire stack — from database design and APIs to frontend interfaces, authentication, deployment, and production maintenance.

AI Doc Chat — Next.js, TypeScript, FastAPI, LangChain, ChromaDB, Gemini API RAG app for grounded Q&A over uploaded PDF/text documents, with dual answer modes and source citations. Frontend on Vercel, backend on Render.

Circuit Simulator — Next.js 16, React 19, TypeScript, React Flow, FastAPI, Python, Gemini API Browser-based circuit design tool with a custom Python nodal DC solver, AI-driven circuit generation/analysis, and live signal sonification. Tested with Python unittest and Playwright.

AI Resume Analyzer — Next.js, TypeScript, FastAPI, Python, Gemini API, SQLAlchemy Extracts resume text (pdfplumber, python-docx), sends it to Gemini for structured analysis, and stores results for historical review.

Tiangong University — Tianjin, China

Bangladesh-Sweden Polytechnic Institute

• 🇧🇩 Bengali — Native
• 🇬🇧 English — Fluent
• 🇮🇳 Hindi — Conversational
• 🇵🇰 Urdu — Conversational
• 🇨🇳 Chinese — Basic

• 🛒 Building scalable eCommerce systems
• 🤖 AI-assisted software development & RAG applications
• 🧠 Specification-driven development
• 🏗️ Full-stack architecture with Next.js
• ⚡ Performance and production optimization
• 🔧 System design and software engineering

I enjoy turning complex business requirements into simple, scalable, and production-ready digital products.