# Björn Krinn - Full-Stack Developer & IT Manager

> "Löse Skalierungs- und Performance-Probleme in datenintensiven Systemen."

## Profile
Specialized in Backend Development, Process Automation, and IT Infrastructure.
Focus on PHP, MySQL, AI Workflows (n8n), and Cloud-native architectures.
Proven track record of optimizing performance (e.g., halving load times) and automating massive data workflows (60k+ items).

## Contact & Links
- **Website:** https://bewerbung.bjoern-krinn.de
- **LinkedIn:** https://www.linkedin.com/in/bjoern-krinn
- **Xing:** https://www.xing.com/profile/Bjoern_Krinn
- **Location:** Hamminkeln, NRW, Germany

## Core Competencies
1. **Backend & Automation:** PHP, MySQL, n8n, Eliminating manual processes.
2. **IT Management:** Active Directory, Deployment, Infrastructure, Tech SEO.
3. **Business Impact:** delivering measurable value, from code to go-live.

## Tech Stack
- **Languages:** PHP, TypeScript, SQL, Bash
- **Frontend:** Angular, TailwindCSS
- **Backend/Tools:** Node.js, Docker, Git, Composer
- **AI/Automation:** n8n, OpenAI API, Local LLMs (Ollama)

## Experience Highlights
- **Specialization (Current):** AI Agents, Tech SEO, Modern Web Arch (Symfony/Angular).
- **Spreen Online GmbH:** Reduced shop load time (4.2s -> 1.8s), automated content via AI.
- **Best Sales & Services:** Automated processing of 500 media assets/week.
- **HERRLAN-PSM:** Kept 60k products EU-compliant via automation.
- **Self-Employed:** Built custom WordPress solutions & Subdomain engines for SMEs.

## Projects
- Chromium Plugin for Tab Sorting
- Bash Script for Media Sorting (Date/GPS)
- n8n Workflow for AI Email Sorting & Spam Filter