Hashir S.

Full Stack Web Developer | Next.js, Web Apps, AI Chatbots | SaaS, MVPs

🏆 Next.js & Full Stack AI Developer | $100K+ Earned | ChatGPT & AI Chatbots | 46+ Projects Shipped | King’s Award Winner 4,000+ verified hours. 100% contract execution. I build high-performance Next.js web applications, custom AI chatbots (ChatGPT, Claude, RAG pipelines), and scalable full-stack SaaS platforms that launch fast, scale under real user load, and never require expensive code rebuilds down the line. Built King Charles III Award-Winning LMS & Enterprise AI platforms. ⚡ We are a great fit if you are thinking: 👉 "I need a Next.js & Full Stack developer who takes full ownership from database design to frontend deployment" 👉 "I want to integrate AI features (ChatGPT, Claude, custom AI chatbots, RAG pipelines) cleanly into my web app" 👉 "My last developer disappeared mid-build, missed deadlines, or left unmaintainable code" 👉 "I need a production-ready Web & AI MVP launched cleanly in weeks, not months" 👉 "I want clean, documented, high-performance code without relying on unpolished templates or generic code" 🌐 Next.js, SaaS & Full-Stack Web Applications I design and architect complete web ecosystems using Next.js, React, Node.js, and modern stack architectures. I specialize in building responsive, clean SaaS platforms, complex admin dashboards, and multi-tenant architectures designed to handle heavy traffic seamlessly. • A&J School (Kenmei): Custom EdTech LMS recognized with The King’s Award for Enterprise 2024 by King Charles III. • Hzad Education: Interactive learning platform with dynamic scoring algorithms, real-time assessment logic, and high-concurrency student dashboards. • KitaJaga: High-traffic community web platform built for massive concurrent user load featuring dynamic map and location integrations. • GameStack & Enterprise SaaS: Production-grade subscription management platforms, custom admin panels, and multi-tenant SaaS MVPs. 🤖 Custom AI Chatbots, ChatGPT/Claude & RAG Pipelines I transform complex enterprise data and workflows into intelligent, conversational AI tools and automated agents. Whether building custom ChatGPT-powered chatbots, vector knowledge bases, or RAG systems, I make AI features reliable and secure. • ChatGPT & Claude Integration: Conversational AI chatbots, dynamic prompt engineering, context memory management, and structured JSON output streaming. • RAG Pipelines & Knowledge Base Search: Retrieval-Augmented Generation workflows allowing chatbots to query private documents, PDFs, and enterprise databases accurately. • Sakkar AI Engine: Healthcare AI knowledge retrieval backend indexing 1.4M+ PubMed medical articles for accurate, real-time context delivery. • BudgetBae AI Engine: Automated financial management logic integrating OpenAI APIs for personalized budgeting and dynamic user reporting. • Autonomous AI Agents: Automated background agents and script automation pipelines designed for complex workflow tasks. 🛠️ Tech Stack • Frontend: Next.js (App Router, SSR, SSG), React.js, TypeScript, JavaScript, Angular, Tailwind CSS • AI & Chatbots: OpenAI API (ChatGPT / GPT-4o), Claude API (Anthropic), RAG Pipelines, Vector Search, AI Agents, Prompt Engineering • Backend & APIs: Node.js, NestJS, Express.js, Python (FastAPI/Flask), REST APIs, GraphQL, Microservices • Databases & Vector DBs: PostgreSQL, MongoDB, Supabase, Firebase, Pinecone, Pgvector, Redis • Payments & Auth: Stripe, RevenueCat, In-App Subscriptions, Supabase Auth, OAuth 2.0, Webhooks 🔢 Why Clients Choose Me: ✅ Top Rated Plus Status: Flawless 100% Job Success Score across $100K+ earned, 4,000+ verified hours, and 46 completed projects. ✅ Award-Winning Quality: Built web & AI platforms recognized at the highest international enterprise level (The King's Award 2024). ✅ Proven Next.js & AI Expertise: Specialized in high-performance Next.js web platforms coupled with modern LLM integrations (ChatGPT, Claude, Vector DBs). ✅ End-to-End Technical Ownership: I independently map database schemas, secure API service boundaries, and deploy cloud infrastructure. ✅ 0 to 4 Hour Response Time: Fast, daily communication and active coordination across US, UK, and EU time zones. Industries: SaaS & Startup MVPs · AI Chatbots & Assistants · EdTech · HealthTech · FinTech · E-Commerce & Auctions · Enterprise Dashboards 📩 Ready to launch? Send an invite or message to discuss your Next.js project, AI chatbot integration, or SaaS MVP requirements.