Project: WhatsApp integrated with MCP server via n8n
I’m looking for an experienced developer to help build a WhatsApp integration that connects into an MCP server, using n8n as the orchestration layer.
The goal is to create a reliable, scalable workflow where WhatsApp messages can be received, processed, and responded to via the MCP server, with n8n handling logic, routing, and automation between components.
This is not a proof of concept. I’m looking for something that is built properly, documented clearly, and designed with real-world use in mind.
UK or European contractors only.
1 - Scope of work:
Set up WhatsApp integration using an official API approach
Connect WhatsApp message flow into n8n
Configure n8n workflows to communicate with an MCP server
Handle message intake, processing, and responses cleanly
Implement sensible error handling, retries, and logging
Provide clear documentation so the system can be maintained and extended
2 - What I’m looking for:
Strong experience with n8n
Solid understanding of WhatsApp APIs and messaging workflows
Experience working with server-side integrations and APIs
Experience with Facebook Business Manager and Facebook Developer setup, including app configuration, permissions, webhooks, and access management
Practical mindset. I care about things working reliably, not just looking good in theory
Ability to explain decisions and trade-offs clearly
Please answer the following in your proposal. Short, direct answers are fine:
a - Describe a real project where you integrated WhatsApp using an official API. What stack did you use and what problems did you have to solve?
b - What is your experience level with n8n? Have you built production workflows rather than demos?
c - Have you worked with Facebook Business Manager and Facebook Developer before? Briefly describe what you handled.
d - How would you design error handling and retries for message delivery in this setup?
e - Are you based in the UK or Europe, and what is your typical availability?
f - Proposals that do not answer these questions will not be considered.
Milestones and KPIs
I expect the work to be delivered in clear stages with agreed outcomes.
Milestone 1: - Architecture and setup
WhatsApp API access confirmed and configured
Facebook Business Manager and Developer setup complete
High-level architecture agreed and documented KPI: Messages can be received from WhatsApp into a test endpoint
Milestone 2: - n8n integration
WhatsApp messages flowing into n8n
Core workflows created and readable
MCP server successfully called from n8n KPI: End-to-end message flow working in a controlled test environment
Milestone 3: - Stability and handling
Error handling, retries, and logging implemented
Edge cases tested and addressed
No silent failures KPI: System runs reliably under repeated test scenarios
Milestone 4: - Documentation and handover
Clear documentation of workflows and setup
Notes on how to extend or modify the system
3 - Clean handover KPI: System can be understood and maintained without developer dependency
4 - Nice to have
Experience with conversational systems or AI-assisted workflows
Familiarity with scaling message-based systems
Clean, readable workflow design inside n8n
I’m hands-on, clear about objectives, and straightforward to work with. I value sensible technical decisions, clean implementation, and open communication. If you see a better or more robust way to approach something, I’m open to hearing it, provided it’s grounded in practicality.
Please include brief examples of relevant work or integrations you’ve built, particularly anything involving n8n, WhatsApp, or Facebook Developer tooling.
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