Muhammad A.

I build AI voice agents that answer calls, book appointments, and qualify leads, and RAG systems that turn large document libraries into instant, accurate answers. Expert-Vetted (top 1% on Upwork), Top Rated Plus, $300K+ earned across 250+ projects and 9,500+ hours.

If you need an AI receptionist that handles inbound calls 24/7, an outbound voice agent for lead qualification and follow-ups, or an LLM assistant grounded in your own documents, this is the exact work I do every day.

WHAT I BUILD

AI Voice Agents (Vapi, Retell AI, Twilio, Deepgram, ElevenLabs)
➤ Inbound AI receptionists: call answering, FAQs, appointment booking, smart transfer to a human when needed
➤ Outbound agents: lead qualification, appointment reminders, follow-up calls
➤ Real-time call transcription, sentiment analysis, voicemail detection, and call summaries pushed to your CRM
➤ Telephony done right: SIP trunking, call routing, recording, and compliance-aware setups

RAG and LLM Systems (AWS Bedrock, Claude, GPT, LangChain, pgvector)
➤ Retrieval augmented generation over large corpora: chunking, embeddings, vector search, reranking
➤ Document Q&A assistants and AI chatbots that cite sources instead of hallucinating
➤ Ingestion pipelines with OCR (Textract), queues (SQS), and cost monitoring

Full-Stack Delivery
Node.js, NestJS, FastAPI, Python, Next.js, React Native, PostgreSQL, MySQL, Redis, Docker, AWS (EC2, RDS, Bedrock, SQS). I ship the voice AI agent, the automation around it, and the product it lives in: dashboards, auth, billing, analytics.

SELECTED WORK

🟢 SlayAI (legal AI platform): architected the RAG pipeline serving ~4,000 active users over a 300GB+ legal document corpus on AWS Bedrock, pgvector, SQS, and Textract. 97% answer accuracy in internal evals, with automated document ingestion and readiness checks.

🟢 HopDial (VoIP + AI calling platform): built live-call AI transcription and sentiment analysis on Twilio infrastructure with Deepgram STT and ElevenLabs TTS.

🟢 WhoseNo (my own product): high-traffic phone intelligence platform with 5.79M+ records, MySQL and Redis at scale behind Cloudflare, plus a companion Android app.

WHY CLIENTS KEEP ME

96% Job Success across 178 reviews. Most of my work turns long-term: clients bring me in for one agent, and I end up owning their AI roadmap. I communicate daily, demo early, and never disappear.