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Building Complex Apps
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Building Complex Apps

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hassanzafarr/README.md

Hassan Zafar

AI Engineer · AI Integration Specialist · Full-Stack Developer

I build AI-powered systems for real workflows — from RAG pipelines and Claude API integrations to chatbots that actually work in production.

LinkedIn Upwork Anthropic Certified


What I do

I help businesses integrate AI into their existing workflows — not generic chatbots, but targeted solutions that save time and generate value. Think of it like wiring a factory for electricity: the infrastructure is new, but it plugs into what's already there.

Current focus areas:

  • RAG-based document and proposal generation
  • Claude API tool use and agentic workflows
  • MCP (Model Context Protocol) integrations
  • AI-powered SMB automation (receptionists, proposal generators, job alert bots)

Featured Projects

ProposalAI — RAG-based proposal generator using a two-pass architecture (buyer profile extraction + constrained generation). Built with Next.js 15, Supabase + pgvector, Gemini 2.0 Flash, and Groq fallback. Achieved a 90% reduction in off-domain generation in testing.

Presentable — Research assistant project at DIPF focused on AI tutors and multimodal learning technologies for feedback augmentation.

Sitaar — Full-stack web application (details on LinkedIn).

Tech Events Notifier — Weekly WhatsApp alerts for tech events near Fulda and Frankfurt, powered by Tavily API, Twilio, and GitHub Actions cron.

Telegram Job Alert Bot@dejobsalert_bot — job alerts for international tech students in Germany.


Certifications

  • Anthropic Certified: Building with Claude API
  • Anthropic Certified: Claude with the Anthropic API

Tech Stack

AI & Integrations Claude API · Gemini · Groq · RAG Pipelines · pgvector · MCP · Tool Use · Prompt Engineering · Agentic Workflows · Vector Databases

Frontend Next.js · React · TypeScript · TailwindCSS

Backend Node.js · Express · Django · Python · Inngest · Celery · Redis · WebSockets

Databases Supabase · PostgreSQL · MongoDB · MySQL · SQLite

DevOps & Cloud AWS · Google Cloud · Docker · GitHub Actions


Currently

  • MSc Global Software Development @ HS Fulda (Semester 3)
  • Research Assistant @ German University of Digital Science (GermanUDS), Potsdam
  • Building AI integration services for SMBs on Upwork
  • Writing about AI engineering on LinkedIn and X

Open to freelance AI integration projects. Reach out on LinkedIn.

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