Muhammad A.

I build SaaS products and LLM apps end to end, the Next.js frontend, the FastAPI backend, and the AI layer in between. Whether you're launching a new product or turning an idea into a working application, I can help with frontend development, backend APIs, database integration, and AI features. AI ENGINEERING • LLM apps on OpenAI and Claude APIs - chat, generation, summarisation, structured extraction • RAG pipelines: chunking, embeddings, vector search, cited answers over your own documents • AI agents with tool use, connected to your CRM, email, calendar or internal APIs • Prompt design and output validation so results stay consistent in production • Multi-language generation (including RTL languages), AI-detection and humanisation steps • Model and cost choices: which tasks need a frontier model and which run fine on a cheaper one FULL STACK & SAAS • Next.js, React and TypeScript frontends • Python/FastAPI and Node.js backends - REST APIs, webhooks, background jobs • Supabase and PostgreSQL: auth, multi-tenant data, row-level security, edge functions • Stripe subscriptions and billing, admin dashboards, usage tracking • OAuth integrations with Google, Meta, LinkedIn, TikTok and YouTube; WordPress and Shopify publishing • Deployment on Vercel and AWS TECH STACK Frontend: Next.js, React, TypeScript Backend: Python, FastAPI, Node.js AI: OpenAI API, Claude API, LangChain, RAG Database: Supabase, PostgreSQL Payments and deployment: Stripe, Vercel HOW I CAN HELP I can work with you from the initial requirements through development of the frontend, backend, and AI integrations. If you already have a prototype or partially built application, I can help develop the next features as well. My focus is on building practical applications with maintainable code, clear communication, and a scope that matches your product goals. Tell me a little about your product idea, the problem it solves, and the AI functionality you want to build. We can discuss the right approach for your MVP.