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I build production-ready Django REST APIs and React frontends for European and US startups — from greenfield systems to legacy modernization. I've delivered systems trusted by FAO United Nations, KPN Netherlands, and MKB-Jurist (Dutch law firm) — handling everything from architecture to AWS deployment. ─── What I Build ─────────────────────────────────────── 🔧 Backend & APIs Django REST Framework, Fastapi, Node.js, scalable REST API design, legacy refactoring, Django ORM optimization, query tuning and indexing ⚛️ Frontend React.js, TypeScript, TanStack Query, Material UI, Tailwind CSS, Bootstrap, pixel-perfect responsive UI 🗄️ Database & Performance PostgreSQL optimization, Redis caching, Celery async tasks, query tuning, indexing strategies ☁️ DevOps & Cloud AWS EC2/S3/RDS, Docker, Nginx, CI/CD GitHub Actions, Ansible, Terraform, Linux server management ─── Why Clients Choose Me ────────────────────────────── ✅ Delivered for FAO United Nations government portal ✅ EU clients — MKB-Jurist Dutch law firm, KPN Netherlands ✅ Full lifecycle ownership — architecture to deployment ✅ Clear daily communication and on-time delivery ✅ Available for immediate start ─── Tech Stack ───────────────────────────────────────── Python | Django | DRF | Fastapi | Node.js | React | TypeScript PostgreSQL | Redis | Celery | Docker | AWS | Nginx Ansible | Terraform | GitHub Actions | OpenAI API

𝐈 𝐬𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞 𝐢𝐧 𝐜𝐫𝐞𝐚𝐭𝐢𝐧𝐠 𝐟𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 𝐰𝐞𝐛 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐭𝐡𝐚𝐭 𝐢𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐞 𝐭𝐡𝐞 𝐟𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐚𝐧𝐝 𝐛𝐚𝐜𝐤𝐞𝐧𝐝 𝐟𝐥𝐚𝐰𝐥𝐞𝐬𝐬𝐥𝐲. 𝐌𝐲 𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐢𝐧𝐜𝐥𝐮𝐝𝐞 𝐀𝐏𝐈 𝐢𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧, 𝐟𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐚𝐧𝐝 𝐛𝐚𝐜𝐤𝐞𝐧𝐝 𝐝𝐚𝐭𝐚 𝐡𝐚𝐧𝐝𝐥𝐢𝐧𝐠 𝐨𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧, 𝐬𝐞𝐫𝐯𝐞𝐫-𝐬𝐢𝐝𝐞 𝐥𝐨𝐠𝐢𝐜 𝐝𝐞𝐬𝐢𝐠𝐧 𝐚𝐧𝐝 𝐢𝐦𝐩𝐥𝐞𝐦𝐞𝐧𝐭𝐚𝐭𝐢𝐨𝐧, 𝐢𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 𝐨𝐟 𝐮𝐬𝐞𝐫-𝐟𝐚𝐜𝐢𝐧𝐠 𝐩𝐚𝐫𝐭𝐬 𝐰𝐢𝐭𝐡 𝐛𝐚𝐜𝐤𝐞𝐧𝐝 𝐬𝐲𝐬𝐭𝐞𝐦𝐬, 𝐚𝐧𝐝 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐬𝐩𝐞𝐞𝐝, 𝐬𝐞𝐜𝐮𝐫𝐢𝐭𝐲, 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐚𝐛𝐢𝐥𝐢𝐭𝐲 𝐨𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧. I’m a Full Stack Developer with more than 6 years of experience delivering modern, scalable, and user-focused applications. I’ve built end-to-end solutions—from responsive frontends to secure backends and APIs—that help clients turn ideas into high-performing digital products. 𝑾𝒉𝒂𝒕 𝑰 𝑫𝒐 𝑩𝒆𝒔𝒕 ✦ Frontend Development: React.js & Next.js, Tailwind CSS, modern UI/UX, reusable components, state management. ✦ Backend Development: Django, Django Rest Framework & Node.js for secure, scalable APIs. ✦ Database Management: PostgreSQL, MySQL, MongoDB, SQLite—optimized queries, relationships, migrations. ✦ Business Solutions: Full-stack apps with dashboards, automation, reporting tools, API integrations, and role-based systems. ✦ Automation & Reporting: PDF generation, email reports, data visualization, and admin dashboards. ✦ Deployment & Version Control: Git/GitHub, cPanel, Vercel, and Docker-based workflows. 𝑻𝒆𝒄𝒉 𝑺𝒕𝒂𝒄𝒌 — Frontend: React.js, Next.js, Tailwind CSS, Redux, SWR — Backend: Django Rest Framework, Node.js, Express.js — Databases: PostgreSQL, MySQL, MongoDB, SQLite — Others: REST APIs, PDF generation, authentication systems, cloud deployment, Git 𝑾𝒉𝒚 𝑾𝒐𝒓𝒌 𝑾𝒊𝒕𝒉 𝑴𝒆? 🔸 Clean, maintainable, and scalable code. 🔸 Clear communication and regular progress updates. 🔸 Projects optimized for performance and user experience. 🔸 Proven experience with e-commerce platforms, dashboards, and secure user management systems. Keywords: full stack developer | fullstack developer | front end developer | frontend developer | backend developer | backend development | web developer | web app development | website development | build website | create website | develop website | rebuild website | custom website | full stack website | website developer | website creation | website design | web application | ecommerce store | react | react js | react frontend | next.js | django | django developer | django react | node.js | express js | mern stack | mongodb | api | admin dashboard | dropshipping website | portfolio | software developer | python | business website | django website | html css

I'm Ashik Zinnat Khan, a senior full-stack developer specializing in back-end development using Python and Django. I have more than 10 years of development experience and am willing to take on new challenges. The types of projects that I'm most interested in are: - Django - Django REST Framework - Flask - FastAPI - AI Chatbot Development - RAG Chatbot - AI Service Integration (OpenAI, Mistral, Claude) - Node.js - Docker - React, Next.js, Angular - DevOps & Deployment (AWS, DigitalOcean, Linode) - Kodi add-on development If you have a project that you would like to get me involved in, please don't hesitate and let's connect. Thanks for visiting my profile!

⭐ FastAPI / Django Developer | Legacy Systems & Shopify Backend Automation Businesses often struggle with outdated tools like Excel, MS Access, or disconnected Shopify workflows. I help companies modernize and automate operations by building secure, scalable web applications using FastAPI, Django, Next.js, and Shopify APIs. ✅ What I Do Best - Convert Excel / Google Sheets / MS Access into full web-based systems - Build Shopify private apps and custom backend integrations - Develop high-performance REST APIs with FastAPI - Create modern admin dashboards with Next.js - Deploy complete solutions on low-cost VPS with CI/CD 🚀 Recent Work Examples ✔ Migrated an MS Access-based inventory system into a Django + PostgreSQL web platform ✔ Built Shopify API automation for order + inventory sync with a custom CRM ✔ Developed FastAPI middleware connecting WhatsApp orders into MySQL database ✔ Deployed production apps using Docker, Nginx, GitHub Actions CI/CD 🛠 Core Technical Stack Backend: FastAPI, Django, Laravel Frontend: Next.js, React, TypeScript Databases: PostgreSQL, MySQL, SQL Server, Supabase Deployment: VPS, Docker, Nginx, CI/CD pipelines Integrations: Shopify Admin API, Webhooks, Automation ⭐ Why Clients Hire Me - Clear communication and business-first thinking - Reliable delivery with clean, scalable architecture - Strong experience modernizing legacy systems - Full-cycle support: build → integrate → deploy → maintain If you're looking for a developer who can modernize your workflow or build powerful backend integrations for Shopify, I’d be happy to discuss your project.

I'm a Python Django developer specializing in building and rescuing production-grade SaaS applications. With 2+ years of experience — including leading a development team and solo-architecting a multi-tenant platform from scratch — I focus on clean architecture, scalable backends, and real-world performance. My work covers two distinct modes: taking over broken systems and restoring them, and building complex platforms from the ground up. PROJECT 1 — Sellzzy (Multi-Tenant Digital Commerce SaaS) Sellzzy is a live multi-tenant SaaS platform where digital creators sell products, manage subscriptions, and run storefronts. Over nearly two years I grew from developer to leading the engineering team, owning architectural decisions and maintaining delivery standards on a live production system. ¶ The problem when I joined: • Homepage took 90+ seconds to load — effectively unusable • Dependencies severely outdated with cascading compatibility failures • Code quality issues blocking developer contributions • Zero documentation, preventing team onboarding ¶ What I delivered: • 98% load time reduction — from 90+ seconds to under 1 second • Store owner dashboard loads in ~0.5 seconds • Customer storefront loads in ~1 second average • Designed a hybrid Django MVT + REST API architecture — server-side rendering for speed and SEO, AJAX-driven APIs for dynamic data — delivering a modern SPA-like experience without a full frontend framework rebuild • Refactored the entire codebase, upgraded all dependencies, and restructured the architecture • Built comprehensive documentation that restored developer velocity across the team • Led the engineering team for the final 7 months: architectural decisions, code review, and delivery standards PROJECT 2 — CashSheets (Multi-Tenant Accounting SaaS) CashSheets is a multi-tenant accounting SaaS I architected and built solo, from an open source foundation (django-ledger) to a fully structured production-ready system. ¶ What I built: • Multi-tenant architecture using django-tenants with full tenant isolation • Pluggable integration framework connecting QuickBooks Online, Square POS, and Wave — built once, reused for every future integration • Wagtail CMS as the platform-level administration layer • Complete subscription management system built inside Wagtail • Dual-level Stripe integration — platform billing and tenant-level payment processing as two separate concerns in one codebase ¶ TECH STACK • Backend: Python, Django, DRF, Celery, Redis, RabbitMQ, django-tenants, Wagtail • Frontend: React.js, Next.js, Tailwind CSS, JavaScript, AJAX • Databases: PostgreSQL, MySQL • Cloud: AWS (EC2, S3, RDS, SES, CodePipeline), Digital Ocean, Docker, Nginx, CI/CD • Integrations: Stripe, PayPal, Shopify, QuickBooks Online, Square POS, Wave ¶ SERVICES • Multi-tenant SaaS architecture and development • REST API design and development (DRF) • Legacy system rescue — performance, architecture, dependency modernization • Full-stack development (Django + React / Next.js) • Third-party integrations (accounting, payments, POS) • Stripe subscription billing — platform and tenant level • AWS deployments and CI/CD pipelines • Wagtail CMS implementation • MVP development from idea to production • Technical team leadership and code review I have handled both sides of the hardest Django work — rescuing a broken production system under live traffic, and architecting a complex multi-tenant platform from scratch with no one else to defer to. If you are building a SaaS product, need a Django system architected properly, or want a developer who has led teams and delivered on real production systems — let's talk.

Affordability, Reliability & Professionalism are my three main working principles to help you meet your objective. I'm a Django Developer, having more than two years of experience, I worked with numerous clients and completed many tasks for my clients with 5-star feedback as well. My expertise is in Database-Filtering, REST-APIs, Cloud Computing using GCP which made me effective than other developers; moreover, I have much experience building real-time chat applications; which interests me the most among all other works. I hope you would view my "Portfolio" to know about my projects and my accomplishments, so that I may assure you that I am someone for whom this unfinished task is waiting for. Thank you for your valuable time, I hope to see you as my next client.