Available for selected freelance projects

AI Automation Engineer.
Not an agency.

I build production-grade AI automations, backend systems and digital employees using Node.js, Supabase, React, Claude API and n8n.

Start a project → See projects

15+Automation projects

Full-stackBackend, DB, frontend

DE / ENGerman & English

§ 01 — Stack

Tools I actually build with.

No theory deck. Production systems, API integrations, workflow orchestration and real backend architecture.

Node.jsTypeScriptSupabasePostgreSQLReactClaude APIOpenAI APIn8nWhatsApp Business APIREST APIsWebhooksGitHubRailwayCloudflareGoogle WorkspaceSmartlead

§ 02 — Selected Projects

Systems, not demos.

Digital Employee for Hospitality Operations

Multi-tenant SaaS platform for autonomous guest communication, support, invoicing and operational workflows with Supabase, React, Claude API and PMS integrations.

SaaSFull product build

WhatsApp AI Appointment Setter

Autonomous WhatsApp agent for lead qualification, appointment setting, reminders and no-show handling using WhatsApp Business API, Claude and calendar integrations.

0 manualfollow-up effort

Automated Invoice Processing

Document AI pipeline for extracting, structuring and archiving incoming invoices with Claude API, n8n and Microsoft 365 / Google Workspace.

−10h/wadmin effort

Lead Gen & Email Automation

Data extraction, enrichment, AI qualification and CRM handover for automated B2B outreach infrastructure.

50+qualified leads/day

§ 03 — Workflow Architecture

How I think about automation.

input.layer

Capture

Webhooks, forms, APIs, email, WhatsApp, documents.

reasoning.engine

Understand

LLM extraction, classification, routing and decision logic.

backend.core

Execute

Node.js, n8n, database state, retries and API orchestration.

ops.dashboard

Control

React dashboards, logs, manual override and monitoring.

§ 04 — About

Engineer mindset. Business reality.

I hold an M.Sc. in Industrial Engineering and Management from TU Braunschweig. My work sits between software engineering, automation architecture and real operational business processes.

I am not positioning this as a large agency. This is my personal freelance profile: direct communication, hands-on implementation and technical ownership from architecture to deployment.

Need someone who can actually build it?

Send me a short message with your project, stack and timeline.

jannes@jannesharms.com