Berlin based developer building production-ready product interfaces, full-stack web apps, and practical AI automation workflows with TypeScript, Next.js, Astro, n8n, and PostgreSQL.
Product-grade frontend engineering
Clean, responsive interfaces with strong UX, maintainable component structure, and implementation detail that holds up beyond a demo.
Full-stack product slices
Web apps that connect UI, backend logic, data, auth, forms, deployment, and tests into usable product flows.
AI automation and agent workflows
n8n and agent systems that connect tools like Gmail, Calendar, Notion, Telegram, GitHub, and custom memory layers.
| Stackwerkhaus Website | Current production website for Stackwerkhaus with Next.js 16, React 19, Drupal-backed publishing, MDX case studies, GSAP motion, SEO primitives, and live deployment. |
| AI Agent Workflow | Public, sanitized n8n workflow for a personal AI operations agent with Telegram, Gmail, Calendar, Notion, GitHub memory, schedules, and leak validation. |
| Lead Generator | Sanitized n8n case study for an AI-assisted lead research and scoring system with enrichment, queueing, scoring, and outbound handoff architecture. |
| Documentation RAG | Recruiter-friendly RAG automation case study covering documentation ingestion, scheduled re-indexing, chunking, embeddings, vector search, and assistant UX. |
| Invoice Sorting | Sanitized invoice and receipt automation case study with chat/form intake, AI extraction, validation, archive storage, accounting handoff, and confirmation flow. |
| Codariq | Live Astro landing page and lead flow for a DACH AI automation offer with package framing, quiz UX, SEO/legal pages, Vitest, and Playwright coverage. |
| TravelArranger V1 | Currently-building SvelteKit and Supabase travel-planning product with auth-aware routes, trip creation, packing and invite slices, and AI suggestion roadmap. |
| tandm | Contributor-friendly SwiftUI/Firebase iOS build log for freelance collectives, projects, tasks, invoices, and roadmap-driven MVP delivery. |
Frontend
Backend and data
Automation and AI
Quality and workflow
Open to frontend, full-stack, and AI automation engineering roles in Berlin or remote.
Strongest where product UI, implementation quality, and practical automation meet.
Website: stackwerkhaus.de
Email: info@stackwerkhaus.de
GitHub: github.com/bpnace