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Claude AI Agent Developer — HubSpot + WhatsApp Business Lead-Response System (Demo → Build)

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Job Details

Budget $25.00 - $47.00/hr
ExperienceExpert
DurationUnknown
Weekly hoursLess than 30 hrs/week
Client countryAbout the client
Proposals50+
Interviewing0
Invites sent0
First seenFri, Jul 17, 2026 6:51 PM
Last seenSat, Jul 18, 2026 12:16 AM

Description

Summary Overview I'm building an AI agent that responds to inbound sales leads in minutes, 24/7 — including nights and weekends — for a hospitality/events business. Leads arrive across web forms, Instagram/Facebook, email, and WhatsApp Business, and flow into HubSpot. The agent reads the inbound lead, replies in the brand's voice, qualifies it, and hands a warm, qualified lead to the human sales team. Every response passes a human-approval gate. First deliverable is a working demo that shows this happening end-to-end. If the demo is strong, this becomes an ongoing build. What you'll build (first milestone) A working demo of a Claude-based agent that: Ingests an inbound lead from WhatsApp Business and from HubSpot Responds within ~3 minutes, in a defined brand voice Qualifies the lead (asks for missing info, filters non-fits) Creates/updates the lead in HubSpot with the captured details Routes/hands off to a human at the point of negotiation or booking HARD REQUIREMENTS — do not apply unless you can prove ALL THREE Hands-on experience building agents with Claude (Anthropic) — not just prompting; real agent workflows (tool use / function calling, orchestration). You have built a system that ingests and responds to HubSpot leads — HubSpot API / workflows, contact + deal creation, two-way sync. You have built a system that responds to WhatsApp Business leads — WhatsApp Business Platform / Cloud API (inbound message handling, automated replies). This is non-negotiable; I've seen this working and I know it's possible. If you cannot show real, shipped work for all three, please don't apply — I will not be able to respond. Nice to have Automation glue (n8n / Make / Zapier), webhook plumbing Brand-voice / tone tuning for customer-facing replies Hospitality, events, hotels, or travel domain experience Speed — I need the demo quickly How to apply (read carefully — this is the screen) Add the word REALTIME to the subject so I know you read this. I will only open applications that have REALTIME in the subject. In 2–3 sentences, describe exactly how you'd connect WhatsApp Business (Cloud API) inbound messages to a Claude agent and post qualified leads into HubSpot. Link to at least one system you've built that responds to HubSpot and/or WhatsApp leads (repo, live demo, Loom walkthrough, or a past client project). One line on your availability and turnaround for a first demo. Proposals that skip the keyword, the technical answer, or the portfolio link will be passed over. About the engagement Starts with a small paid test milestone (the demo). Strong demo → ongoing build with more agents. You'd work directly with me (the founder). Clear scope, fast decisions, prompt payment.

Skills

AI Agent Development AI App Development AI Development HubSpot JavaScript Lead Generation

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