Freelancer profile translated to English.

Description

heiner.io is my brand for AI that really works — Engineering, no Marketing.

Behind heiner.io is André Heiner, GenAI & LLM Engineer from the Rhine-Main area. With heiner.io, I bring AI into production: Automations, AI Agents, and AI Content that don't end in a demo but run in everyday life — cleanly integrated, GDPR-compliant, and transferable.

What heiner.io delivers:

• AI Automation & AI Agents with n8n and Claude/LLMs — from incoming invoice processing to email triage to connecting your tools (Notion, Google Workspace, DATEV, CRM)

• AI Content & Design: Identity-consistent AI images, cloned voice, talking videos — brand content without a shooting day

• AI Visibility: Web presences that are found in classic search and in AI search engines (ChatGPT, Perplexity & Co.)

Why heiner.io:

• 12+ years of Enterprise Backend (Java/Spring) + 3+ years of productive LLM & Agentic Architectures — a real engineering foundation instead of hype

• GDPR-compliant: n8n self-hosted in the EU, your data remains under your control

• One person, one brand, one point of contact — I build, explain, and hand over, instead of tying you to an anonymous agency

• Pragmatic start with a quick win, then built up step by step — transparent and with capped effort

More from heiner.io:

• AI Lab with real, documented projects → heiner.io/labor

• Knowledge & Workshops at heiner.academy

• Member & Partner: AI Hub Hessen · AI Booster

Let's clarify in a short call where AI can save you time the fastest — heiner.io.

Languages

German
Native or bilingual
English
Conversational

Workplace preferences

Can work on-site

Zürich (up to 50km), Basel (up to 50km), Zug (up to 50km)

Event-Veranstalter, Rhein-Main (vertraulich — echten Namen nur mit Kundenfreigabe)
AI-powered Accounting Automation: Receipts Automatically to DATEV
E-COMMERCE
June 2026 - Today (2 months)
Basel, Switzerland
• AI agent reads incoming PDF invoices from the mailbox, recognizes amount, number, and payment method
• n8n routes each receipt to the correct DATEV upload mailbox and archives the original in Google Drive
• Withholding tax/§50a recognition (foreign artists) including filling out the BZSt form + duplicate storage
• Robustly built: Dry-run mode, error workflow, idempotency (no duplicate uploads), Telegram alerts
• Complete Notion documentation for handover — Result: 7 out of 7 invoices correctly processed in the first live test
Claude n8n Process Automation Datev AI Agents
heiner.io: KI-Labor, GEO/SEO & gebrandete E-Mail-Systeme
heiner.io — AI Lab, GEO Optimization & Automated Email Templates
DIGITAL AND IT
March 2026 - Today (5 months)
Zürich, Switzerland
• Development of a Next.js platform with an "AI Lab": Citable, GEO-optimized cases for visibility in AI search engines (ChatGPT, Perplexity & Co.) plus classic SEO
• Cloudflare R2 Media CDN for images/video, IndexNow + Google Search Console
• Branded, OWA-secure email template system (modular components, dark brand look, personalized avatars)
• Result: Consistent, measurable brand and content presence — Engineering instead of marketing slides
Claude Code Claude Cloudflare Gemini AI Agent
heiner.io (eigene Marke & Kundenprojekte)
Digital Twin & AI Content Pipeline (Image, Voice, Video)
BANKING AND INSURANCE
January 2025 - January 2026 (1 year)
Zürich, Switzerland
• Identity-consistent AI avatar with Higgsfield Soul (face, expressions, glasses constant across all scenes)
• Cloned voice (ElevenLabs) + lip-synced, talking videos (HeyGen / Synthesia) from plain text
• Multi-platform crossposting (Blotato, 6 channels), orchestrated by Claude agents via MCP
• Result: Branded image and video content without a shooting day — consistent, anytime, in any environment
HeyGen Claude AI Agents ElevenLabs Artificial Intelligence (AI)