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I will build n8n custom node n8n javascript developer workflow n8n api integration
Finn Miller
About this gig
Build Custom n8n Nodes, JavaScript Functions & API Integrations
Need a custom n8n node or advanced API integration that isn't available out of the box? I can develop custom n8n solutions that seamlessly connect your applications, automate workflows, and extend the capabilities of your automation platform.
From creating custom nodes to integrating third-party APIs and writing JavaScript functions, I deliver scalable and reliable solutions tailored to your business.
Services I Offer
- Custom n8n node development
- JavaScript and TypeScript development
- REST API integration
- GraphQL API integration
- OAuth authentication
- Webhook implementation
- Third-party application integration
- Custom workflow logic
- Data transformation and processing
- JSON and XML parsing
- Error handling and debugging
- API testing and optimization
- Database integration
- Workflow performance optimization
- Documentation and deployment support
Why Choose Me?
- Clean, maintainable code
- Secure API implementation
- Scalable custom solutions
- Fast communication
- On-time delivery
- Well-documented development
KINDLY message me or ORDER NOW
Get to know Finn Miller
Finn Miller
Automation Engineer specialist
- FromSpain
- Member sinceAug 2026
- Avg. response time2 hours
Languages
German, English, Italian, Spanish, French
Hello there, My name is Miller. I'm an Automation Engineer specializing in n8n workflow automation, API integrations, AI-powered workflows, and business process optimization. I help businesses automate repetitive tasks, connect their favorite apps, and build reliable workflows that save time and improve efficiency.
My expertise includes custom n8n workflows, REST API integrations, CRM automation, email marketing automation, webhooks, self-hosted n8n deployment, custom node development, and AI integrations with OpenAI, ChatGPT, Claude, and Gemini.
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FAQ
Can you develop a custom n8n node for any API?
Yes. If the API provides documentation, I can build a custom node or integration that works with your workflow.
Which programming languages do you use?
I primarily use JavaScript and TypeScript for n8n custom node development and workflow scripting.
Can you integrate private or internal APIs?
Yes. As long as you provide the API documentation and necessary credentials, I can integrate private or internal APIs securely.
Will you document the custom node or integration?
Yes. Documentation is included with the Standard and Premium packages to make future maintenance easier.
