Fazal R.

I build the software behind AI-powered products from scalable Python/FastAPI backends and full-stack SaaS applications to production LangGraph agents, RAG systems, and business automation. Need a backend engineer to build reliable APIs? A full-stack developer to ship your SaaS? Or an AI engineer to turn a prototype into a production system? I can work as part of your engineering team or own the complete implementation, including architecture, APIs, databases, frontend, AI orchestration, integrations, testing, and deployment. Top Rated Plus | $30K+ Earned on Upwork | 5-Star Client Feedback PROVEN EXPERIENCE • AI Agent Platform — Helped engineer Xgnosis, a production AI workflow platform with LangGraph orchestration, configurable agents, MCP integrations, persistent state, and third-party integrations. • Backend & Full-Stack Engineering — Built Python APIs, asynchronous workflows, authentication, databases, SaaS dashboards, background workers, and integrations for production applications. • HR Automation — Developed multi-agent recruiting workflows that reduced processing time by 70% and supported up to 1,500 concurrent users. • Enterprise RAG — Built an AI knowledge assistant supporting up to 1,800 concurrent users, reducing query resolution time by 60%. • Email & Support Automation — Developed AI workflows that reduced ticket triage time by 80%. WHAT I SPECIALIZE IN 1. Backend Engineering: Python, FastAPI, Django, REST APIs, SQLAlchemy, PostgreSQL, Redis, Celery, authentication, asynchronous processing, and API integrations. 2. Full-Stack SaaS: Next.js, React, TypeScript, PostgreSQL, Supabase, dashboards, customer portals, and cloud deployment. 3. AI Agents & RAG: LangGraph, LangChain, MCP, LangSmith, OpenAI, Claude, Gemini, agent memory, tool calling, retrieval, and multi-agent orchestration. 4. Automation & Integrations: GoHighLevel, HubSpot, Gmail, Google Drive, webhooks, third-party APIs, Playwright, and business workflow automation. PRODUCTION ENGINEERING I prioritize maintainable architecture, automated testing, observability, security, reliable state management, and recovery from failures. Whether you need an engineer to strengthen your existing team or someone to take ownership of a complete AI solution, I focus on delivering working, maintainable software. A previous client described my work as "World-class AI developer 100/100." Send me your project requirements, existing architecture, or workflow challenge. I'll help identify a practical technical approach and the right first milestone.