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Samiullah S.
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Samiullah S.

n8n & AI Automation Expert | Voice AI Agents, WhatsApp, Retell

Senior Agentic AI Engineer with 5+ years of experience and 4+ AI systems running in production. Top Rated on Upwork with $40K+ earned across 30 projects and 21 reviews, all 5 stars. Live and running: WhatsApp AI agents for clinics, a lead generation automation flow for business, and email automation with lead generation and follow-up flows. Also RAG at 94 percent retrieval accuracy over a 500+ page legal archive, and OCR at 97 to 99 percent accuracy. I build AI agents, AI customer support agents, AI voice agents, WhatsApp AI agents, AI calling agents and n8n automation workflows for clinics, healthcare, manufacturers, logistics, wholesale, accounting and other businesses that do not have an in-house AI team. Founder of N6 Solution, working with clients in the US, EU and Gulf. THE 5 AI AGENTS I BUILD 1. WhatsApp AI agent for clinics: live in production. Books, reschedules and cancels appointments against a real calendar, answers patient questions and hands over to staff when needed. Built on the WhatsApp Cloud API. 2. AI voice agent and AI calling agent with Retell, Vapi, ElevenLabs and Vonage: answers and makes calls for real estate and software companies, qualifies leads, sets appointments and logs every call to the CRM. Includes an AI calling system on Vonage. 3. AI customer support agent: a WhatsApp support agent, web chat agent and email support agent that answers from your own documents with the source shown. Creates tickets, routes issues and escalates to a human. 4. AI sales and lead generation agent: researches prospects, drafts outreach, runs email automation and follow-up automation, and tracks replies. Built and running in n8n and Make. 5. AI quoting agent: turns customer requirements into priced quotes using pricing rules, with version control and role-based access. Built for an industrial robotics manufacturer on React and FastAPI. Also built: a multi-agent platform where users create agents from the UI and attach n8n workflows as callable nodes, RAG over Mexico's legal archive with LangChain, Milvus and Voyage AI, and OCR document processing with YOLOv11 and OpenCV. INDUSTRIES I WORK IN Healthcare and clinics (live work): a WhatsApp AI agent running for clinics. It books, reschedules and cancels appointments on a real calendar, answers patient questions, sends appointment reminders and follow-ups after visits, and hands over to reception staff when needed. Also AI voice agents that answer clinic calls and book appointments. Manufacturing and industrial (live work): a quoting platform for an industrial robotics manufacturer, built on React and FastAPI. It turns customer requirements into priced quotes using pricing rules, with version control and role-based access. Also RFQ to order flows, quote follow-up automation and document extraction with OCR. Real estate: voice agents for inbound calls, lead qualification and viewing appointments. Software and SaaS: voice agents for lead qualification and appointment setting, plus AI SaaS builds. Logistics and transport: order and booking automation, driver allocation, WhatsApp delivery updates, proof of delivery and invoices. Wholesale and distribution: WhatsApp orders turned into invoices, inventory lookup, stock alerts and payment reminders. Accounting and professional services: invoice and document extraction, record matching, approval workflows and reports. Legal and ecommerce: legal document RAG, Shopify order and inventory sync, support routing. AGENTS AND AUTOMATION I DELIVER AI customer support agents, AI voice agents, WhatsApp AI agents, AI calling agents, AI appointment setting agents, AI sales agents, AI lead generation agents, AI quoting agents, RAG agents and multi-agent systems. AI workflow automation in n8n, Make, Zapier and GoHighLevel: lead generation, email automation, follow-up automation and CRM automation. GoHighLevel pipelines, workflows and SMS and email follow-ups, connected to AI agents. HOW I WORK I build with Claude Code and Cursor daily, which means working AI agents and automation fast, and I review everything that ships. Agents get tool calling, retries, confidence thresholds, citations and a human handoff, and I test on your real cases before go-live. I also do AI consulting. TECH Agents: LangGraph, LangChain, LlamaIndex, CrewAI, MCP, multi-agent orchestration Automation: n8n, Make (Integromat), Zapier, GoHighLevel, webhooks, REST APIs, API integration Voice AI: Retell, Vapi, ElevenLabs, Vonage LLMs: OpenAI API, Anthropic Claude API, Gemini, Ollama RAG: vector databases (Pinecone, Milvus, Qdrant, FAISS, pgvector), embeddings, re-ranking Backend: Python, FastAPI, Django, PostgreSQL, Supabase, AWS, Docker Integrations: WhatsApp Cloud API, GoHighLevel, HubSpot, Twilio, Google Sheets, Google Calendar, Shopify, Stripe, Slack Need a customer support agent, voice AI agent, WhatsApp agent or calling agent? If you know what you want to build, I can build it. If you only know the problem, we can start there.

🇵🇰Islamabad, Pakistan$20/hr100% JSS5.00 (21)Since Jun 2022
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Earnings and projects

MRR
$1.6k

Last 6 months ÷ 6

World#30,637 / 412k
🇵🇰Country#3,521 / 52.9k
Revenue, last 30 days
$1.1k

Last 6 months: $9.4k

Total earnings
$41k

Billed in all: $42k

World#88,332 / 412k
🇵🇰Country#7,807 / 52.9k
Per project
$1.5k

$3.1k in the last 6 months

World#93,736 / 412k
🇵🇰Country#7,641 / 52.9k
Projects, last 6 months
3
100% fixed0% hourly
World#66,479 / 412k
🇵🇰Country#13,400 / 52.9k
Projects in all
27

Across 30 contracts

67% fixed33% hourly
World#106,301 / 412k
🇵🇰Country#17,454 / 52.9k

Earnings, last 30 days

$42k+$1.1k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$40k$41k$42kNo dataOct 8Oct 23Nov 7

Read once a week before Oct 22, 2026, daily since. Dotted: longer than usual between two readings. Hatched: over two weeks without one.

Skill rankings: Top 7% in Lead Generation

Ranked by MRR among everyone on Upwork with the skill.

  1. #20Vapi140 freelancers · 🇵🇰 #10Top 14%
  2. #23Retell AI116 freelancers · 🇵🇰 #16Top 20%
  3. #53LangGraph299 freelancers · 🇵🇰 #22Top 18%
  4. #84AI Voice Agent Development429 freelancers · 🇵🇰 #46Top 20%
  5. #90Twilio743 freelancers · 🇵🇰 #38Top 12%
  6. #156AI Agents877 freelancers · 🇵🇰 #34Top 18%
  7. #265Prompt Engineering2,859 freelancers · 🇵🇰 #52Top 9%
  8. #319Chatbot Development3,106 freelancers · 🇵🇰 #123Top 10%